Hey guys i install my new off road mac prochamber in my 04 gt. My question is would that affect my MPG? Since i have a leak in the passenger side( i forgot to put the gasket lol)
Get that gasket fixed. That's not good lol. My exhaust never effected my mpg just my foot. That gasket is on summit racing has it for cheap. I bought two just incase I blew it.
Get that gasket fixed. That's not good lol. My exhaust never effected my mpg just my foot. That gasket is on summit racing has it for cheap. I bought two just incase I blew it.
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