High flow cat?
03-17-2014, 09:30 AM
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Year: 1998
Model: Cherokee
Engine: 4.0L i6
High flow cat?
I'm looking to get better MPG. Would a high flow catalytic converter and flowmaster 44 help? I'm looking at a thunderbolt 2.5" in/out high flow catalytic converter and a flowmaster 44 2.5" in with dual 2.5" out.
03-17-2014, 02:57 PM
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Year: 1996
Model: Cherokee (XJ)
Engine: 4.Slow
Ways to increase MPG are as easy as a high flow exhaust, intake, proper tune up and cleaning/refreshing of the TB and sensors. Can't expect astronomical numbers but you may pick up a couple. Hey, in this day, 2-3 MPG x 16-20 (spending on your tank size) is still a good gain.
03-17-2014, 03:13 PM
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Year: 1996
Model: Cherokee
Engine: 4.0
literally just did this. had a leaky exhaust and went from 12 mpg to about 15. only thing tho with this set up is it is very loud i kinda like it tho. if you want something quiter don't go witht he thunderbolt just do a oem cat. and 2.25 flowmaster
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