White_LightningZ

iTrader: (1)

My brother is thinking of getting headers but heard they lower mpg a lot even with a tune.

I was wondering whether that is specific to long tubes or all headers? or emissions/no emissions.

Opinions please. Let me know if you had an increase/decrease in mpg after install and what kind of headers.

WannaZ28

think of it like this: long tubes will give you power upper end, shorties are great for low end power (most of the rpm range you will cruise)

Jditlfm

iTrader: (26)

i gained 2 mpg when i did long tubes and a ory, and alot of performance picked up 4mph in the 1/4

96_TA

I thought long tubes gave more power in the low end and short tubes give more in the med/high end?

Mike

Chaotic Firebird

Your foot is what causes the decrease in mpg

TAEnvy

iTrader: (2)

Ive always been told that LTs increase gas mileage because the exhaust will be Pulled from the combustion chamber due to the design of the headers therefore increasing mileage.

Muerte_X

iTrader: (1)

It's less restriction, allowing your engine to do it's job easier. So you will have better fuel economy, problem is, staying off the fast pedal and enjoying that extra power.

P97LT106

wannaz28, are you retarted, long tubes give you the power down low. dont post unless you know what you are talking about. Think of it like this, when you let the car breath you get better mileage, (clean or high flow filter and better exhaust) so yes headers will increase MPG, i have personal experience with this

slick1851

Just like you need a muffler or OMG you have no back presser thats like dinsour old man myths that stick around.