BUICK468

What type of gain can be expected on an A4 car with a programmer, air box and catback exhaust?
Thanks

2001CamaroGuy

iTrader: (6)

The ASP pulley is about half the weight so the engine has less to spin up and the mechanical advantage makes it easier for the engine to turn the accesories over.

I installed the ASP pulley and the "over drive" pulley on my MM6 car. It made my engine rev faster and thus pull harder.