Will welded on flow 40 series mufflers on stock exhaust cause restrictive pipe flow?
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RE: Will welded on flow 40 series mufflers on stock exhaust cause restrictive pipe flow?
It wouldn't hurt to get a cat back at all. You'd see some extra ponies from it. But the thing you need to get is a mid pipe. All those cats on the stock mid pipe are restricting a lot of air. You'd get more power and a better sound with a new midpipe.
But if you can afford it, replace the entire cat back and mid pipe.
But if you can afford it, replace the entire cat back and mid pipe.
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Figure8allday
4.6L (1996-2004 Modular) Mustang
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08-22-2015 11:11 AM