dc headers.

[lucho]

i looking foward in getting some performance headers for my vibe gt 2003. any advices as far a brands. i know dc headers are available for the matrix xrs, would this fit in my vibe?and as far as turbo kits...damn almost $5000 for it. i want my vibe to fly but thats a lot of money.i already have a magnaflow full exaust system, a twm short shifter, and a injen cai. i want more! NITROUSSSS

[Raven]

The exhaust manifold is excellent on the GT, there is almost no gain from a header.

[capachkid]

You know people keep saying there is no noticable gains for the GT header. Has anyone ever dyno'ed one?

[northvibe]

I think from what i gather from another post on this, you only really see gains when you do a full exhaust upgrade, not just the headers.

[Raven]

Quote, originally posted by capachkid »You know people keep saying there is no noticable gains for the GT header. Has anyone ever dyno'ed one? Yes there have been dyno numbers posted. The gain was like 1 1/2 HP. and I think there was actually a loss of torque.

[joholste]

with headers you're sacrificing torque for HP because you lose a lot of backpressure

[capachkid]

I'm not trying to call you out or anything, but I would like to see the numbers. I was seriously about to buy some.

[Raven]

Use search, you might find it.

[capachkid]

did

[Dezz1]

If you try to turbo the GT I would suggest changing the internals because the 2ZZ already has a high compression ratio, and if you add more (too much) compression, well you know what can happen .