Headers and Mid pipe
Thread Starter
Heel & Toe
Joined: Oct 2017
Posts: 17
Likes: 1
From: Riverview Fla
Headers and Mid pipe
C7 Z51 thinking about Hooker long tube headers and Corsa cat less mid pipe has anyone had any problems with these I now quality is supposed to be good but would like to hear from someone that has had them Thanks
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 34,947
Likes: 12,362
From: NE South Carolina
No doubt will need a "Tune" to fix the air/fuel ratio that will be out of range of the existing MAP.
Recall a post by one person who waited because he "didn't have time" and was getting a CEL but disregarded. Car ran lean, had an engine failure and of course his warranty was void!
Assume you do realize the engine warranty is void, after you get tune, as even if reversed it leaves a marker in the cars computer. Dealer is required to download the cars computer to GM for any engine or drivetrain failure.
Recall a post by one person who waited because he "didn't have time" and was getting a CEL but disregarded. Car ran lean, had an engine failure and of course his warranty was void!
Assume you do realize the engine warranty is void, after you get tune, as even if reversed it leaves a marker in the cars computer. Dealer is required to download the cars computer to GM for any engine or drivetrain failure.
Last edited by JerryU; Nov 16, 2017 at 07:42 AM.
Safety Car
Joined: Jul 2001
Posts: 4,609
Likes: 490
From: Houston, Texas
St. Jude Donor '20-'21-'22-'23
Can anyone confirm headers without a tune runs the car lean eough to cause engine failure? I don't disagree with the warranty going void.
How much is the power increase from adding headers? How much RWHP/TQ increase is there with a tune and without a tune, if anyone knows actual dyno results.
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How much is the power increase from adding headers? How much RWHP/TQ increase is there with a tune and without a tune, if anyone knows actual dyno results.
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