Hsv shorty headers vs kooks
Thread Starter
Joined: Sep 2007
Posts: 1,637
Likes: 18
From: Sandbox, Kuwait
Hsv shorty headers vs kooks Ok, my current setup is kooks 1-7/8 to 3" headers to 3" cats to wma out at 2.5" then zl1 mufflers.
My plan is to swap to hsv 1-3/4" tri-y headers that have a 2" collector, then 2.5" cats, 2.5" resonators, and 2.5" xpipe out the zl1 mufflers.
The 2" collectors has me worried, or should I be fine?
My plan is to swap to hsv 1-3/4" tri-y headers that have a 2" collector, then 2.5" cats, 2.5" resonators, and 2.5" xpipe out the zl1 mufflers.
The 2" collectors has me worried, or should I be fine?
TECH Fanatic
Joined: Jul 2022
Posts: 1,030
Likes: 387
From: Alaska
I'm going to GUESS that torque increases EVERYwhere under 4000 rpm, horspower peaks earlier, and nosedives after 5600 rpm.
If we are talking about your 415 cubic inch motor, I'll guess you lose 50 peak horspower
If we are talking about your 415 cubic inch motor, I'll guess you lose 50 peak horspower
Thread Starter
Joined: Sep 2007
Posts: 1,637
Likes: 18
From: Sandbox, Kuwait
Its funny how you should say that, I lost 50+ hp goin from 1-3/4 kook headers to 1-7/8.
And I pleaded with Kooks for a 1-3/4" headers but repeatedly they said they have discontinued this and only do the1-7/8
I could go with stainless Works but that's an additional $1500 for a gamble and then I have to redo my exhaust because the kook headers are slightly offset from each other versus stainless works are parallel
And I pleaded with Kooks for a 1-3/4" headers but repeatedly they said they have discontinued this and only do the1-7/8
I could go with stainless Works but that's an additional $1500 for a gamble and then I have to redo my exhaust because the kook headers are slightly offset from each other versus stainless works are parallel
