BMW 135i Catback Performance Exhaust System

Bolt on more horsepower & torque!
The Perfect blend of Performance, Sound, and Appearance.

The stock exhaust system on the BMW 135i leaves a lot of room for improvement. It does a good job at suppressing exhaust noise, but also corks what is otherwise a wonderful sound. We improved upon the factory system by enlarging the mid-pipes by approximately 0.25" to accommodate increased turbocharger duty. The single resonator cross-over is replaced with our optional dual 8-inch hybrid mufflers, or you can option out these mufflers for the least restriction possible. The large rear muffler is swapped out for our new muffler which is internally similar to the one used on our 335i cat back, but it was specifically designed for the 135&s single inlet/dual outlet design This new muffler has been lengthened and a small baffle was added to increase noise suppression. The resulting sound is nothing short of intoxicating, and we would be surprised if your stereo gets much use after installation. The low-rpm range now has a warm and mellow tone without sounding too "boomy." As you move further into the powerband the character changes from a baritone grunt into a frenetic roar. Our exhaust is a dramatic improvement over the flat uninspiring tone produced by the stock setup. It gives the 135i a more aggressive character without becoming overwhelming. Most importantly, there is no drone! We believe that it provides the perfect blend of performance, sound, and appearance, without any of the drawbacks from which most aftermarket exhausts typically suffer.

Horsepower	Torque

cp-e Exhaust on a completely Stock automatic BMW 135i on 91 octane.	cp-e Exhaust on a completely Stock automatic BMW 135i on 91 octane.

Applications

2007-2010 BMW 135i coupe and convertible models
Fits all USA models

Exclusively for:
2007-2010 BMW 135i 1 Series E82 Coupe & E88 Convertible

The Cat Back System will come complete with step by step instructions and all necessary hardware required
for a complete and professional installation.