How much of hp gain from headers?
08-07-2017, 02:44 PM
#1
Thread Starter
Join Date: Aug 2017
Location: Pennsylvania
Posts: 6
How much of hp gain from headers?
Hey guys I have a FBO 04 GT with stage 2 hitech cams. Put down 300whp 336TQ not really where I want to be. My tuner (who is apparently one of the best in the country) thinks I would gain 30-50 WHP with longtubes. Was wondering if anyone has seen anywhere near a power gain like that with similar mods. Plz get back to me thanks!
08-08-2017, 12:07 AM
#2
4th Gear Member
Join Date: Nov 2009
Location: SoCal
Posts: 1,826
Lol, no. It would be everybody's first mod if that were true. Pain in the *** install (or figure a full day's labor charges if you make it somebody else's pain in the ***) for about 10rwhp. Maybe 15 on the extremely optimistic side.
08-08-2017, 12:25 AM
#3
Those stock heads too? Did they mean peak hp gains or gaines at some parts of the power curve? Probably meant peak. I also have doubts about that much power gained though you do have cams so you would see a little bit more than a stock cammed car.
I had long tubes installed and I like how they sound and it did add some power but the power band moved up and I felt like I lost some lower end grunt as a result. If you can install yourself I'd still get them.
I had long tubes installed and I like how they sound and it did add some power but the power band moved up and I felt like I lost some lower end grunt as a result. If you can install yourself I'd still get them.
