well, from what i hear about headers, u don't wanna do it more than once. i have a set of borlas sittin at my house, and i'm savin up a little bit before i get my cats. lately, everybody wants to take a **** on the borlas, so i'm thinkin now if i should just sell them and get a different set. what would u guys do? thanks.

 

If you need to stick with shorty headers, I'd go with nothing but the Crawford's at this point. But that's just my opinion (and I bought long tubes, because I can get around the cat inspection.)

 

hey speed racer,

i'm thinkin about xerd long tubes with borla true duals. no cats in florida.what do you think?

 

It's is up to you but, I can say that I bought them and decided not to install them. It is definitely a job you only want to once.

 

don't put it on, the gains aren't worth the trouble. you feel a mild increase in torque, but with nismo or crawford headers you will feel even more.

 

So which headers yield the highst hp/tq gain?

 

IMHO Crawford provides the best torque and horsepower increase across the powerband.



For more info

http://www.crawfordzcar.com

 

stillens new headers look promising. but the crawfords and nismos are proven to be the best IMO.

 

yeah, we've been happy with everything else we've installed. started with a z-xtreme grounding kit, then an aem, a crank pulley, and lastly, the borla dual. i would hate to put them in and 2nd guess the whole time if they're even doin anything as we install other mods. i'll hold on to em for awhile; mayb someone will prove us wrong. oh well; it's what i get for buyin so impulsively.

 

What are the average dyno results for the nismo or crawford headers?

 

my nismo headers showed a peak of ~11.6hp and 18.5lbs of tq.

torque curve was really nice 3.5k+ on the headers too

 

Wow, that is pretty nice Do the Crawfords yield higher?

 

dunno...havent seen any independent dynos...

 

Yes... Charts have been posted.

Though dis-credited because they were from Doug himself and not independant.

 

so, how bout someone does an independent dyno? :P