I LoL'd at the comments.

 

HAHA wow. Sorry dude. Like everybody else I didn't know APR made 'headers'

Too funny

Thanks for the laugh homie!

 

Man, you guys are brutal today. I don't see how a header could really hurt gas mileage. Either it's all in your head, or you've got some other issue IMO. What kind of mileage are you getting now and what were you getting before?

 

when my car was completely stock and on the track I got 10 mpg

it's your foot combined with your ears wanting to hear something new

 

Answers to this post are to be expected. People deserve it.

As previously asked, how many miles did you used to get to the tank? and now?

 

it said apr on the box the guy gave me lol. i dont know the actual name. they're stainless steel 4-2-1. before i got around 24 on the highway now when i go above 70 i can actually see my fuel gauge go down.

 

If your car is consuming more gas since the install ... i'd say check the O2 sensor (maybe even both). They impact the fuel usage greatly.