Well I know the DC Sports header for the Matrix/Vibe is the same for the Corolla, I believe. That's why I think it would work. I don't know if I'd get much better performance with the DC Sports one....... may be worth spending the extra 100$.
im getting a set of stock headers ported from a guy on newcelica.org in texas, this summer. dyno's show significant increase in hp/torq and people there said the DC headers make you lose hp? with stock headers ported you know they will fit perfect, pas smog and wont throw a cel. they are only $110 for parts and labor + shipping. shipping is under 20 both ways so around $150-160 total. He does core exhange also, so you wont be with out a vehicle. his name is boosted2.0 check out the thread.http://www.newcelica.org/forum...pp=50
I thought about that but I believe I'll get better performance with the DC Sports Header. I know it's not effective in the GT model because that exhaust manifold is already good enough. I believe if installed correctly it shouldn't throw a CEL.
not to rag on this but, the ported ones dyno'd more hp/torq than the DC sports headers. also ported will be cheaper, imo ported is the best option. read page 6 of that newcelica thread. Either way with ported or DC your going to get more out of the 1zz. Oh theres also JP headers, damronjr has them.