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Go Back   TDIClub Forums > TDI Model Specific Discussions Areas > Audi SUVs (Q7 & Q5) and other V6 TDIs

Audi SUVs (Q7 & Q5) and other V6 TDIs Discussions area for Audi Q7 and Q5 TDI (2009+ in Canada & the US) as well as others with the V6 TDI such as the A6, A7 and A8 sedans.

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Old August 16th, 2019, 16:59   #16
Pittdawg
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Join Date: May 2018
Location: Los Angeles
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Quote:
Originally Posted by Daemon64 View Post
Diesel,
That exhaust legit looks sick. I wish I could go this far... Massachusetts requires the DPF, they are super strick on emissions on second to california i think. I've been wondering if getting a catback would do anything because it reduces back pressure a bit, but then i remember that DPF will probably still be the most restrictive. I've been looking instead at anything that will reduce EGT... which ofcourse will help things.... So been looking at the dark side intercooler.... and also this: https://www.kwe-racing.de/Audi/Audi-...ml?language=en
I went with the smog legal Magnaflow catback to stay on the right side of CARB here in Cali myself. I also went with an OEM Audi BITDI intercooler; I'm sure they could still mess with my warranty coverage but I figured it would be less likely if was an OEM audi part.
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Old August 17th, 2019, 08:07   #17
Daemon64
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Location: Salem, Massachusetts
Fuel Economy: 6211 Miles - Avg on Computer 29.4 MPG
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Pittdawg,

I was looking at the magnaflow catback for mine. Do you see any benefits from it besides sound? Just curious as I considered doing this as well.

Thanks!
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Old August 17th, 2019, 12:53   #18
Pittdawg
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Originally Posted by Daemon64 View Post
Pittdawg,
I was looking at the magnaflow catback for mine. Do you see any benefits from it besides sound? Just curious as I considered doing this as well.
Thanks!
I didn't dyno before and after or log egts but I imagine I gained at least a few hp and a slight dip in egts. Other than that, it looks beautiful and adds just a very subtle amount of a deeper tone. If you have all emissions equipment in place the sound increase is very. very subtle but I like the stealth sound.
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Old August 17th, 2019, 14:58   #19
Midwesthick
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TDI(s): A6, Q5, Golf
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Solid setup man! I went to a local shop and had them remove both the rear mufflers but I’m keeping the alphabet soup for the mean time. I found several posts showing the inside of our stock mufflers and those are great at restricting the exhaust at the very end.

$200, new pipes welded onto the backend, more responsiveness and can barely hear a difference. Not mad at all, lol.
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Old August 19th, 2019, 13:23   #20
DieselDeeds
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Originally Posted by Midwesthick View Post
Solid setup man! I went to a local shop and had them remove both the rear mufflers but I’m keeping the alphabet soup for the mean time. I found several posts showing the inside of our stock mufflers and those are great at restricting the exhaust at the very end.

$200, new pipes welded onto the backend, more responsiveness and can barely hear a difference. Not mad at all, lol.


Thanks man! All my drone is about gone. Can only hear it if I cruise at like 75mph- which really doesn’t happen so everything is good.

Sounds like you have yourself a good setup also. I watched a video with a guy who chopped off his mufflers, dyno’d pre and post, and picked up like 17hp and 25ft/lbs or something. I remember when I removed my mufflers after my delete, I picked up another ~2mpg. Have you noticed anything with yours since you’ve kept your dpf but hacked the mufflers off?


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Old August 19th, 2019, 14:25   #21
Midwesthick
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TDI(s): A6, Q5, Golf
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Originally Posted by DieselDeeds View Post
Thanks man! All my drone is about gone. Can only hear it if I cruise at like 75mph- which really doesn’t happen so everything is good.

Sounds like you have yourself a good setup also. I watched a video with a guy who chopped off his mufflers, dyno’d pre and post, and picked up like 17hp and 25ft/lbs or something. I remember when I removed my mufflers after my delete, I picked up another ~2mpg. Have you noticed anything with yours since you’ve kept your dpf but hacked the mufflers off?


Sent from my iPhone using Tapatalk
I saw a couple of videos out there like that so I figured it was worth the $100 at a local muffler shop. I am extremely pleased with the results. There is such a small difference in exhaust tone it's almost impossible for me to hear. However, the pickup across the powerband has been quite impressive, more than I anticipated. I also heat wrapped my downpipe in the engine bay last night and there is a noticeable difference in heat under the hood.

I did just hook up my Chipwerke box but haven't driven that around just yet. I am hoping I have better luck than other people who own 14' A6 TDI's.
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Old August 19th, 2019, 18:53   #22
Daemon64
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Oh this is awesome. Im glad to see there is a difference there. Mass requires mufflers so I will likely do the magnaflow.

Last edited by Daemon64; August 19th, 2019 at 20:09.
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