BORLA 11750 Axle-Back Perf. Exhaust Sys. for '05-'09 Ford Mustang GT 4.6L V8 & '07-'09 Shelby GT500 5.4L V8 T-304 Stainless Steel S-Type Dual Split Rear Exit Single 4" Round Chrome Tips Each Side

I researched these things significantly. Even borrowed a set of Borla Atak from grandson and installed on my Bullitt. They were too loud for me although the sound was a good sound. These have a really good throaty sound in the 08 mustang V8. HOWEVER, for mine the rear bracket rod for driver side muffler was not in the correct position. It was a full PITA getting it bent and cut so that it would fit. And, even then, it is super close to the cushion of the rear bracket. The passenger side rear bracket rod was also not in the correct position but it was much easier to get bent and cut to fit correctly. Just be aware of that rear bracket issue, but it is worth it!!! Great throaty sound. Not too loud but loud enough to know you changed them!!

I was skeptical to purchase the Borla 11750 exhaust because the the dreaded drone some people have experienced around 1800 rpm. That happens to be around 60 mph in fifth gear under load like going up a hill. ( I have the five speed ) Well, I think it sounds and feels similar to a Harley when you give it some throttle in high gear,not that bad. Its supposed to sound like a muscle car! Idle through 4th gear all sound great. Installation was easy, took about an hour, Just a heads up, there are 4 bolts on the passenger side brackets and 5 on the drivers side. When you can't get old muffler off, look for the fifth bolt.

Left & Right exit of the muffler is shifted left. But sound is great.

Excellent product. Except Amazon's web site insists it does not fit my car, a 2009 Shelby GT500. If Amazon would get their (fit to car match) working right they may sell more Borla's. I contacted Borla directly and they assured me that the 11750 was a perfect fit for my Mustang. It is a perfect fit and sounds great.

I have been very satisfied with the muscle car tone of these mufflers Very little to no drone. I had Flowmasters on before installing the Borlas. Even though the Flowmasters drone at certain speeds, sometimes I still miss the Flowmasters sound at idle. I guess that's normal for a Mustang owner after a few years of one brand muffler gets the itch to try something else LOL. That being said I think most people would be very satisfied with the Borla. .

Absolutely love these they gave me the sound I was looking for just the right amount of noise without being too much!!! My husband and I installed them on my 08 Mustang GT and the only hard part was taking off my old ones the new ones were super easy to install and highly recommend taking the exhaust hangers off with the old exhaust then pulling the hangers off and putting them on the new pipes makes life a lot easier when putting the new one back on!!!

Sturdy, attractive and well made but a bit louder than I liked with some drone inside passenger cabin at 55 - 60 MPH.

My Mustang sounds so sick I love it It didn’t take long for my husband to put these on. I’m very happy