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Batman · 01-15-2009, 11:23 AM

To backtrack to the cut-out I also did back to back runs when I had my dual cut-outs. The cut-outs closed with Magnaflow exhaust beat the cut-out open by at least 10HP to 3900RPM, then the cut-outs open peaked a whole 2 HP higher. That was also backed up at the track by a loss of .2 and 3 MPH with the cut-outs open Vs closed, and this was on a heads/cam car making over 500 at the flywheel. I think on a pure race car with stupid power you may see a gain but for your set-up just get a good cat-back/Y-pipe and be done.

01-15-2009, 11:23 AM	#34
Batman 11 Second Club Join Date: Jan 2005 Location: Fishkill, NY Posts: 1,278 iTrader: (1)	To backtrack to the cut-out I also did back to back runs when I had my dual cut-outs. The cut-outs closed with Magnaflow exhaust beat the cut-out open by at least 10HP to 3900RPM, then the cut-outs open peaked a whole 2 HP higher. That was also backed up at the track by a loss of .2 and 3 MPH with the cut-outs open Vs closed, and this was on a heads/cam car making over 500 at the flywheel. I think on a pure race car with stupid power you may see a gain but for your set-up just get a good cat-back/Y-pipe and be done. __________________ -Nick 9/11/01- Never Forget 2002 Pontiac Trans-Am WS6 # 206 Chasing 10's 469RWH/437RWTQ 11.05 @ 123 Last edited by Batman; 01-15-2009 at 11:24 AM.