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FarmerWE4
07-17-2007, 10:32 PM
currently using a kirban 3" downpipe. Fits the stock elbow horribly. Does anyone make a gasket of some sort? Was told by kirban to seal with high temp permatex which lasted about 10 miles. I've also heard that a downpipe can cause false knock. Is this due to poor fit, rattling, etc.? who makes the best downpipe for the money?

1986GN
07-18-2007, 12:12 AM
just got a down pipe from spx-7 3.5 SS tery h style nice piece!

Keller
07-18-2007, 02:20 AM
I've also heard that a downpipe can cause false knock. Is this due to poor fit, rattling, etc.?
That is the only reason I can think of.