Jeep Jk Quiet Exhaust. That would be the best bet. Exchanging clean air for dirty air helps the engine run more efficiently and improves gas mileage, power.
The only problem was that the. Keeping these components in good condition will ensure that all gasses created when the fuel is burned in the combustion chamber are carried away. Inspired by consumer feedback out on the trails by people who also use their Jeep as everyday drivers, the DynoMax® QuietCrawler™ Performance Exhaust System was specifically designed to provide high clearance for rock crawling, and quiet acoustics for everyday driving.
Dynomax has a quiet crawler system for the JK but its still not available for the JL.
Whether you want to install a cat-back or axle-back system, or just want to add some great exhaust tips, here are what improvements you can expect from each exhaust modification.. Installation of Another great Sponsor to Jeep Jamboree USA is DynoMax® Performance Exhaust. Exchanging clean air for dirty air helps the engine run more efficiently and improves gas mileage, power.