Installation Time: Afternoon
July 29, 2017
Reduce weight and parts, add noise
Vehicle: 2017 Jeep Wrangler Unlimited Rubicon
Miles Since Install: 4000
The MBRP exhaust system was relatively easy to install. Have a can of silicone lube or WD40 handy to get the rubber hangers to let go. Also, drop the crossmember out, it will make the removal of the old exhaust much easier. Other than that, it's a straight-forward install with minimal tools.
After the install I realized how much weight the factory muffler and resonator adds. This system eliminates all of it with a smaller muffler located under the driver. It freed up enough space in the back to install my remote reservoirs for the rear shocks and gave me space to install Fox air bump stops. MBRP put a nice black paint on the system that seems to be holding up well.
Now the bad. After a week of driving the vehicle with the system installed, I noticed a rattling sound from under my seat. I crawled underneath (after it cooled enough to touch) and found that the clamps had loosened through heat cycling. No big, that's pretty common, I tightened the clamps back up and continued to check/re-torque until stabilized over the next several days. I figured that the rattle would go away once the clamps were tight- unfortunately no. The rattle is coming from the muffler! The internal baffle has come loose and emits an extremely loud and annoying rattle that increases with RPM. I will be replacing the muffler as soon as I can, it drives me crazy doors off.
Clears up room for other components
Sound is OK for a 6 cylinder, mainly adds volume
- Muffler construction is terrible, broken baffle after 500
- Clamps are guillotine type, uneven, and hard to get a
- Loud exhaust note when accelerating dumps close to
driver, can be annoying doors off