Exhaust

mikesc

Registered User
Could someone tell me why upgrading the exhaust by installing 2.25"+ downtubes and exhaust pipes on these cars without porting the exhaust manifolds helps? Getting better (less restrictive) mufflers and resonators makes good sense, but I measured my exhaust collector and it appeares to be right at 1.75". This being the case, it seems that the restriction caused by this is still there even if you do change the d/t's and pipes....Does this make sense?

Thanks,

Mike

Any opinions on X-pipes? Does it change the sound when using aftermarket (Dynomax) resonator?
 
I see what you're getting at but experience shows that a restriction with a restriction behind it flows less than a restriction alone. For an example pucker your lips and blow while getting ever closer with a finger. Even though your finger isn't plugging your lips it still starts restricting flow when it gets close enough. The exhaust on your cars blows much harder.

Vernon
 
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