2017 GSX-R1000 S2B: Episode 4 - Exhaust Installation and Theory (Part 3): Full Exhaust Systems

[@michaelovitch]

Don't need popcorn,you feed brains well enough. Thank you for your work,and the instructive entertainment wich followed it.

[@jeremybly]

I've literally watch this series in full over and over and over again. So many details to learn from these videos.

[@BrockDavidson]

Glad you like!

[@williamdaniels8128]

1970s ex drag racer bought first motorcycle 2022 zx14 Feb 24 I enjoy your instructional vedios

[@tom24gr46]

I have alot of respect for Brock's after watching this (and a few other) videos. Shows some good American ingenuity

[@BOOSTEDH2]

Thanks for taking the time to get so in depth. Not a lot of people out there that will do this.

[@BrockDavidson]

Thanks for your appreciation @BOOSTEDH2

[@danteparker92]

You’ve made it simple for a lot of guys that don’t know anything about exhaust systems. It also takes a real technician to admit when they are wrong. Brock’s is the best street exhaust system. Best sound ever!!!!!

[@gaddy8964]

Man I tell ya...you just gotta love the fact on how this man takes the time to explain and educate his consumers/fans about his products and how they work. Been looking at that AH2 lately tho...👀

[@RelentlessDjango]

As am avid road racer and GSXR 1K owner, this has got to be the most informative exhaust flow video on YT. Preciate it Brock.

[@WhiteBlaze5541]

Your honesty sells it all. Fantastic! Made a customer out of me.

[@avefan1061]

me too. this guy is a genius.

[@jryer1]

Outstanding Brock. All that hard work, and video editing, people have no idea. The sound of the Alien Head 2 exhaust was beastly, an experience in of itself, wow! 190-195 hp range with huge torque after tuning with the Alien Head 2 on pump gas. So we probably have 190+ hp on pump gas for Predator Exhaust Titanium (road racing), 15 lbs less weight, and great sound. Suzuki nailed it, from stock to Brock, I love it. This bike is going to be amazing on the track, untouchable with the right rider, both road racing and drag! After watching this, I think I'm going to have to set my traction control 1 setting safer when all is bolted and dusted :-) Dang what a machine!! Nice Brock, very nice. It just keeps gettin' better.

[@BrockDavidson]

Thanks! It's a bunch of 'work' but we are having a ball with the new gixxer (:

[@jefflester4273]

Hello Brock, love your videos bro. My question to you is; I just bought a new 2017 250cc Formula sportbike; i love the design but, i,am a little worried that it maybe a little under power because i had a 600cc sportbike before and i,am afraid that i might have bought a bike thats going to be under power than what i,am used to. Can i do any power upgrades to enhanced the speed of my 250cc sportbike to my liking.

[@JDBoomin]

O

[@BrockDavidson]

I'm sorry, we have no experience with that machine.

[@atiroocky]

Man, you are so good and a professional "nit-picker" ! Internet needs guys like you. I’m so impressed how far you go in the details.

[@BrockDavidson]

Thanks 👍

[@AJTalks]

I am buying a Brocks full system and tune for sure over their competitors after seeing these videos.

[@BrockDavidson]

Thanks @Alex Johnson - We do this type of development work for every Brock's performance exhaust we sell, and have for many years. Our biggest issue is that we don't have access to bikes early (like the bike guys) so we have to start product development after the bikes hit dealer floors - it takes us a little longer, but the wait is worth it.

[@elgar6743]

Seriously AWESOME stuff!! Thank you Brock for yet another lucid, informative and imminently interesting video. This 34 minute segment felt like 5 minutes to me. Very much looking forward to the next episode. Best!

[@BrockDavidson]

Thanks!

[@OscarGomez-yc5zm]

@ Brock Davidson , man you're killing the competition the proof is in the pudding & it's great people like you manufacturing mint American products that out perform Thanks for the great content.

[@jamiebrierly3107]

Brought my bike there and Brian made it a beast with all your accessories! Fastest bike in my area! Thanks brocks! U made my bike a beast! Green 2012/zx10r

[@youtubed9695]

Also love how all comments are positive! Can't wait for next video

[@navinybt]

rode a 14r with an alien head on it. no tuning or air filter. just this exhaust. i swear, the sound it makes when you cut the throttle at 10k+ rpm, it feels like a sonic boom! such a quality system.

[@Alps6408]

Wow, Brock you're a genius! Certainly looking forward to seeing more of this, I'm sure that once you're finished with the GSXR it will be a monster! Fine tuning and I'm sure you'll be over 200 quite easily. Once I've moved to the US you'll be the guy I use.

[@P3iSwe]

I must say that these videos are really great and I'm definitely an upcoming customer after watching them so far. Keep up the good work

[@BOOSTEDH2]

That predator pipe is gorgeous

[@hassanaltamimi9489]

Never bored while watching your series 👍

[@hassanaltamimi9489]

Got alot of info from these videos 👌

[@biglisagod]

Great videos Brock. Just quality stuff. Learning a lot just from watching. I can tell you're a man who knows his craft very well and I can tell you love what you do. Cheers from toronto Canada buddy

[@shustyrackleford7356]

That's insane! Great work, guys. Can't wait to see what you can get with more tuning.

[@TheAstraios]

34hp holy shit. Hahaha thats a huge gain for a customer when comparing to out of the box. (Ecu flash obviously helps a lot) but seriously people were already comparing these and they were fast because of the way they produce their power in a very liner fashion. With a top end now to boot on it, it is going to be an absolute weapon.

[@cosmicsurfer5911]

Absolutely brilliant series and love all the technical jargon. Keep at Brock, munching my nails for the next episode already. :) Keep it on the black stuff.

[@allnighterist]

im 3 years late to this video, i dont even own a motorcycle but damn i really enjoy this series.

[@BeardedFordTech]

I love these videos. Very smart guy. Knows his shit. I've was a motorcycle tech for a while and I roadcourse race. I've never been this in depth with exhaust and ecu tuning. I love it. Keep the videos comming

[@jryer1]

"Less negative pressure", absolutely makes a huge difference, and how do I know this? I run a custom vacuum still, sometimes 1000 millibars below atmospheric pressure, and I can tell you even a 10 millibar variance can make a huge difference in the performance of the still, and we are talking about less negative pressure not positive pressure. Now while a still and gasoline combustion engine have a lot differences, the range of vacuum (pressure) in both is paramount to optimum performance.

[@ruikazane5123]

It's still negative, but at least it's less. That alone is a good thing!

[@BrockDavidson]

See description for detailed information and video time tags. Might want to grab some popcorn also, as we cover A BUNCH of #stupidfast exhaust information.

[@turbokp....479]

Brock Davidson from the video we seen on 650 ib it looks like the Gsxr1000 rr cant compete with the the bmw 1000 r and the zx10 r and rr model .... so is it all hype ??? Or can it compete against the new 17 model bikes ???

[@turbokp....479]

Mrassholebynature1 what you think big bro ????

[@BrockDavidson]

@99gsxrboy - Please don't let 650Ib's slowness let you create a false impression of this bike. I LOVE the guy, but he is too big to be racing 1000's and, especially taking apples vs. oranges races. Our new gixxer is already producing power numbers equal to or better than most modern 1000's, and we still haven't tuned it yet or done any of the other things we do to make bikes 'race ready'. We will have this bike flying a soon as all of the parts and tuning capabilities are available.

[@turbokp....479]

Brock Davidson oh ok kool i will be watching

[@JCAB72493X]

Brock Davidson love this series. Can you do a naked bike once you are done with this bike? Nakeds are getting a lot more popular (I have one) and I'm interested in the gsxs 750-1000. I'm curious as to what the bike would be like when it is unrestricted and tuned properly. Keep up the good work brother.

[@sural89]

definitly worth the wait amazing series

[@yustianp9708]

Brock, you are a legend

[@brandoloudly9457]

really just started getting into the tuning and drag racing channels. this channel is a gem, sir. keep it up

[@BrockDavidson]

Glad you enjoy it! Tell your friends about us 😀

[@ross5506]

Brock their was a day long long time ago back in 1980, my beast the H2 750 with Denco Chambers it was so dam loud that you couldn't hear the space shuttle, lol. Them were the days I would go to Lang Hindles garage watching him fabricating Headers for his KZ 900 along with KZ1000. Back in them days if you built it right you got big power out them pipes, but major pain in the ass jet remember Lang had large board from everything from pilot jet , air, jet,, but most important the needle jet shims just get it spot on. For top end performance I was the Ginny pig that would go on the highway have screaming every year till 4th cut the engine pull over side remove all 4 plugs just to see the colours. We've come a long way not only the nightmares of having them run well, but today pipes are built so well so much R&D goes into them. Mostly great weight savings nice sound. Yet to see a pipe give out over 20 HP like golden era of superbike. Brock I been trying to work on bikes from the triples no Suzuki's, lol, when things really heated up 80s big bore love that GS 1150, to real superbike days 1985 that the year we owe all this to that era. Great job Mr. Davidson love learning from you real have great gift even the squids can lean a thing or two from you. Cheers from 🇨🇦🇨🇦

[@Cobradaddy]

These videos are really good, everything is explained very well. Your exhaust have been known for their performance and quality, I just can't get over the look of the cans, everything else looks awesome.

[@BrockDavidson]

Thanks for your input. What would you rather see?

[@Cobradaddy]

Brock Davidson Hey, personally, I don't like the megaphone look, or the tapered look. I think Akrapovic exhaust probably looks the best. Cans have a good shape and sound amazing, but could be louder. I also like how they etched the name on the can on the R1. Nice clean look. I have an 07 10R, and would have bought the Racefit Growler if I didn't have to shave the swing arm, but I do like the undertail exhaust. Just my opinion, not bashing. Thanks for the in-depth videos.

[@billgriggs2092]

Absolutely brilliant thanks for your time and hard work mate

[@mzk6550]

Wow!!! I ride an Aprilia but somehow the language about this Suzuki makes more sense. Maybe I need to buy one! Great video thanks!!

[@trevorbailey4441]

Just stuck a full arrows titanium system on mine, bmc race filter, ecu flash and fueling work, got from 176 standard to just over 185 peak and 80 to 83 foot pounds of torque, but picked up nearly a 20bhp gain in the midrange, from 6k through to 12ķ and you can really notice it, the throttle response is like butter now, the engine had only just covered 1000 miles, so its going back in at 4k for another dyno session as it should of loosened up by then

[@brantleysmith6386]

Yes!!!!!! I've been waiting.

[@ronaldk.wileyjr.5476]

Really appreciate your passion & honesty. Thank you.

[@mitchnauss6725]

Man I really appreciate watching that. I have dabbled with an exhaust on my friends bike and I can tell ya that .063 larger on the choke and id woke it up crazy.

[@bruceesterline3170]

Brock's Performance exhaust is the best looking sounding available IMO.

[@jtegland]

Thanks Brock, I've been waiting for this to come out.

[@Glen45]

Another high quality video! Keep up the good work. I look forward to the next one.

[@martins7194]

I can't tell you enough how much I'm enjoying this "series". It's like waiting for a new episode of Game of Thrones, or The walking Dead. That exhaust sounds awesome!! If I were getting a 2017 GXS-R 1000R I'd seriously consider the full titanium exhaust. (plus full ecu flash etc etc. Hope you ship to australia). Atm I'm still in the '17 CBR1000 SP camp, though it is just about 50/50. lol. There will definitely be a new bike for me next year, so still have some time to make up my mind. Question, doesn't ECU tuning eliminate the need for a Power Commander?

[@BrockDavidson]

Thanks! Yes- a properly tuned fuel flash in the ECU can eliminate the need for a power commander. We will discuss this in detail in a later episode.

[@haidulidu]

Great video, really interesting stuff! Now i'm more interested in your products! Two thumbs up!

[@renaldolamar]

Looking to get a GSXR 1000R and I'll be adding Brock's goodies good video nice in-depth explanation

[@worldrecordpushrod4654]

your right on the money brock great job.

[@alibalway9285]

Hi bro, I got F1 code on my 2017 Gsxr 1000 and they told be its from the exhaust, so you have any idea how to fix it ? Thanks

[@BrockDavidson]

brocksperformance.com/engine-clutch/electronics-ignition/brock-ecu-flash/suzuki/

[@jimamizzi1]

Another brilliant video Brock. Jim, Australian fan

[@BurningBroadcast]

It amazing me how much of this stuff matters. I dont know anything about exhausts and was always under the impression, exhaust shit as fast as possible = best. Randomly stumbled across this video and I am glad I did, very interesting Brock. New GSX-R is a real beauty too. Pure out of curiosity, what would be the benefits or downsides of ending the exhaust before it even goes under the bike and exhausting it to the ground or sides. Aside from weight saving ,would it reduce performance anywhere? Because as you explain with the drag pipe, moving air, shortening the pipes would mean it moves air out faster wouldn't it?

[@BrockDavidson]

Thanks! And great question. Extremely short headpipes can seriously hamper low-end performance in naturally aspirated situations. You will notice that most turbo charged and almost all supercharger race bikes have very short exhausts, as their power adders compensate for any reduction in low-end. Our Alein Head is as compact as we know how to make a short pipe - the muffler itself is a short/tapered megaphone, which helps eliminate the need for a longer elbow pipe to keep peak power high and not hamper mid/low end power due to minimized overall lenght.

[@vyjk]

Keep them coming, fascinating stuff! Ty!

[@coreydelong5733]

Brock- is there an extended swingarm kit manufactured for a 2017 GSX-R 1000R? I'm wondering how far the rear speed wheel sensor will reach if possible. Thanks!!

[@BrockDavidson]

@Corey - yes, swingarms and bolt-on extensions are available. We make an extension harness to handle the sensor: brocksperformance.com/speed-sensor-extension-harness-14in-gsxr-1000-17-18-hayabusa-13-18/

[@ur2slob724]

Hey brock greetings from Australia Awesome video brother! Any exhuast for a GSXS 1000 2015-2017 ? I’d love to buy one of you cheers

[@BrockDavidson]

Hello from the US @patrick - we don't produce components for the GSX-S1000 at this time, but we have received enough requests to start looking into them.

[@jpolhamus71]

How does the Predator exhaust compared to the alien head exhaust what's the horsepower difference

[@sleezediditify]

Exactly

[@joshflics2183]

What I'm getting from these videos is that the majority of the horsepower gains come from deristricting the throttle alone. the mapping gives a little bit extra but not by as much. Is that correct?

[@BrockDavidson]

From a purely power standpoint, that's becoming the case more and more. The problem is that while this is going on, driveability continues to suffer even more... Which makes proper mapping critical not only when it comes to power and rideability, but also acceleration.

[@Bubblelover13]

I have a question and I've been searching the internet high and low for it maybe you can help me. so I know you can run MR12 on a stock motor but its basically a waste of money unless your ECU has been mapped for MR12 but my question is can you run MR12 mapping on 93 octane? is it good bad or no difference.

[@BrockDavidson]

MR12 will achieve it's best performance results when the air-fuel ratio (AFR) is properly adjusted for its use. This fuel adjustment can come via an ECU fuel adjustment or via a 'piggyback' fuel controller (Dynojet PCV, Bazzaz controller etc...) If the ECU is mapped for MR12, the AFR will be far too rich for use with 93 octane. Your bike will still run, but sluggish performance, 'lurching' (lack of smoothness... like an engine with an oversize cam), excessive soot at the exaust tip and poor fuel mileage will result. To combat this, we leave the ECU fuel map alone (but derestrict other areas of the ECU for maximum performance) and use a map selector switch to easily convert from a pump gas map to an MR12 map as easily as flicking the switch (no computer required). Please call our customer service team for more info. 937-912-0054.

[@Bubblelover13]

Brock Davidson oh ok I appreciate that!Thoroughly explained. I’ve had my ECU flashed (Brentune) for about a yr now and I have 2 flashes one for 93 and one for MR12 I was just curious of how my bike performance would be using the MR12 map but using 93. Didn’t want to risk messing anything up so I didn’t put it to the test.

[@elijahinky]

You da man Brock!

[@MotoVengeance]

Just out of curiosity you said you can plug the crossover, can you just pinch it closed? Honest question

[@BrockDavidson]

It's normally open, so you would need to remove the cables and safety wire it closed. The problem with that is you will lose peak power because the OEM header pipe diameters are so small. The valve basically lets all 4 pipes evacuate all 4 cylinders are high rpms only. Its very ingenious...but it's also restrictive by design.

[@MotoVengeance]

@@BrockDavidson good to know the science behind it. Thanks for the reply brother

[@ry8752]

I have a 07 GSXR1K and I am buying the new 17 GSXR1K. Only reason I don't have the bike is because I want to order and have all parts day 1 when I bring my bike home. I can't wait until you are done so I can hv a baseline to build my 17 drag bike Are you going to do the pair block off plates and crank case block off plate? Also, is a Brocks clutch mod needed on this new 17?

[@ericpineiro5299]

Yes! finally Part 3

[@swatboss1]

stupid fast and the most beautiful sound. I saw a zx10r here in Turkey equipped with Brock exhaust. It was amazing. I cant explain my feelings by words :) amazing man. I am looking forward for s1000rr 2017 work from you. take care. and by the way I know you via @650ib ;)

[@MateuszSnyman]

First of all : awesome video ! second : could you compare the predator to the alienhead ? PLEASE !!!!

[@BrockDavidson]

Did you see this? facebook.com/BrocksPerformance/videos/10154655332516472/

[@MateuszSnyman]

I didn't see that before, thanks

[@sural89]

isn't the predator supposed to be bit better at mid range and the alien head a little more at top end (wider and shorter)? number are exactly the same with a little gap at 8k on the predator

[@BrockDavidson]

That's on two different bikes. Lukes R model with more miles/different fuel etc... it's only for general comparison.

[@apexhunter2k]

Hey Brock, great video and info as everyone else has already stated. I thought you forgot about this series, I have been waiting and waiting even though I'm subscribed, I still was just your website and if to make sure I didn't miss a video. Come out with the next one quickly please lol! Since you say the drag strip is a great tool, will you test the alien head exhaust with flashed ecu and tuned against the predator exhaust flashed and tuned. Since they both make similar numbers without tuning, I'm curious to see how they perform in real world application. I don't know about any other but when I watch your videos, I take notes. There aren't too many motorcycle info vids that gives solid info like that out there that make me feel like I have to write down. Keep up the great work. I like the headers on the alien head but not the muffler so much. Do you have any plans to have different looking mufflers that will fit the different headers like the alien head and predator design? I personally think this would be a lucrative financial benefit for your company.

[@BrockDavidson]

Thanks. FYI: a 20 minute vid can take 50+ man hours to produce - we would love to make them all day, but we wouldn't have time to actually work. Keep watching our GSX-R1000 product page for new items: www.brocksperformance.com/brocknm/templates/bpp1.aspx?articleid=831&zoneid=22

[@5kyWalk3r-Vision]

Wish you would make the predator exhaust system for the K7 1000...Brock.

[@varider5103]

When is episode 5 coming?

[@TheOldgixxer]

Excellent vid Brock

[@MoodSwingZX]

That flash would work on stock exhaust to. Show derestricted ECU with stock ECU.

[@vladak8289]

Love watching your videos. Very informative and helpful

[@raceaddict3212]

Very good detailed video brock.. i can see your exhaust sales rising a bit during and after this series.... quick question how much heavier is the black stainless predator full system for this bike in comparison to the titanium one and is the internal diameter any different whatsoever being that the material thickness may be different?

[@BrockDavidson]

Our staff will have those on the technical tabs of each product, soon.

[@neroozx10r53]

Can you do all the same videos but for a ninja zx10r 2017????

[@BrockDavidson]

We did this exact development work on the 2016 ZX-10r: www.brocksperformance.com/brocknm/templates/bpp1.aspx?articleid=780&zoneid=25

[@DonGH297]

Hi Broc, is there a difference between the sensors on european bikes? I heard most bikes don’t have O2 sensors in the USA. I hope you can help me with the following question: I have a 09 zx6r with a slip on pipe + link pipe. The headers are stock and the cat is still in. I want to install a bmc race filter. Now do i need to keep everything as it is or is a full system required? If so, would my bike run lean and bad if i don’t flash my ecu after full system install? Would it run lean from installing the bmc race filter alone? Thanks in advance! Best regards Donny from Holland

[@taitheguy85]

This is genius. Took me about 5 videos before I realized these are all sales videos, *not* tutorials. The shop, the dyno, and every product used & featured, from fluids to pipes, are all available for sale, by Brock

[@BrockDavidson]

Thanks! And yes, while we educate the consumer of the best products to use - since we use what we sell-we also make the products available to them...if we don't, they get angry.

[@SportbikeUnitedRiderz]

BROCKS IS DEF ONE OF THE BEST EXHAUSTS ON THE MARKET PERIOD ! GLAD I HAVE THEM ON MY ZX14-R

[@ambertomlinson9884]

Hey Mr. Brock I need a full exhaust for my bmw s1000rr 2018. I would prefer titanium over stainless if you have it. If you can give me some info on where to purchase your products I will definitely buy this system or one suitable for my make and model bike. Thanks man

[@chriskennedy7262]

sounds awesome brock :)

[@christiansugiharto590]

hi brock! i have watched your video about exhaust section, but i didnt found the answer of my question. i wanna ask , why after change stock exhaust with aftermarket freeflow exhaust, somehow my bike surging in some rpm. did changing full system freeflow exhaust make my bike leaner? but when baffled it become normal(not surging anymore)

[@BrockDavidson]

Hello Christian - what you are describing can typically be tuned out. Your ECU was not designed and it is not internally tuned for a high-flow exhaust (this can cause a lean condition in some areas, and a rich condition in other areas - it depends upon how your exhaust is designed. By inserting the baffle, you have reduced the flow to a point which more closely matches the bikes original exhaust/tune, so surge problems can be greatly reduced.

[@christiansugiharto590]

Brock Davidson thanks for your reply Brock. may i know the afr value can cause lean surge? thanks Brock!

[@BrockDavidson]

Most people believe that surges are due to a lean condition, and this was almost always the case with carburated machines. But many times today's monitoring equipment shows it is a rich condition on fuel injected bikes. We keep our AFR's between 12.8 and 13.6 for most hot street applications

[@christiansugiharto590]

Brock Davidson wow, thanks Brock, your information enlightened me. im very appreciate that.

[@ross5506]

Will you be making full exhaust for the H2 SX SE +, it would show that beautiful rear wheel, sound and power of course?

[@BrockDavidson]

Yes. It's in production and should be on our site for purchase in a few weeks. Please contact [e-mail] to be notified when they are available.

[@triedproven9908]

Great stuff brock! Another point to make about the crossovers on the exhaust are they even out the pulse width of the exhaust to decrease back pressure of the exhausting piston and increase back pressure on the piston preparing to fire creating more torque supposedly. Big fan of your work! Im sure you will pick up 10hp easy once you tune the commander for the exhaust and put an intake on it. We will probably be looking at a 205hp bike pretty soon. How much you want for it when you're done playing with it? LOL

[@BrockDavidson]

I was afraid we already crossed the 'boundary of understanding' for some viewers, lol. Yes, this bike will be for sale at the end of the project. I have no idea on the cost as we haven't decided what products will be added, etc.

[@iSVX1103]

Which is louder for GSXR, Predator or Alienhead 2?

[@BrockDavidson]

Alien Head is louder than the Predator...the Penta-Carbon is louder than the Alien Head. blob:kzbin.info

[@zerugar]

How does it compare to unrestricted ecu with stock exhaust and later both exhaust tuned?

[@BrockDavidson]

I believe we answer the first part of your question at 31:37? As far as comparing both pipes, we didn't have room in this video. But here are some previous Predator exhaust results: facebook.com/BrocksPerformance/videos/10154655332516472/

[@zerugar]

Thanks for the reply, sorry for being unclear! I meant unrestricted ecu with stock exhaust like the EU-model of the bike as it should make around 180hp peak. Maybe you had it in a previous video where you discussed the throttle plate restriction... It would have been nice to have in the overlay at 31:37, as what I understand it's currently the: 'stock ecu/stock exhaust', 'stock ecu/your exhaust' and 'unrestricted ecu/your exhaust'. So it's just the addition of 'unrestricted ecu/stock exhaust' I'm looking for.

[@BrockDavidson]

Check this out: kzbin.info/www/bejne/m2G3YaNtidiJadU

[@zerugar]

getting +10hp minimum across the board with just an exhaust untuned is really good, I'm excited to see what the gains will be when the fuel map is optimised!

[@BrockDavidson]

@zerugar, you are 100% correct - especially these days. Please remember the 2017 gixxer is manufactured under Euro 4 regulations. I was pleasantly surprised when I saw how restricted the OEM exhaust is, because I knew it meant bigger gains for us :)

[@bigmack10]

fxcking love the look of the gsxr especially with that exhaust

[@James-jy2lg]

Great video and very informative!

[@will160176]

@Brock Davidson, Just one question. Your other exhaust (not the alien head 2) comes with the noise insert. Yoshimura Alpha T race full exhaust system comes with a similar looking baffle. Are you saying universally those things hurt peak power? I got into a fairly long argument with a guy dyno tuning my bike. (not an unhealthy argument, I respect his expertise but he wants me to pay an extra 300 dollars to redyno my bike because I didn't know it came with insert installed). He said these exhaust systems should not have baffles removed it will actually reduce peak power. Where as I was saying the opposite. Been awaiting a direct answer from Yoshimura as to why that full system comes with the insert installed.

[@BrockDavidson]

@William, there is a large difference between a noise reduction insert (NRD) and a baffle/muffler. The noise reduction insert is an intentional ( typically removable) restriction in the exhaust outlet designed to help eliminate noise. The NRD is inserted into the baffle (located inside the muffler) and YES this restriction hurts peak power. Consider it a 'restrictor plate' on the exhaust side of the engine. Removing the baffle is a different story: it would be like running our Alien Head or Predator, etc... with no muffler whatsoever. All Brock's Performance exhaust systems come with mapping to compensate for the use of a noise reduction insert, or without. Our ShortMeg's and Sidewinders can be run without the baffle installed, so we offer additional mapping for no baffle use when required. It's not uncommon for us to offer 3-6 maps for some bikes/pipe combinations. These maps are supplied at no charge with all Brock's Performance full exhaust systems. Of course, your dyno operator will charge you to create separate maps for various combinations. More info on Brock's Performance Map Support Program: blog.brocksperformance.com/brocks-performance-exhaust-purchase-guide/

[@fantastic5477]

Hi Brock, thank you for your really detailed explanation of the exhaust. My question is what would you say when i take out the catalyst from the original exhaust and drive with active exhaust valves, would the gixxer lose horse power in midrange or on the top? I am from Europe and wouldnt loose the sound emissions but would gain some power, so im thinking about this option.

[@BrockDavidson]

The gixxer has intitionally small diameter exhaust headpipes, you can remove the cataylist, but the headpipes will still prevent maximum peak power output, especially if the crossover valve is removed. I don't know if removing the catalyst will hamper or hurt midrange as the addional exhaust volume provided by the catalyst tends to help power output. If this helps answer your question.

[@fantastic5477]

@@BrockDavidson thank you for the fast answer, so I will test it and see how it works. Thanks alot for your shared informations around the world👍

[@seanp100]

I have a ZX12R with a full Brock's system, the street meg. Is it possible to change the can to something a bit more quiet. If so which can will work?

[@BrockDavidson]

We have baffle inserts...contact customer service.

[@Gabriel-mv8ge]

Hi Brock i have a question i removed the cat from my 2017 gsxr 1000r what should i do with the valves in the headers should I keep them close or open

[@BrockDavidson]

There is no answer to that question other than replacing the headpipes if you want maximum performance as the OEM headpipes are designed for use with the valves. Leave them open, low end power suffers - leave them closed, high end power suffers. It's a lose-lose.

[@Gabriel-mv8ge]

@@BrockDavidson yes i notice a lost of power and im not sure if the bike is running lean but hopefully when all this virus situation is over I'm going for that Alien head full system thanks Brock

[@XxCrazedEvolutionXx]

How come you didn't mention the humidity difference.?

[@disarray0921]

Was sold, ready to buy a full exhaust for my 06 R1. Went to your website and all. Kinda bummed you don't make r1 full exhaust setups. Oh well.

[@BrockDavidson]

Sorry Disarray 09 - we discontinued those a while back.

[@jfro5867]

Very interesting yet again thank you

[@ChristosDrifter]

Gretting from Greece man, awesome videos !

[@BlackMigoRez]

Brock you should do an exhaust comparison between the Ct Meg , short meg, alien head, & predator system on the new GSXRs

[@revolutionmotorsport]

What is the difference in readings from a 5th gear pull to a 4th gear pull Brock

[@BrockDavidson]

It really depends on the bike. Typically not much, if anything.

[@paladinorigins2057]

Nice work as always!!!do we have number with the predator on the dyno???

[@BrockDavidson]

facebook.com/BrocksPerformance/videos/10154655332516472/

[@paladinorigins2057]

thanks !!! the predator will take ct series place??i love my ct exhaust btw!!!

[@BrockDavidson]

No. The CT's just take longer to design/mfg. We hope to have them available in October.

[@paladinorigins2057]

Good news!!!

[@oldschool6268]

Good job ! So with a flash and pipe, then tuned we should be at or around 190 hp. Should compete great with a BMW 1000R.

[@hardup9809]

Old school that's about right have been seeing 187to195 usually

[@izzivilli2710]

Getting ready to buy the full system alien head full system is it just as loud as the zx10r with the alien head as the new gsxr 1000?

[@BrockDavidson]

Yes. Our Alien Head 2 sports our most aggressive sound, regardless of make/model etc.

[@nortondlcl]

Great gains , Also what oil additive do you recommend ?

[@BrockDavidson]

Petron Additive is the best I have ever used: www.brocksperformance.com/Petron-Oil-Additive-4Cycle-Lube+I790154+C80.aspx

[@nortondlcl]

Did you guys dyno results ?

[@mike216ism]

And that's why Brook is the good standard. I've been saving my cash to buy a full system and ecu flash. Hopefully the end of summer

[@myriad860]

I wish I lived near this shop! Stuck in NY with no real options for professionalism like this!

[@merkman2587]

any update on the ep.5 video? or did I miss it somewhere?

[@faithworksunltd]

whats the most hp gain have u got ( to date ) on a Gen 2 ( 2008 ) hayabusa with the alien head exhaust, aftermarket air filter, flashed ecu, and tuned fuel manager ? your hp gains are unbelievable...

[@BrockDavidson]

190-195 on pump, over 200 on good gas. They run GREAT: kzbin.info/www/bejne/raPWeqeVfpubp9k

[@faithworksunltd]

Brock Davidson really... i just got mine dyno tuned i got the brocks alien head ecu flash mwr filter and bazzaz fuel manager n they only got 180 hp and 105 ft lb of torque... why is that ???

[@faithworksunltd]

the same hp and torque gain from 2 well known businesses in atlanta Ga. how are you beating both of them ? what are you doing different ?

[@MrPninja]

Another awesome vid Brock, do you ship to Australia with our 98octane as well

[@BrockDavidson]

We do ship to Australia. We can't provide spot on mapping for use with your fuel, but we can get close. Here is more info on how we deal with international fuels: www.brocksperformance.com/absolutefm/?f=249

[@MrPninja]

Brock Davidson Australian bikes are the same as the Euro version, luckily not the as the US restricted version if that helps, but I do have the Woolich auto tune which should help