Thanks for the info, i'm planning on buying a pulley also...

 

It hasn't effected my cars noise either.

I drove the car around a bit last night... I couldn't really notice much difference but a friend of mine took me for a drive in his ralliart because he just put a new simota intake on it. His car only has a cat back exhaust and the intake and I noticed that my car has quite alot more go! It revs quite alot quicker. This is due to the headers as well as the pulley though.

I am taking it out tonight for a proper drive with some friends who drive a WRX and a Mazdaspeed 3.

 

I've heard that the underpulley works best with a cold air intake, because you get the gains at low rpms from the pulley and the gains with high rpm with the CAI, is this true, and does anyone have that set up?

 

I have a SRI system on at the moment that is heat shielded. I was thinking about taking the SRI off and putting the stock box back on for a short while, I might do that tonight. I'll let you know about the difference I feel.

 

Glad that you like the Pulley. Before I was with PPI I came out with that dandy product. You don't need to line the timing marks up when you put this on. It can only go on one way.

The pulley should take away the low end that you lose with a CAI. It has also been proven to cut a tenth off the 1/4 mile.

 

CAI has been off for a few days now... I've definately lost the high end torque that it had. The CAI works well with the pulley...

 

yes it really makes up for the loss of low end with the CAI...i have the pully and an injen CAI and they seem to work wonders together...