2015 B8.5 6MT S4 going Integrated Engineering Stage 1

[fstr n u]

[fstr n u]

[fstr n u]

Full custom 2.5" exhaust - JHM DP HFC Integrated Baffles to Magnaflow mid x-pipe resonated muffler to Corsa Mufflers revving - 1st start

https://youtube.com/shorts/utjJMuHXcAs?feature=share

[fstr n u]

next up cold start
Revving when engine warm
Then a drive by

[fstr n u]

Slow acceleration exterior:
https://www.youtube.com/shorts/5Ivx46RnAoo


Full throttle acceleration exterior:
https://youtube.com/shorts/cwEiMpsjEgc?feature=share

[fstr n u]

Full throttle exterior exhaust sounds with this custom setup quick clip...first link didn't work:

https://youtube.com/shorts/_Q8IxLL60IY?feature=share

[fstr n u]

Link to my S4 drifting on a closed ice track/course for a Winter Driving Experience. Supercharger and exhaust noises are the bomb!

https://www.youtube.com/shorts/o2VxnuaBULE

[fstr n u]

Quarter mile run in my stock 2015 S4 6MT so we could get a baseline on performance and elevation prior to mods:
https://www.youtube.com/watch?v=LPaMRDFFqr4

[fstr n u]

A different video taken by my son horizontally of the S4 drifting and playing on the closed ice course...though the TCS is turned off...it still finds a way to kick itself in every so often but this was fun regardless. Here is a 70 ish second clip of the Audi sliding around and boasting these fun supercharger/exhaust sounds.

https://www.youtube.com/watch?v=wLuJ61j1ehE

​​​​​​​

[fstr n u]

an interior POV clip of the Audi last year displaying the supercharger sounds with the stock airbox removed, CTS Turbo CAI, Upper SC Pulley, IE Stg 2+ tune, studded tires and partial exhaust....enjoy the 26 sec clip

https://www.youtube.com/shorts/ErqM5IchTXY

[fstr n u]

With our Canadian winter just about over...it was time to install the summer rims and rubber though we may still see a snowfall or so.
Here's a quick clip for Audi fans. This is good time to inspect brake rotors, rust, carnage, rubber for nails/bolts and other sharp pokey things stuck in your tires. Then cleaning of the winter wheels and putting them into storage.

​​​​​​​https://www.youtube.com/shorts/-IYm4R4-RSU

[fstr n u]

So shortly after the exhaust install I had a sporadic ORANGE check engine light come on.
OBD II codes were:
P013a
P013c
P2271

The light would come on for a couple hundred kms then go out....then come back on. No drivability issues or anything...just an annoying light.* I have been researching and talking to tuning companies, etc and thought we would start with replacing the 76.000km rear 02 sensors that are plugged into CTS Turbo O2 Sensor Defoulers.* As of now the dreaded annoying light is finally out. The mechanic we spoke with mentioned the driver side one seems to have been more heat affected than the passenger which speaks to the code I pulled:* 02 Sensor Signal Stuck Rich - Bank 1 Sensor 2