I AM SHOCKED WITH THIS PIPE! Fatbob build / Pipe swap / Screamin' Eagle / Explained / Best Pipe Yet?

[@robertfagan8833]

Wow very surprising but also very interesting. Keep on the producing these videos . I personally love the D&D

[@MasterTechMiller]

I am a huge fan of the D&D. I can't believe the results!

[@harquebus73]

Awesome work- I remember the Yamaha warrior had a similar stock pipe

[@MasterTechMiller]

It sure did! Looked very similar. Big long round silencer on it.

[@DWRECKED91]

Man.... that is a significant increase.... I did not expect that. If only it wasnt so large and bulbous. It looks better on a fatbob than a lowrider S though for sure. You probably dont have time for another cam swap, but would love to see an Andrews 485 in there. Very little information about it out there so far. Thanks for the great videos, looking forward to the next one.

[@MasterTechMiller]

Thanks for watching & leaving the comment. I know exactly what you mean about it. It actually does suit the Fatbob a lot better, but I'm still not sold on the looks of it. If I see the apprentice with idle hands I will have him swap out the cam. It will most likely be the CR515 though sorry. Only because I have it here in stock. Thanks for supporting the channel 👍

[@robertfagan8833]

Wow very surprising but also very interesting. Keep on the producing these videos

[@MasterTechMiller]

Very interesting! Thanks for watching 👍

[@danr919]

Just what I thought and said that SE pipe did out perform. Thanks for video another great comparison. No matter how good we are at what we do we always learning something. Let’s see how many run out to buy this pipe now 😂

[@MasterTechMiller]

Thanks for checking it out. I am blown away with the results. I never thought that would have been the case. I love it when something like this happens, as you said, it's great to keep learning 🙌

[@carlbruhn1772]

More great information for that library of performance facts your creating.

[@benslocum7412]

Wow. That's a phenomenal result

[@MasterTechMiller]

It's blown me away!

[@alexking1251]

Wow! Very interesting… Great video again TM!

[@clubstyleridahd4695]

Love your videos man! Keep cranking them out for us. That SE pipe sounds way better with out the cat! I also think it looks best on the fatbob . Doing these kind of test is what sets you apart from everyone else.

[@MasterTechMiller]

Thanks mate. I appreciate the support

[@MasterTechMiller]

Thanks for watching & supporting the channel 👍

[@yourenotrelatable]

The fat bob is so cool. If the fat boy didn’t exist I probably would’ve gotten one.

[@MasterTechMiller]

I'm stoaked with how it's coming together

[@arron.meehan]

Great comparo & great vid. 👌🏼

[@MasterTechMiller]

Thanks for checking it out

[@mickrose6450]

🍻Tommy always a good watch👊

[@MasterTechMiller]

Thanks for watching & supporting the channel

[@surfcoastrk8970]

Gotta love skids

[@jimyounger9490]

We had an ST with a 131 and that pipe. I love the looks of that exhaust and now I see it’s actually a great performing exhaust system also. Love the channel.

[@UnrulyRider]

Would have made more power with an HPI, Sawicki, or Fab28 2-into-1. The other exhaust I mentioned also look and sound a lot better, and weigh less than the Screamin' Eagle emissions compliant junk.

[@jimyounger9490]

@@UnrulyRider so is this the best set up in the world ?? If I do it no one can tell me something else can make even more power correct ?? But if so , just what the hell good is it then ??

[@UnrulyRider]

@@jimyounger9490 The whole point of running a Screamin Eagle exhaust is that it meets emissions requirements and will still be honored under a factory warranty. They gutted the catalyst so it no longer meets emissions or be covered under warranty should something happen. Why not just run the better exhaust from the start? The money is better spent in the aftermarket exhaust if you want looks, performance, and sound.

[@cruisinwithcannibal7280]

@@UnrulyRiderget a better dealer if exhaust voids your warranty Never had a warranty claim denied because of an exhaust unless you’re a total dick

[@jimyounger9490]

@@UnrulyRider I didn’t even catch that they did that. Have to watch again. But I do love the way this thing looks over other 2 into 1’s.

[@jasonkimble8926]

Hard to believe that

[@MasterTechMiller]

Crazy right!? I'm absolutely blown away! 😳

[@williamferril3274]

That's why you do what you do Trusted . Reason for the 10K

[@MasterTechMiller]

Cheers mate! Thanks for watching 👍

[@un4giveronCoD]

Give it to it Tommy

[@stephenhamer1702]

Backpressure helping scavenging ?? Would be interesting to look at valve overlap in conjuction with this....lift isn't everything eh.......

[@MasterTechMiller]

💯

[@JakobKaizen]

That’s craaazy gains. I don’t get it.. Is it the D&D that is too free flowing and ”big” for the setup or what?😮

[@MasterTechMiller]

Not sure what or why is the reason for this unexpected result. I'll be doing some research into this more to find out

[@user-os1mm8to6l]

Don’t all SE pipes still have the cat?

[@MasterTechMiller]

Yes. But I removed it on this pipe way back when I first trialed it on the 117ci Lowrider S (link in description). It is still a quiet pipe with the Cat removed. Not sure if the Cat being removed has hurt the performance of it, but I am still blown away with how it responded on this combo.

[@UnrulyRider]

@@MasterTechMiller So no longer emissions compliant, defeating the entire point of using this pipe. I'm willing to bet that other pipes would make better power... HPI long, Fab28 or Sawicki mid-length - would probably make better numbers, as well as look better and weigh less.

[@MasterTechMiller]

@UnrulyRider more than likely there are many pipes out there that would be better than this option. This video is what it is.

[@T4G95]

@@UnrulyRidera high flow cat really isn’t going to choke and engine down as much as people think. If the rest of the pipe is straight through you can get some benefits from a bit of back pressure. My v and h big shots were a huge improvement from the stock exhaust system

[@UnrulyRider]

@@T4G95 LOL, Vance and Hines short shots and big shots are terrible for a performance exhuast! What were your "huge improvements" in other than noise? Asking torque or hp and was that over the curve or peak numbers?

[@knowname23]

No substitute for muffler volume (not db!)

[@danr919]

Good point 👍

[@thorout8377]

What about the Burns no holes barred? Suppose to be the best.

[@MasterTechMiller]

Not enough Camshaft or Head work to worry about the Burns pipe. If I had bigger +2mm valves in the heads with a 550 lift cam with more duration I would for sure be using it.

[@UnrulyRider]

Should have shown the graph in SAE and also would be nice to know the correction factor of your dyno...

[@MasterTechMiller]

Will take a photo and post it in my community section on my channel. The difference will be lucky to be 2 or 3 numbers. Everyone gets their mind twisted over correction factors.

[@danr919]

Everyone or 98% of Motorcycle tuners in OZ use STD smoothing 5 when dyno tuning and you get your print out so if that’s the way they doing it and only comparing with the Majority it doesn’t really matter

[@UnrulyRider]

@@danr919 Cool, here in the states we use SAE as its closer to real world numbers... STD is always a bit higher. The correction factor could be set to zero allowing the number to read higher as well. All tricks many dyno operators play to get higher numbers. Not saying that is what was done here, but I've seen it more than a few times.

[@danr919]

@@UnrulyRider 100% percent everything you say is right too 👍

[@geraldgoodiii6993]

Bruh that pipe so fugly tho lol Cant argue with results tho Wow… just .. wow

[@UnrulyRider]

Definitely one of the ugliest exhausts I've ever seen.

[@MasterTechMiller]

It doesn't look very good at all.

[@madddog692000]

That's a fantastic result. Too bad, in my opinion, it's just not good looking at all. It looks kind of like a propane tank 😅

[@UnrulyRider]

I agree, looks heavy too!

[@nbowling10trio]

The fat Bob is the bike i been looking at. This what i want. Curious to know the best combo on it

[@MasterTechMiller]

The 'best combo' will come down to your own riding style & how you want the bike to perform. If your after a great all round kit that provides awesome results, then a 128ci Stump Puller kit from Alpha Performance Engines may just be the answer?

[@ArmeroPR]

I guess that not everything SE is total garbage. Guess it depends on the product itself. Interesting, thank you

[@MasterTechMiller]

Thanks for watching 👍

[@JCunningham21]

probably kills 15hp with the weight though. Was it heavy. looks heavy.

[@MasterTechMiller]

This pipe is VERY lightweight. Made from Titanium & Carbon fibre. It's very light

[@alexalex9971]

Is it very loud? I want to buy it but I do not want that my neighbours hate me :)

[@MasterTechMiller]

It's not very loud at all idle. When you give it a wrist full it has a nice note

[@alexalex9971]

@@MasterTechMiller great thank you

[@dmystify1381]

.....👀.🥰🥰🥰💪💯

[@gambietti]

IMHO I think the D&D is over rated

[@uutube243]

No way accurate. Dyno inaccurate. Your gut feeling is more accurate than those numbers.

[@MasterTechMiller]

It's hard to believe it is what it is. The bike only had the CR470 cam swap running the D&D Lowcat 15 days before this video was uploaded. The weather was very, very similar, it was the same Dyno, same tuner (Me) & the results are what they are. It's blown me away!

[@UnrulyRider]

@@MasterTechMiller And the dyno correction factor, also why not in SAE?

[@robertfagan8833]

Wow very surprising but also very interesting. Keep on the producing these videos . I personally love the D&D