Not engine drive ability problems, smooth idle. Engine drive ability problems, semi-rough idle. All persons considering purchasing these camshafts should be aware that vehicles subject to emission testing should be aware camshafts do change emission. We do not guarantee your vehicle will pass emissions in your state. We do not have emission specifications on V6 12V engines with our cams installed.
Buyer assumes all risk associated with vehicle emissions.
Unfortunately we do not have exact dyno horsepower gains for the cams we offer. The throttle body modification for the Audi 2.8ltr V6 12V consists of boring the primary venture to provide more airflow at lower RPM's. We feel this is the most significant performance improvement for the dollar you can spend on your V6. Throttle Body Mod. The last thing you want to go out in mid winter is your heater blower motor.