Need some insight on an exhaust idea...

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01-31-2007, 06:12 PM

#16

Whitey13

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Join Date: Jan 2007

Posts: 110

I know, I should. But I gotta make my presence known

01-31-2007, 08:42 PM

#17

Critter

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Join Date: May 2001

Location: fort worth/burleson Tx

Posts: 1,513

Quote:

Originally Posted by Whitey13

Yeah, you're right. But there is a guy I know with a 95 z28 with 4" td's. No cats or mufflers, straight through. I should get a pic for you guys to see. There is a lot, and I mean A LOT of pinching and tucking going on. He said he has 4 inches of clearance at the lowest part of the system. Don't know how he pulled that one off. He's got it dynoed in at 710 horse and 785 ft lbs of torque. You'd think he has some sort of backpressure issue even with that power...

that guy is a moron, a single 4 inch pipe flows like 660 hp now he has way too much money in his exhaust and no ground clearance.

2 1/2 is the way to go.

A 2.75” (stock) single system is good for a 310hp engine with zero loss…
A 3” Single system is good for a 370hp engine with zero loss…
A 3.5” Single system is good for a 503hp engine with zero loss…
A 4” Single system is good for a 657hp engine with zero loss…
A 2.25” dual system is good for a 457hp engine with zero loss…
A 2.5” dual system is good for a 513hp engine with zero loss…
A 3” dual system is good for a 812hp engine with zero loss…