Alright so in a few weeks im going to have Heads(MTI stage 2r), Cam G1(228/232 .588/.575 113lsa), QTP HVMC 1 3/4, through a custom Y with cut outs just after the headers and b4 the cats, and the rest out a borla adj cat back...just curious if through the whole exhuast system the car will be ridiculasly loud? im tryin to make it as quiet as possible when cut outs closed. im also gunna use the smaller plates on the borla to see how that is...any ideas? thnx

 

If you have the cutouts, that is basically what the borla cat back is. Change it out with a hooker cat back, has good flow and the sound is mellow with cats on.