RickyMartinZ28

iTrader: (5)

Did anyone else notice a horrible decrease in MPG after installing headers? Maybe the computer needs time to adjust but it is just horrible. About 12 mpg I'm estimating as I haven't had a chance to fill it up and drive it, Just $10 and about 40 miles at most.

??

-Rick

CRAZZ28

iTrader: (13)

Did you have the PCM tuned? Have you been driving harder than usual?

My mileage stayed the same when i did my LT's without a tune.

NHRAMAN

iTrader: (1)

The 'puter should learn after 100-150 miles..mine did...less mileage due to heavy foot and ears wanting more sound..again and again..... looking at your mods..I wouldn't expect more than 15 mpg anyway.

RickyMartinZ28

iTrader: (5)

I haven't been driving any different. I normally get about 15 in the city and atleast 22 on the highway, if not more. I got 26 on a trip to houston during this last summer.

-Rick

Badazz 97 TA

iTrader: (18)

i got about the same. best ever was 24mpg highway. 16-17mpg city and 20 highway now with the cam

Huntr1117

iTrader: (18)

In the city mine was way worse than before. Around 11 mpg. Highway mine actually got better. I was at 18 mpg now I'm getting 20-22 mpg

blackz6sp

iTrader: (11)

Whats the temp down there, if the temp. dropped that would decrease your millage.

Scoggin Dickey

iTrader: (34)

You're probably running rich without a tune. If you truly aren't driving any different, you're unique in your ability to do so

1994Z28Lt1

iTrader: (1)

my mileage definitely increased in town and on the highway with LT's and ORY i went from 26-27 on the highway to 27-29 thats setting the cruise at about 75mph for about 330 miles straight with fuel to spare

RickyMartinZ28

iTrader: (5)

It has been really cold since the install. Maybe thats affecting it.

-Rick