Hey guys, I started out at about 12 MPG when I first got the GCSRT8.

Then, after 4000 miles, I was up to about 13 MPG

I got a GSM CAI at 4000 miles and I went down to about 11.5 MPG for the first 2 weeks then back up to about 14 MPG.

Then, at 9K miles, I got a Mopar/Corsa Exhaust and it has fell down to about 13 MPG again (I also got the TCM flash a few weeks after this)....I've had the exhaust for about a month+ now and it doesn't seem to be making much of a difference...

I drive in the exact same conditions to and from work every day...so its not user error.

Perhaps I should unplug the Negative of the battery for 15 mins to reset? Would this help or hurt??

Any other MPG stories/numbers with the Mopar exhaust?

I believe a few guys with CAI and exhaust said they've seen better mpg by at least 2 mpg.

Ive always heard that after the CAI, People got slightly better gas mileage!

I always disconnect the battery, neg 1st, then pos, for 10-15 minutes,then reverse procedure to erase all adaptives, then do a TPS reset when I make any changes. It certainly will not hurt. :)

What is a TPS reset?

Throttle position sensor, turn key to on position, don't start, wait till lights clear on dash(two lights will stay on), apply slow steady gas pedal pressure to floor and release pedal at the same rate as applied, turn key to off, wait about 10 sec,then start. This just speeds up the tps learn after the battery disconnect.

I have both the Mopar CAI and the Mopar / Corsa Cat Back. After the Cat Back was installed I saw between 0.5 and 1.0 MPG increase and this has now maintained for 6K miles. Now seeing ~16 MPG in normal driving (test driving excluded).

JST2
06 GC SRT8
19,800 miles so far

My milage went down with the CAI and Corsa exhaust. Too much WOOOOTTTTTT!!!!!! =D