Borla Cat-Back Exhausts
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!
Supersprint Exhaust Systems
Description: Supersprint Inc. was formed in 1955 with the objective of designing and building the highest quality exhaust systems in the world. That objective has been the driving force behind each Supersprint product from the first system built to those being developed for the future. When you purchase a Supersprint product you can be assured it is the highest quality available. All design is validated by extensive testing which includes hours of dyno testing on Supersprint's exclusive in-house Maha 4-wheel chassis dynamometer. When compared to a domestic stainless system, the Supersprint Stainless system showed a 30% flow improvement over the Factory M3 system. To protect against corrosion each non-stainless system receives an aluminized coating inside and out. All internal tubing, resonators and tail pipes are stainless steel. Packing material is longstrand stainless steel wool and rockwool. TÜV Approved.
UUC / Corsa Performance Exhaust
CORSA is one of the largest automotive and high-end marine exhaust tuning companies in the USA with engineering and manufacturing facilities in Ohio and a patented, proprietary technology called Reflective Sound Cancellation™ (RSC, for short). CORSA consults to General Motors, Ford and Daimler-Chrysler and carries the title of "official licensed product" on its GM aftermarket exhaust systems.
The result of the UUC and CORSA's partnership and extensive research and development on the BMW 3 and 5 Series, is the new dronefree RSC™ exhaust system, delivering a pleasant sound at idle and cruise, and a muscular roar at high rpm. CORSA tuned this system specifically to counter drone. Sound pressure waves are reflected within the muffler case and unwanted noise frequencies are cancelled through patented Refective Sound Cancellation™ technology. Their straight-through design coupled with RSC™ noise cancellation technology allows them to tune out the undesirable low frequencies that cause droning, while reducing back pressure. A reduction in back pressure allows the engine to produce more horsepower and torque. The end result is a tuned muffler that produces the best sound and performance possible.
Catalytic Converters
Same quality construction as OEM but at a third of the cost. No welding required because these bolt on to your stock exhaust manifold and muffler. Meets all EPA and CARB requirements. A factory warranty is included: 2 year/25,000 on internals, and 5 years/50,000 miles on exterior shell.
