Join Date: Jul 2011
Location: Palm Beach Gardens, FL
Feedback: 0 reviews
Well a couple of months ago, I installed an AFE cat-back exhaust. Main reason was to hopefully free up a bit of horse power and get a bit better departure clearance from stock exhaust. I understand that going to a larger diameter (went from 2 1/2 to 3") exhaust can potentially decrease torque a bit, but figured the difference would be negliglbe. So far, the jeep seems to want to down shift a little too eagerly. This results in it being under powered during normal cruising and as a result wants to hunt for gears a bit. As an example, when cruising along at 45 mph, it use to stay around 1800 rpm and pulled just fine. Now it downshifts to about 1400-1500 rpm, and feels like it's starting to bog. If I get on the gas slightly I can feel it trying to figure out which gear to pick since it can't pull anymore. Obviously, if I get on it harder (keep your comments to yourselves), it will downshift but nearly immediately tries to drop back into a higher gear. Also, when installing the cat-back, we had to relocate the vapor canister. It had been moved before when the skid plate was put in, and installed at about a 45 degree angle lengthwise. This time, we attached it flat to the tub just above rear axle (it is in no way close to axle). Now, for whatever reason, I keep getting "gascap" spelled out on the odometer, and the gas cap is exactly where it's supposed to be and fits just fine. Any ideas on either of these problems?
Last edited by Flux; 02-14-2012 at 01:42 PM.