You can get a magnaflow system made at an exhaust shop for $200, and if you want true duals, probably closer to $300-350. Flowmaster 40s will be a touch cheaper, Flowmaster 50s will be a touch more expensive. If you really want Borla, get that, but there are other avenues that are just as high quality.
Hell, you might be able to get a borla exhaust put on at an exhaust shop, but they would have to order the muffler.

 

the problem with most exhaust shop is that they can't provide you with a mandrel bent pipe. Crush bent pipe will restrict the exhaust flow

 

I paid $450 for the Borla Muffler. I installed it in under 10 minutes in my garage with hand tools & would recommend it to anyone. This is my first Borla exhaust and have been totally impressed. It has a great low rumble to it and sounds like a small V8.

I didn't go with the cat back system because the JK's exhaust system is, for the most part, straight 2 1/2" tubing with a bend over the rear axle.

With the Borla muffler & the Airaid CAI, it runs exactly like I want it to & has excellent power and is night-and-day above stock.

The only drawback for Borla is they are expensive.

 

Pic.s Please

 

I finally decided this morning and ordered the Borla cat-back system (single exit pipe). It should be here in a few days, will post sound clips once I get it installed next weekend.

 

Gibson exhaust has problems -

Not enough back pressure so the car loses power and mpg's -

Ask me how I know -

I am dealing with Gibson on it now -

Seems other who have the gibson on the JK are having the same problem -

 

It's rare to find a muffler shop that does mandrel bent tubing.
The JK has 2.5" tubing. That's a lot of pipe, for this little V6. I would find it very hard to believe that the small amount of difference that a mandrel bent vs pressure bent pipe makes much of a difference either way. We all know that the JK motor peformes better with "some" back pressure, so there may actually be a benefit to pressure bending. According to this the mandrel bends my be helping.

my 2 cents

 

The more back pressure, the more low end power. The less backpressure, the more high-end power....

So, putting a crush bent pipe will definitely results in an increase in low end power.... i guess it depends on what you want to sacrifice..

 

My word of advice. If you can't afford a quality stainless cat back then wait. Trust me. I had an aluminized Flow Master cat back and the welds broke and it rusted and I ended up getting a stainless setup.

Had a Magnaflow Catback on my Silverado and it was worth it.

 

Are these the only two companies who make exhaust for the JK?