http://www.goapr.com/news/wp-content/uploads/2013/05/sowo-2013.png APR is a proud sponsor of Southern Worthersee in Helen Georgia and will be on...

Need some help on what this squealing noise might be after changing the TB and all the tensioners, rollers, and all the usual stuff. The TB Kit was...

i switched from a WRX to a b5 S4. ive driven the car for 5k miles from 198k to 202k currently. the car has replaced turbos, valve covers, timing...

Hey guys so looking into buying this s4 locally. It's a 2001 with 101k miles and is a manual car is in very clean condition but there is an issue...

We are in the middle of planning a new heads up class for the Saturday event for you guys. I am trying to get some more people into the head up...

http://www.aptuning.com/images/Vortex/APTuninglogosmall.jpghttp://www.aptuning.com/images/custom/banner_rt.png Here at APTuning we want all of...

Hello, me and my friend scanned my 00 s4 6spd giac chipped stage 2 120k no cel, however the following codes came up 17865 Exhaust Gas Temperature...

i just purchased a 2001 allroad tip, i knew it was throwing a tcc code, but the car seemed to drive fine, well after a bit, the trans started...

APR is pleased to announce our product line from ECU upgrades to Stage 3+ Turbocharger Systems is on sale! March 25th through April 28th ...