Intake and new muffler = worse gas mileage?
I put an intake and a thrush turbo muffler on my 05 wk 3.7L. my gas mileage has gone from about 16.5 ish to a constant 13.8. I was expecting opposite results.. any ideas? (I understand its a jeep and not a prius, im just wondering)
*** Thrush Turbo is too loud btw. I dont recomend it.***
2005 Grand Cherokee Laredo V6. 2.25" RR lift and 267/75r17 Goodyear Wrangler Authority tires and 2" wheel spacers, K&N Homemade Intake, Aux lights, red calipers = my baby.
Last edited by TheDude584; 02-01-2010 at 05:01 PM..
Reason: Thrush bash =)