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Old Feb 28, 2003 | 12:51 AM
  #1  
87-5.7iroc-z's Avatar
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From: Laurel Hill,NC USA
Car: '87 IROC-Z
Engine: L98 TPI/Possible LS1 swap
Transmission: Auto
Axle/Gears: 3.27
SLP Headers

I know everyone says to get 1 3/4 for a 350, but isn't 1 5/8 still better than stock exhaust manifold? I can get 1 5/8 cheap.
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Old Feb 28, 2003 | 12:55 AM
  #2  
25THRSS's Avatar
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From: Glen Allen, VA
any header is better than stock
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Old Feb 28, 2003 | 08:21 PM
  #3  
91L98Z28's Avatar
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Joined: Jan 2002
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From: California
Car: Z28
Engine: L98
Transmission: T56
traxion went 12.2s on the SLP 1 5/8 headers on a modified L98.

I went with the 1 5/8 headers for my L98. I figure they are good enough well into the 12's and seem to have a bit less clearance problems with the steering shaft that goes into the steering box. haven't installed them yet though.
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Old Feb 28, 2003 | 09:36 PM
  #4  
IROCZTWENTYGR8's Avatar
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From: In a mint Third Gen!
Car: Red 87 IROC-Z28 T-Top
Engine: 5.7 Tuned Port Injection
Transmission: 700R4 Auto
Axle/Gears: BW 9-Bolt 3.27
Originally posted by 25THRSS
any header is better than stock
Yup, and the 1 5/8's are good for a stock or mild 350.

Last edited by IROCZTWENTYGR8; Feb 28, 2003 at 09:54 PM.
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Old Feb 28, 2003 | 09:50 PM
  #5  
ebmiller88's Avatar
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From: Fort Mill, SC, USA
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
A set of Jet Hot coated SLPs is my next mod for my Iroc, but who has the best prices? Anyone purchase a set recently? I will be looking within the next 2 months.

Thanks...Ed
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