Full catless downpipes safe? Q50 Q60 RED SPORT

[@LearningFast]

Boost good video. However, you got the explanation of the Catalyst wrong. You said it reduces the CO2 emissions. It actually increases CO2 emissions. It decreases C0(Carbon Monoxide), unburned Hydrocarbons, and NOx emissions by converting those byproducts of combustion into CO2.

[@alexishernandez9607]

So is catless 3” better than catted like realizability ?

[@Jay-pi7gf]

So many people overspinning their turbos - replacing turbos is not cheap!! Thanks for posting.

[@itz_damian3448]

What cause that

[@Jay-pi7gf]

The parts of the q50/q60 exhaust create a back pressure for the turbos. This back pressure acts like a safety for turbo RPM. (Preventing them from spinning so fast that they damage themselves. ) With straight pipes, the turbos can spin much faster than designed - causing excessive wear and possibly early failure. 1 high flow cat for each exhaust line should keep you in the good range. If you are going to go full catless I would recommend not going over 2.5 inch pipes for the best balance of reliability and power. Also - when your turbos are over boosting, that is a big cause of “slow shifting”

[@bradleylewis9657]

@@Jay-pi7gf this is why u should be smart and run a catback and catted dp instead of straights

[@SDAirsofter]

Hey guys Q60RS owner PLEASE PLEASE PLEASE do your mods right. Don’t cheap out on ANYTHING. Building a car takes time and doesn’t need to happen overnight. Unnecessary things like BOVs and Catch cans can save your entire builds life. I’m about $7,000 deep on mods that aren’t installed yet because I want reliability

[@bradleylewis9657]

bro says get a bov for a vr30 but AMS and legit every company that makes performance mods says to not run a bov which makes sense since it doent have a bov from factory

[@tariqzraika2003]

I’m doing a 3inch ams full down pipe with electrical cut outs . Of course ima get a tune right after .

[@-Antt.]

I’m getting catted full downpipes but no tune😅, still need to get everything else

[@sa-iu1cc]

@@-Antt.don’t get anything until you have the $ to do it all. risking over boosting and turbo damage if you don’t have a tune, and you can’t have a tune (ideally) without heat exchanger at the very least and then catback and intakes

[@-Antt.]

🥲 I got the full catted downpipes already installed, i just ordered an aam heat exchanger. I’ve been driving the car light, going easy on the gas

[@bradleylewis9657]

@@-Antt. downpipes should be installed last.....better to protect the turbos with supporting mods then add dp

[@sstangsstang1338]

Going catless will NOT alter the O2 reading used for ATF ratio. There are two sets of O2 sensors per side, one sensor before cats and another after cat. The computer uses the one pre-cat for the ATF reading, and the last one to monitor the catalytic's performance. I do not agree with 90% of the rest but I won't get into it. Sad to see how people believe anything they watch online.

[@JeremyLifts500]

so iyo are catless safe?

[@On3_media]

Full downpipes gang! But, if you do full DP then you gotta accept the possibilities of the worst happening 😅

[@51studmufins]

Isn’t a good way to work around this problem a actual set of BOV like hks per say over the oem recirculating bov

[@On3_media]

@@51studmufins doesn’t stop the turbos from over spinning or maxing them out and not being in the efficiency range.

[@51studmufins]

Noir. TM agreed , I meant for the boost spikes. I’m planning on going Catless fulls but def getting tuned right after install and pairing that bov to hopefully save this set of turbos (bonestock 16 q50 vr30 started lightly blowing white smoke took to dealer under warranty and had both replaced) so thankfully I’m going into tuning with a fresh set. (Also car had 52k miles when turbos went)

[@erinhakopian1025]

what if its cast full high flow catted downpipes does it not let the turbos over spin?

[@BangMusikBeats]

Definitely rockin with the channel bro, steering me in the right direction with my new Q.. Subbed and just copped some Swag 👌🏾

[@FlmzyQ50]

Some swag huh

[@justinshannon9801]

Boost took us to science class what about a fully catted down pipes would you still need a tune

[@BoostInMotion]

I talked about that in a previous videos of when I receive my 3 inch downpipes. Depending on the cell count you should be OK. AAM which is a 400 cell count. I still have to test out them in the upcoming video.

[@extraterestrial]

Good info. I was thinking of going full catless until I saw that post on the forum that AMS took down their full downpipes because of new outrageous fines for buyers and sellers So I guess I'll go high flow now if those are still available

[@tannerfox6790]

Wym fines?

[@jayvalere6369]

Love this info

[@virtuallyrs3673]

Are you saying all this can happen without tune? Or you’re saying in general full down pipes wear down your engine? So with a tune it’ll be fine?

[@Abel3270]

Are boost spikes because you don’t have a tune?

[@Lastkingdavid23]

So off knowledge and experience would you consider running full down pipes On a q50 with no plans of getting a tune anytime soon?

[@LeadDevelopAchieve]

removing a lot of the catalyst material.. how about ALL.. its FULL catLESS, also your description of how a catalytic converter works was not accurate.

[@Genesis_twitch_]

Am I good without a tune if I get rid of the little cats under the car?

[@Malco.S]

Boost, coming to LA soon??

[@KrypTiKEquinox]

I got full catted downpipes by AMS, temporarily until I get tuned will it be fine compared to being catless?

[@jimper6417]

Don’t drive that car hard until tuned you could run into problems WOT with no tune and being full catless

[@GAZAATHUGG]

Don’t it’s damage the turbo seal ? With full down pipe

[@BoostInMotion]

Over time because of turbo surge

[@abbas674]

This is why you buy bigger turbos when they go out I am catless on my cars no issues at all

[@Drewyable]

Boost, can I run JB4 on AMS's High Pressure Fuel Pump/ kits?

[@BoostInMotion]

No point unless your tune

[@Drewyable]

@@BoostInMotion subbed. would you recommend Burger Tuning Flex fuel kit, or just go for AMS and tune for e85?

[@BoostInMotion]

If you’re gonna run full e 85 the fuel it kit is good

[@extraterestrial]

@@Drewyable like boost said don't run the hpfp without a tune. The car runs like shit on the stock tune with it. Personal experience 😅

[@skyline_q50s86]

Can you pass the emission test with full catless downpipes

[@ajmeyers9433]

Can I run full catted down pipes with no tune

[@BoostInMotion]

Yes

[@LaKuan]

This kindergarten for race car kids

[@NathanielZ-v3s]

I have a vr30 q50 with a ark catback , what is the bad things will happen if I put on a ams ldp with out a tune?

[@DHV_13]

Did you put ams Ldp?

[@Wavy_be_mxbbin]

Hi boost i have a question i have lower downpipes and i have a jb4 currently with the fuel wires and all that and i just picked some upperdownpipes you think anything will happen ?

[@BoostInMotion]

I don’t think you should install upper downpipes.

[@BallisticBacon11]

what about high-flow cats? will i need a tune for those aswell?

[@ryandeluna1750]

Would doing just LDP be better?

[@BoostInMotion]

For the earth yes

[@HydratedBeans]

The biggest reason I don’t wanna go full catless is because I don’t wanna fuck up my lungs when I’m stuck in traffic.

[@kamalbrown7204]

When you, say boost spikes are you meaning boost creep?

[@BoostInMotion]

No when you change gears change the boost spikes because no diverter valve

[@jaydubb71]

@@BoostInMotion every AUTOMATIC turbo car will spike on FULL THROTTLE gear change, unfortunately. Examples... First... Back in the 90s, my boy had a MKIII Supra. We installed an HKS boost controller (EVC2 or 3... Can't remember). Flat (normal) shift didn't cause a boost spike but POWER SHIFTS did. Like 2 to 3 psi IIRC. Second example... I'm tuning a 88mm turbocharged 6.2 liter Chevy Trailblazer SS. 8 to 9 psi. When the gear changes at WOT (wide open throttle), the boost spikes to 14 (YIKES!!!). Torque management is probably exaggerating the problem because of the timing retard on the shift (excessive timing retard raises the temp of the exhaust coming out of the engine and turbos LOVE HEAT) and causing the boost spike to be bigger. I'm thinking of disabling the torque management on the TBSS but I'm sure this can't be done on the Q50 without breaking something. Oh... Third example... Same buddy with a MKIII Supra had a Grand National. Same deal. Boost spikes on shifts. And a diverter (blowoff) valve only opens when the throttle is closed and vacuum is applied to the diaphragm in the blowoff valve. Unfortunately, the Q50 doesnt come with one from the factory. I think a blowoff valve MIGHT help extend the life of the stock turbos. Life, not performance. Lol

[@abbas674]

Just go full catless down pipes and after tune the car for catless

[@deerock8545]

Bov help with boost spikes?

[@51studmufins]

That’s what I thought too

[@2FittedBW]

🙌🏾

[@mikeramia]

Please drink water before video .. love the videos

[@urielperez9045]

Boost, can I run LDP cat-less without a tune? Also, is JB4 a viable “tune” for LDP cat-less

[@SDAirsofter]

I would NOT recommend this, this will probably result in a higher chance of blowing Turbo Seals. If you wanna mod your car, you have to do it right. I recommend at least a Tune AND BOVs with downpipes

[@abbas674]

No you need a tune in any car when you remove the cats

[@jessesilva5267]

Do all full down pipes cause cel ?

[@BoostInMotion]

Only catless

[@thelaosho]

Think it’s to late to save the earth tbh

[@Malco.S]

Hit the like button!!

[@saadimran8403]

Will PLM upper downpipes put check engine light on

[@BoostInMotion]

Yes

[@pontiacgto20061]

Can i run full dowpipe with jb4

[@BoostInMotion]

Yes full catted

[@pontiacgto20061]

@@BoostInMotion what brand you recommend??

[@BeastedCustoms]

I’m first huh?

[@jayvalere6369]

Second 🔥🔥🤗

[@BeastedCustoms]

@@jayvalere6369 dang you got me this time!