Procharger d1 -cutout or catback exh

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Oct 15, 2007 | 04:30 AM

MR_SB3

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Procharger d1 -cutout or catback exh

HI
i want to now what the best electric cutout on my stock exhaust or catback?
in ls1 camaro 346 ci 15 psi Procharger d1
thanks.

Oct 16, 2007 | 04:58 AM

EPP

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I'd go with a good catback, and then get the car tuned. A cut-out plays havoc with tuning, as it changes the tune dramatically depending on whether you tuned it for being open or closed. It could then either be too rich or too lean when the cut-out is in the opposite postion that it was tuned for. Bob

Oct 16, 2007 | 08:44 AM

ChevyChad

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From: Savannah, GA

So if you tuned with the cutout closed with the exhaust going through the cat-back, then if you opened the cutout afterwards would it run richer or leaner? I've always wondered this...