Quote Originally Posted by rolyat View Post
Wow... did I get some attention! lol

My car was hitting 10* of knock at times... it was slow as heck (due to timing being pulled) and about to chip a piston. My mods in my sig haven't changed... A stock pulley would just be a waste of money and time putting on... My mods easily support a 3.4, I just need to get it scanned and get the problem fixed (I'm guessing tune issue or lack of fuel).
I have the same knock/gutless problem, and similar mods. I have DTC P0134 (front 02 no activity) which is hopefully the cause. Thats probably a result of extending the 02 harness.

Will be fixing this when my life allows me.

I feel its still safe to drive without boost, with the SC belt on.