MagnaFlow MF Series Performance Cat-Back Exhaust Systems

I put this kit on my 2003 TJ with a 4.0L and was suprised on how quiet the system is. It is louder than stock but not by much. It feels like there is a little more power and the engine has better response. The fit and finish are excellent as was easy to install.

Loud is a relative term. Sounds more aggressive and quite a bit louder than OE one. Seems to add HP and Torque.I suggest anyone wanting to up grade your exhaust to listen to as many of the different brands as possible before purchasing any one. Sound bites and videos can only do so much.

Simply amazing

looks good, sounds ok, clampt together easly, hanger position had to be modified slightley.

The exhaust looks awesome and went together well and after the install I started it up and it sounded sweet.Well engineered and quality materials.

has a really nice deep tone to it! the guy who put it on said this ford was the best sounding ford he's ever heard!

i got this exhaust for my 18th birthday for my 2008 GMC sierra 1500 SL regular cab 2WD and i can say i'm nothing but satisfied and completely impressed. At around 2000 RPM, it gives the truck a great drone sound when accelerating but not bad when on the freeway or highway usually only when accelerating is when the drone is best heard. i noticed about 13-17 more horsepower, a tiny bit more MPG and a wicked sound when it was installed professionally by 4WP mechanics. no cons whatsoever well worth the money and a difference in power and sound is definitely noticeable