What Is That Noise!!!

[Grease]

I took off the pipe from where it drops from 2 1/4 to 1 7/8 all the way back.. WHAT A NOISE>> But hay it sounds good at WOT..

Seems to be a little faster to hmmmm...

[FearThe4Doors]

yeah, just gutting the cat alone gave me 2psi. Plus the pipe itself is soooo restrictive!