Does a Catless Downpipe Make More Power Than a Catted Downpipe? Audi B9 S4

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When you're making nearly 600hp in an Audi B9 S4, do you need a catless downpipe to make sure you are getting every last drop of performance? In this video I did a back to back comparison of a catless downpipe vs a catted downpipe while using a TTE810 running Integrated Engineering Stage 3+ 93 octane software. The results were TRULY unexpected! Enjoy!
All hardware installations are performed by Reiter Performance. For more information on their services please reach them at info@reiterperformance.com or check out reiterperformance.com/ for more details
All dyno testing is performed at Racing Greed located at 1650 Broadway St Unit 110, Port Coquitlam, BC V3C 6P8. They can be reached at rg@racinggreed.com or check out www.racinggreed.com/ for more details.
For any business inquiries please email me at adam@vancityaudi.com
Website: vancityaudi.com/
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#audi #dyno #performance

Опубликовано:

19 фев 2023

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Комментарии : 353

@VancityAudi Год назад

SAVE MONEY ON YOUR INTEGRATED ENGINEERING PURCHASES BY USING THIS LINK:

@clos2070 Год назад

Thanks man, been running the Uni DP to pass emissions here with success. I very much appreciate all the time and effort you put into your research and production.

@chriswise1232

Even i the catless was 2-3hp ahead, i dont want my vehicle to smell like crap. Thanks for the real original content, not just internet hearsay 👍

@besnikseferi1809 Год назад

Hats off to you man for doing the work most guys want to know before trying it for themselves to find out. It’s a lot of work and time spent for those videos 👏🏻

@SlipAngleG70 Год назад

Love it when assumptions and speculation is disproven. Thanks for putting in the work to show the actual results.

@WeaponBD Год назад

Good content man! Got my first audi and now i'm hooked and your videos are great

@donterpstra4579 Год назад

So awesome! Thanks for all you do for the community.

@EddySVT Год назад

Bro I’m so hooked on your videos so impressed!! Can’t wait to get a b9 keep up the great content new subscriber ✌🏼😎

@RickyRacks909

GOOD WORK BROTHAA! Just got my HFC from CTS Turbo NOW waiting on my stage 2 from IE 🙌

@Mark_Isaev_ Год назад

Wow, that was surprising results. Thank you Adam!

@Henry11111 Год назад

I love all of the data and testing! I've never thought the catted would make more power lol. Thank you again for an amazing video!

@One_Guy Год назад

so glad you're doing this video and putting the facts out there.

@elijahallen Год назад

Thanks for this, I always assumed this just from running both but seeing it in your test makes me happy I went with a high flow cat on my 8Y RS3.

@jdemara Год назад

Thanks Adam! Great comparison backed by data

@shinymike4301 Год назад

Wow, back to back comparisons, that is hard to find, at least on cat vs catted dp, well done! Tells us a lot. I feel better about my catted dp now. Wonder if the de-cat flowed more air, could the tune be changed to take advantage of that and make more power? Just asking. Looks like the bee-hive cat is very well designed. Guess a hi-flow catted is all we really need, unless we're trying to make 800+ hp.

@ThesGt Год назад

great stuff as always with this channel, i was about to buy a downpipe for my b9 s4

@SportGuyDMV

I installed the vrsf catless downpipe on my 435i tuned it to stage 2. Talk about performance gain. Went from 300hp to 360hp. So fun to drive. But be aware when you get the catless dp the smell is pretty strong at least for my car. I see a lot of RU-vidrs down play it but the smell is strong. And if your state does emissions testing you're obviously going to fail. So if it's your daily and you put a catless dp you'll run into some issues. Just something to think about. I think I will save up and get a high flow catted dp in the future. But going back to stock dp and flashing it back to stage 1

@Mrgiannyx3 Год назад

Man b/c of you I will be buying a S4, thanks for all these videos!

@quickhandcam8596 Год назад

I bought a used chinese catless downpipe for $350 and it fit great, quality was great, and sound is awesome. I didn't buy it for "more power" just wanted something cheap to get me to St2 power (and we don't have emissions where I live).