Headers on a 3-valve

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Mar 27, 2006 | 08:45 PM

Nine Ball

Thread Starter

LS1Tech Co-Founder

Joined: Nov 2001

Posts: 33,009

From: Houston, TX

Headers on a 3-valve

How much improvement (track or dyno) have you guys seen with headers on a 3-valve GT?

Thanks,
Tony

Mar 28, 2006 | 12:35 AM

K Bo

Launching!

Joined: Dec 2005

Posts: 252

From: Houston, TX

it seems on a dyno typical gains are about ~25hp, not 100% sure about tq.

Apr 8, 2006 | 05:30 PM

WILWAXU

TECH Senior Member

Joined: Nov 2001

Posts: 14,384

From: Sasebo, Japan

How much room is under there? Will it be PITA like changing the headers on the 99-04 cars?

Apr 12, 2006 | 03:27 PM

383ss

10 Second Club

Joined: Mar 2002

Posts: 2,894

From: Kansas City, KS

from tests I've seen shorties are pretty much worthless. less than 5hp gain.

I'll be putting some longtubes or mac mid-length on the 05 soon, I hope. I'll update when I do.

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