I was searching around over at Club3g for an underdrive crank pulley. I found this post

http://www.club3g.com/forum/showthread.php...t=underdrive+v6

Which goes to say that with an ECU reflash (changing a few values) that the ASP underdrive crack pulley (from what I heard was actually really good) will work without throwing an SES light.

Anyone know anything more about this. Underdrive crank pulleys usually give pretty good gains.

So for all you v6 guys that want a Lightweight underdrive crank pulley for the v6 that will not throw a code, you may just get one.