what kind of gains can i expect?

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Feb 15, 2007 | 08:08 PM

indigo28

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From: Lewisville, Tx

what kind of gains can i expect?

the car is a 1999 automatic z28....usually what kind of gains can i expect from adding some pacesetter long tubes, and ory? does a different brand really make a differene if they all serve the same purpose? i know the quality on some are better but what kinda numbers can i expect? only mod on the car is slp loudmouth catback, no cats

Feb 15, 2007 | 08:09 PM

Tainted

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From: Indianapolis

well kooks and QTP have a slight hp advantage but not enough to really matter. with LT, ORY and a tune expect around 40ish

Feb 16, 2007 | 09:54 AM

FU_I_AM_UltraZ

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From: New Port Richey, FL

Quote:

Originally Posted by indigo28

sure they same purpose, but....
the only effects from exhaust systems are:
1. diameter, for stock LS1 with bolt-ons, i wouldn't go larger than 3 inch system.

2. bends in pipes, smoother the better.

3. cats. having a complete after market exhaust with LTs, hi flow cats give you the proper backpressure needed for a stock bolt-on LS1. if you've upgraded your cam and/or heads and don't have to worry about inspection, then go with an ORY.

for an A4 LS1 tuned, you'll gain about 35 rwhp.

Feb 16, 2007 | 10:52 AM

lsx24

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From: NC

You'll gain about 30 rwhp with headers and ORY. Most all headers will dyno close to each other, the difference in price is mainly the material they are made out of: stainless steel or not stainless steel.