The primaries I measured on the ASP are 1 7/8" I believe. I'll be working on the exhaust this weekend I'm using kteller piping and Burns stainless muffler. Muffler weighs less than 3lbs.


The aftercooler core is one of the first ones ever and so far it has been good. Car has high 12's in it just 3rd gear is so hard to hit perfectly, that most times I have a little trouble getting it in, so I lose a little time.