your advice required

[03REDFIRE]

ok i was thinking of getting Long tube headers i hear they give the most gains

i own a 2003 GT with a Magnaflow Magnapack cat back already
what would be the best setup to go with i want to use highflow Cats to keep it legal so what do you surggest for Long tubes and High flow cats to compliment what i already have ?

 

[03gtmustang]

BBK LT's with BBK catted X pipe or H pipe, depends on what kind of sound your looking for.