We have been selling Borla exhausts for BMWs for over 10 years and it is still our Number 1 choice for a cat-back exhaust. Borla designs their exhausts to be not too loud (you don't own a Camaro) and not too quiet (you don't want to drive a hearse either) but rather in the middle. If you're driving with the windows up and the radio on you probably won't hear the great sound. Borla also builds their exhausts from T-304 stainless steel (inside and outside). This means long life (a 1,000,000 mile warranty is part of the deal) and light weight. Comparisons between a stock E36 M3 muffler and the Borla revealed the Borla system is 26lbs lighter!
Available for the following BMWs: (click icon to change BMW)
Borla Stainless Steel Cat Back Exhauast - E65 745i 745li
(more info) BORLA R&D Engineers have developed a sophisticated, unique exhaust for the 745i 745Li 4.5L V8 for 2002-05. This system (PN 140130) is a true dual Cat-Back™ and incorporates a lead muffler that serves both to attenuate sound and balance pressure, similar to the X-pipes used on race machines. Augmented with two secondary mufflers and followed up with a rear muffler assembly, the system exits with two turned down phantom tips at the rear valence driver side. Among the amazing qualities of the BORLA system: With all the extra tubing and mufflers, this system flows an unheard of 300+cfm more than stock and weighs in at an amazing 21 pounds less than stock -- a true testament to BORLA engineering which also accounts for the performance gains. The Li model is longer, requiring an extension pipe (included in every system). Performance, looks, better mileage and the right sound….what’s there not to like!
Borla Cat-Back Exhausts
