[Forge04]

What kind of exhaust have you all put on your YJs?

I'm looking to bolt something on preferably, not weld. Of course cost is the biggest hurdle.

I'd like a nice rumble, if that's possible with the 4.0L.

Thoughts?

[DamonBest]

Honestly I'd like some info as well. I've been contemplating putting a cherrybomb glasspak on my 4.2l yj, heard it gives it a "throaty" rumble. Any opinions would be awesome!

[Forge04]

Bump

[trboxman]

I run a Gibson cat back. Sounds great, not cheap.

[fishnic]

for my 2.5L I went to oreilys and bought the standard replacement muffler and tailpipe. bolt on and sounds fine to me. cost me about $75 from what I remember.

[Xpress]

You're Jeep is loud enough, why make it more obnoxious??

I myself put on a $50 AutoZone muffler, OEM replacement. Sounds nice and quiet.

[youngjeepr]

I had a Dynomax muffler on my 2.5 and it sounded alright.

[NonRubicon]

I put in a Walker OEM style cat-back. A little louder than stock and no drone while at cruising speeds. Whole thing was about $100.

[jeepyj13]

I just installed a flowmaster 40 series deltaflow on my yj yesterday and it sounds beastly even for a I6. My buddy had one on his old yj and it sounded mean.

[brk913]

I have a 91 with the 4.0, automatic. I put on a TJ Front pipe with a highflow cat and a Flowmaster 40 series, currently no tail pipe. It sounds great, gives it a deep throaty sound without being to obnoxious. Bought everything from Summit, the Cat includes the front pipe and it runs around in front of the oil pan instead of hanging under the tranny gaining great ground clearance. Here are links to what I bought:
Cat and Pipe: http://www.summitracing.com/parts/MPE-23227/
Muffler: http://www.summitracing.com/parts/FLO-942442/
I also bought a new donut gasket at the local parts store and I tried to put a stock tailpipe on it but it was to short, probably could have bought an extension pipe and stuffed it in there but I figured I would just go have a one piece tailpipe made for it, that was over a year ago and I still have not gotten around to it. I also had to get a plug for the extra O2 sensor hole in the cat, front pipe had the O2 hole for the single sensor the YJ has.