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Gray Ghost · 06-09-2009, 07:08 PM

Andy is right...it should help but in all reality it didn't for me. I now have ramhorns and have gained power on the lower end and the mileage is the same...11 mpg with a 3.07 rear axle.

I'll never have headers again at this point...they're just too much damn trouble. I haven't tightened a heeader bolt in weeks!!

06-09-2009, 07:08 PM	#9
Gray Ghost Senior Member Join Date: Sep 2004 Location: Terrell, TX Posts: 1,967	Re: Ramhorns vs. Headers for MPG gains? Andy is right...it should help but in all reality it didn't for me. I now have ramhorns and have gained power on the lower end and the mileage is the same...11 mpg with a 3.07 rear axle. I'll never have headers again at this point...they're just too much damn trouble. I haven't tightened a heeader bolt in weeks!! __________________ Kelly '05 GMC Sierra SLE Z71 Bone stock except for new bed rail caps.