What Next?
 

I have the SLP LM 2 system and a MAC intake (fendermount) on my 2004 gt so far...
The season is growing short and I am going to put one more upgrade on my car...Which am I going to have a more noticeable power increase with?
A 70mm Throttle Body and Plenum or a Pulley Kit?
I also have a Hurst Short Throw Shifter on order, very excited to get that!