Headers on 2002 GT

[seabas2020]

I have a 2002 GT and I was considering installing headers. Would this void my warranty? How much can I expect to pay for them and installation. Will it effect the power or sound very much?

 

[03poontanggt]

Well if smog isn't a big deal where you are at then get some longtubes, you'll notice a big difference.

 

[KaPPaBaLL]

I have a 2002 GT and I was considering installing headers. Would this void my warranty? How much can I expect to pay for them and installation. Will it effect the power or sound very much?

depends on dealer but first- does the area you live have smog and are you going with shorties or longtubes?

Expect to pay anywhere from $250-$500 per. Installation cost, last time i checked $500-$600. There will be a big increase in rwhp/rwtq depending on current mods and will make a difference in sound.

 

[seabas2020]

smog isn't a big deal here, i don't think. I live in Missouri. What is the difference between short and long tube headers? What kind of power increase are you talking about? 10 rwhp?

 

[Zinc03GT]

If you're doing headers don't even bother with shorties if lts are an option...you will notice a negligible difference with shorties...lts and an o/r pipe will give you a noticeable gain

 

[superwhite209]

if you people you are tight with at the dealer then it shouldn't be a problem. some guys can be jerks. how important is your warrenty? my dealer covered my car until i started doing serious mods.

 

[john_324]

Both shorties and long tubes will give you better sound, but only the long tubes will give you any noticeable gain on a N/A car. As I understand it, the shorties don't really help much as the stock manifolds are actually pretty good.

Either are very tough to install on the 4.6s...take a look in the engine bay from below and see why.