Thread: SPF Side Pipes. Pls Help
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Old 05-11-2012, 10:58 AM
jhv48 jhv48 is offline
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Join Date: Aug 2007
Location: Carlsbad, Ca
Cobra Make, Engine: SPF 2932 with 438 Lykins Motorsports engine. Previous owner of FFR 5452.
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The stock sidepipes already strangle that engine.

Why do you want to further strangle it? The stock SPF muffler is a maximum 2" in diameter. About perfect for a mild 302. Your engine needs at least 3" to even begin to breathe like it should.

Why have that big horsepower motor if you won't let it breathe?
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