I am looking at the aFe Power Rock Basher cat-back exhaust. It tucks up nicely inside the frame and is short, meaning it doesn't stick out the back. Anyone have experience with this exhaust, or recommend another?
Honestly, unless you don't care how your exhaust will sound, I would hold off a bit before making a change like this. Most aftermarket exhausts can have a ricey sound or have a harsh drone at highway speeds. I would wait until you could get a good sampling of sound clips and/or feedback from others who've run various systems.
Honestly, unless you don't care how your exhaust will sound, I would hold off a bit before making a change like this. Most aftermarket exhausts can have a ricey sound or have a harsh drone at highway speeds. I would wait until you could get a good sampling of sound clips and/or feedback from others who've run various systems.
Is it just about sound? You'll notice that NO exhaust manufacturers will post HP/Torque numbers for their exhaust on the 3.6. It's because every single one of them causes a loss of HP/torque over the factory system.
So far based purely on functional clearance potential alone listed in order of preference:
DynoMax Ultra Flo Evolution Competition Cat-Back Exhaust (my #1 pick, just waiting for them to release the JLU version)
aFe Power Rock Basher Cat-back Exhaust (#2 pick, only will purchase IF DynoMax chokes)
MagnaFlow Off-Road Pro Series Cat-Back Exhaust (Already ruled this one out because the turn-down appears to hang lower than others)
My predominate factors include, Functional clearance potential, USA made, Sound (subjective to me). Quality is assumed equal unless proven otherwise.
Of course, this is preliminary and for planning purposes only until actual market proliferation.
Hope this helps.
So far based purely on functional clearance potential alone listed in order of preference:
DynoMax Ultra Flo Evolution Competition Cat-Back Exhaust (my #1 pick, just waiting for them to release the JLU version)
aFe Power Rock Basher Cat-back Exhaust (#2 pick, only will purchase IF DynoMax chokes)
MagnaFlow Off-Road Pro Series Cat-Back Exhaust (Already ruled this one out because the turn-down appears to hang lower than others)
My predominate factors include, Functional clearance potential, USA made, Sound (subjective to me). Quality is assumed equal unless proven otherwise.
Of course, this is preliminary and for planning purposes only until actual market proliferation.
Hope this helps.
Great assessment and spot on. I have been reviewing the aFe Rock Basher pretty heavily. The web page states "- Provides increased performance: up to 9HP and 8 lbs/ft of torque", but that's not really important to me because even if it's true, I would never feel the minimal gains. However, I really like how it tucks up high inside the frame and stops right before the rear wheels. So, it doesn't extend all the way out the back, and provides the clearance I am looking for. Regarding sound, it's purely subjective but the videos I have seen is pretty impressive and doesn't sound bad at all. I am trying to be patient and see what DynoMax comes out with as it's highly recommended on this forum.
Of all the exhausts I've personally tested on our JK with a 3.6L, the DynoMax QuietCrawler is the only one I really liked and even better than other DynoMax systems. Granted, it is all subjective. Here's video Cindy and I did of the setup we have on Rubicat.
I know Rancho already has a dynomax exhaust on theirs so I'm sure they are close to having it ready.
Any word from DynoMax when the JL options will be available?
I talked to one of them yesterday and was told they're working hard on it and hopefully there will be something 'soon.' I don't know what that means, lol.
Of all the exhausts I've personally tested on our JK with a 3.6L, the DynoMax QuietCrawler is the only one I really liked and even better than other DynoMax systems. Granted, it is all subjective. Here's video Cindy and I did of the setup we have on Rubicat.
Just to echo PaulNY's concern I've read that these things are actually illegal in some states (possibly including Utah but not California). Carbon monoxide poisoning is serious business. The aFe site has a note saying "for off-road use only", no doubt to cover their a***s if someone decides to use their stuff where it isn't legal.
For what it's worth, I have an aFe high-clearance exhaust on my JK, the kind the exits all the way back near the bumper. IMHO it sounds fine. And I've only dinged it a little on the rocks.