Aftermarket H-pipes

berns82 said:
I currently have the SLP LM 1 w/ the catted Prochamber. Sounds good, but I need louder/deeper. The PC is a very mild sounding mid pipe. Im probably gonna go w/the o/r H.

Have a sound clip? I am unable to find anyone with an SLP Loudmouth Cat-back + MAC Prochamber.

Do you think the regular MAC H-pipe with cats will be louder than the Pro-chamber?