is it worth buying since there is no upgradable ecu chip for 99's? How many people have it? Theres not to many power mods for 99's =(.

 

I'm confused. Why would you need an ECU to go with headers?

 

i thought you dont get the full potential of the headers if you dont combine it with a ecu... or something like that

 

thats only with the mevi

 

i dunno, i thought i read somwhere about headers and ecus... or maybe it was mevi... som1 please give some more fedback on this

 

The ECU has nothing to do with the headers

 

Nothing at all. Mevi and ECU go together...not ECU and headers. You will get all gains promised. But a Y is a cheaper way to go and only has about 5 wheel hp less than headers.

 

omg.... thanks for the info. Gotta get headers then since i have a y-pipe, cai, and soon will have a cattback exhaust

 

Depends if you are cali spec or fed spec? If you have a cali-spec 1999, What are you going to do with the precat and the check engine light?

 

damn im a cali =( i dont know what i'll do, i guess i cant get headers then

 

www.02simulator.com takes care of the check engine lights, I been runing that setup on my Max for quite some time. I would reather get the MEVI in your case vs the headers. Another thing is where did you come up with 5WHP more for headers vs y-pipe ? I never seen anyone dyno Cattman headers on a 4th gen, even Brian said in the last header thread in the 5th gen section of the .org, that he will refund anyone 50 dollars if a car dynos before and after the headers to show a HP gain.