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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 December 9th, 2019, 22:41   #16
Join Date: Jan 2019
Location: YVR
TDI(s): C7 A6

I have the Eurocode transmission insert and ECS rear diff inserts in my A6 (along with Eurocode swaybars, metal S6 swaybar links, Malone Stage 2). The transmission mount gets rid of most of the slop. The ECS poly rear diff inserts got rid of a bit more and didn't create any noise or hum. Highly recommended and I guarantee that you won't have any regrets.

My understanding from looking over all the whine and noise complaints lead me to believe that it was the lower diff mount insert that was the cause.
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Old December 13th, 2019, 08:20   #17
Veteran Member
Join Date: Jul 2004
Location: Burlington County, NJ

I just purchased the exact same set up, minus the sway bar/tune. I plan to get the H&R rear sway probably (once i save some more funds) and just replace the stock endlinks with fresh OEM's. I drive like a grand pa, with very few instances of spirited driving.

I will keep you guys posted.
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Old February 7th, 2020, 14:35   #18
Veteran Member
Join Date: Jul 2004
Location: Burlington County, NJ

Hey guys,

Car: 2016 A7 TDI facelift, non sport suspension, 52000 miles

So its been about 2 weeks since ive done the following:
- replaced transmission mount insert (Eurocode)
- replaced bottom differential mount inserts (Eurocode)
- replaced top differential mount inserts (ECS)
- replaced rear sway bar upgrade/endlinks upgrade (H&R) (OEM)
- Muffler chop to straight pipe

Indy shop charged $180 for inserts and the sway
Muffler shop charged $200 for muffler chop and straight pipe
Parts were probably $550 (that includes replacing hardware bolts for sway bar)

Inserts - The car feels noticeably different. The so called "slop" is 90% gone. The car shifts faster even in the cold. Yes in the cold!!! I was very surprised at this. The car feels like more power is getting transferred to the wheels and you can feel the efficiency of the inserts if that makes sense.
The odd thing I noticed is that I've picked up about 2-3mpg since doing the mods solely based on the computer mpg calculation in the last 2 weeks. The temps in NJ have been pretty constant and I've driven exactly the same speed and route to work.
No additional vibrations, no additional noise, no hum. When I turn the car off its actually does not shake as much. Is this mod worth it, YES without a doubt.

Rear sway - The H&R sway for me adds the perfect amount of clean up for the rear suspension of the A7. It is a non adjustable bar.
Exits off/on the freeway are handled with way more confidence and authority. It does not add any harshness to the ride quality. I replaced the end links with OEM ones but the originals were just fine to be honest.
Is this mod worth it, absolutely the handling of the car is way more refined and planted.

Muffler chop - There is more throttle response when you press the go pedal, the car does not sound any louder when cruising at 65mph. It does not add much grunt sound. Im hoping that the car breathes a bit better and maybe keep the turbo cooler since there is less restriction. I honestly have no clue if that is true or not. Would I do it again, I don't know, not sure really.

If you guys have any questions please feel free and ask, I hope this post can help others who have a C7/C7.5.

Other Mods:
- Aluminum pedals
- Led interior light conversion
- Apple car play integration (OEM)
- Cubby pockets for door trim
- puddle light "quattro" upgrade

Last edited by bahiaeternal; February 8th, 2020 at 03:32.
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