Price: $120.00
Pros: Louder then stock
Cons: none
Recommended? Yes

Comments: I bought this after going to Big Dogs Offroad Main Jambo and hearing all of the other Jeeps that had them. Now that I have one I am liking the sound but I am thinking that I might have liked a Super 40 Series because I want it to be even louder. But the 40 Series is nice it has a nice throaty sound at 1000 and 2700 RPMs you know it is there at all the other RPMs but it is most noticible at 1000 and 2700.

Price: $80.00
Pros: loud. a little more power... maybe
Cons: too loud. you cant here your spotter. i want my stock exhaust back!!
Recommended? No

Comments: if you want to sound "cool" get it. otherwise. dont bother. its annoying. i do 1000 mile road trips, and im def for the next 24 hours afterwards. i hate it

Price: $74.00
Pros: good sound, affordable price
Cons: none
Recommended? Yes

Comments: Gives a nice throaty sound. Was concerned at first, b/c when I first put it on, it was hardly noticable. A couple of days later, though, it was sounding nice.

Price: $150.00
Pros: Sound is good at idle up to 1500rpm and above 2000
Cons: VERY VERY loud from 1500 to 2000
Recommended? No

Comments: very boomy and loud - if thats what you want then go for it.

Price: $1.00
Pros: nice sound
Cons: none
Recommended? Yes

Comments: I am not sure which FlowMaster Muffler I have but I have always had one on my Jeep and they sound awesome.

Price: $40.00
Pros: great sound for a 4 cylinder
Cons: welds broke on actual inlet pipe on muffler
Recommended? Yes

Comments: Great sound for a 4 cylinder! A couple other Jeepers don't believe me when I tell them its only a 4 cylinder!

Price: $120.00
Recommended? Yes

Comments: I got a new flowmaster 40 series muffler for my jeep with the 4.0 straight 6 motor and went straight from the cat back with the muffle and new pipe and it sounds great

Price: $150.00
Recommended? Yes

Comments: I really like the sound of this exhaust; deep and loud. My former Grand Cherokee 5.2 also had a Flowmaster exhaust, but the normal 40-series. This Deltaflow edition sounds more aggresive and fits better with the 5.9

Price: $100.00
Recommended? Yes

Comments: Instant notice of HP and Torque increase in mid to high range RPM. Great sound as well

Price: $100.00
Recommended? Yes

Comments: Excellent sound, no drone,

The muffler is accually a 2 chamber knock off of flowmasters for half the price.

Recommended? Yes

Comments: have the cat-back , has a nice sound , does have a garble on de-acceleration but not too loud

Recommended? No

Comments: 2.5" with piping. Sounds ok at speeed buy t when you at about 1200-1800 rpms its just so loud..

Price: $90.00
Recommended? Yes

Comments: Excellent compression for th 4clys, and it sounds great, and at a great price!

Price: $100.00
Recommended? Yes

Comments: well lets see i have to put at least 75 characters on this. so ill just start by saying the flowmaster makes my jeep sound like a camaro with a 454 although its not far off it just sounds like no other.

Price: $140.00
Recommended? Yes

Comments: Super 44 designed for offroad . black diamond plated model

awesome sounding mellow growl , improved power but not by a ton

Price: $90.00
Recommended? Yes

Comments: awesome sound not too loud when cruisin. nice rumble at idle. gotta love that sound....!

Price: $250.00
Recommended? Yes

Comments: sounds great gives a deep sound not a pissed of bumplr bee dont think i will change a thing