Mod Motor Tech Forums - Headers on a 3-valve

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Nine Ball

03-27-2006 08:45 PM

Headers on a 3-valve

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

Thanks,
Tony

K Bo	03-28-2006 12:35 AM

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

WILWAXU

04-08-2006 05:30 PM

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

383ss

04-12-2006 03:27 PM

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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