How much horsepower should i expect from headers?

Reply Subscribe

Thread Tools

Search this Thread

06-11-2007, 11:53 PM

Ryan

Senior Member

Thread Starter

Join Date: Jun 2007

Posts: 110

How much horsepower should i expect from headers?

I have a 2002 mustang gt with a stock engine. About how much difference would i see in horsepower if i added headers? And also would it make the engine louder?

06-12-2007, 01:02 AM

chatmanv6

ChatmanV8

Join Date: Dec 2005

Location: fl, brooksville

Posts: 103

longtubes will get you the best gains, and yes it will make your car louder..i know because I have them on my 2002gt...my 3rd gear pulls so much harder with them...

06-12-2007, 09:20 AM

r3dn3ck

Wowbagger hates me too!

Join Date: Nov 2005

Location: Magrathea/California

Posts: 9,865

10-15 with longtubes and a full catback. 2-3 wtih shorties. 8-16 with midlength's by all reports. it's not worth the 500 bucks for the headers and the 800 for the install.

06-12-2007, 12:07 PM

Ryan

Senior Member

Thread Starter

Join Date: Jun 2007

Posts: 110

yeah i would want to get the longtubes but i guess there too expensive for me rite now.

06-12-2007, 05:57 PM

bassman97

blank

Join Date: Jun 2006

Location: North Jersey

Posts: 2,451

Expect even more impressive gains w/ a set of cams. However, if you want them, do it yourself, this way you don't need to go on welfare afterwards.

06-12-2007, 10:50 PM

dookie2365

has no legs

Join Date: Apr 2006

Posts: 472

wtf i hate wen ppl say parts arent worth it

horsepower is horsepower

06-13-2007, 11:54 AM

El Diablo

Senior Member

Join Date: Mar 2006

Posts: 143

You may gain hp but you loose torque. That's why it should be one of your last mods before you add a power adder or cams.

06-13-2007, 09:12 PM

gotMACH04

Senior Member

Join Date: Aug 2006

Location: Columbia,KY

Posts: 770

i did LT's as one of my first mods and yes their was a little low end loss but it does pull harder through the upper rpm's, no regrets here for $300 install...

06-14-2007, 01:10 PM

El Diablo

Senior Member

Join Date: Mar 2006

Posts: 143

Yeah, but a normal install for labor is $400 to 700 installed plus $500 for a good set of headers. I would save up for a power adder before I did that.

#10

06-14-2007, 01:41 PM

bassman97

blank

Join Date: Jun 2006

Location: North Jersey

Posts: 2,451

I don't know how you guys noticed a loss down low but I'm getting better mileage both city and highway running below 2500 rpm which means there can't be that much that is lost. Maybe the addition of cats helps out?