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Borla Axle/Cat-Back Exhaust for 2008-12 BMW 135i [E82] w/2x 76mm Angled Tips 12655 11763


Quick Overview

Turn your BMW 135i from bland to exciting with this borla exhaust system!!!

Sku # : Borla_135i_Exhaust_CatBack_ER3
Specify Axleback or Downpipe Back Cat-Delete Style
Specify Coupe or Convertible
The Borla Stainless Steel Downpipe-Back Cat-Delete Exhaust System is the epitome of a custom crafted high performance race exhaust.  For the last decade Borla has been on the leading edge in their exhaust development.   Each system is designed specifically for each make and model, and is guaranteed to install without problems, and with a flawless finished appearance.  This Exhaust System features mandrel-bent T-304 Stainless Steel tubing, and Borla's patented multi-core and straight-through muffler design, which helps to optimize performance and efficiency throughout the entire system, while at the same time creating that on of kind deep rumble Borla is famous for.  Works great with all other modifications and is designed to create the best flow possible.  The Borla Exhaust comes dyno proven to sky rocket horsepower, torque, acceleration, and throttle response.  This system is intended for race enthusiasts looking to make the most out their vehicles.



  • Borla Performance Cat-Back exhaust systems are custom crafted for your specific vehicle
  • 15WHP Gain!
  • Borla Cat-Back systems and mufflers generate maximum exhaust flow and the distinctive Borla Sound of Power
  • Each system is built entirely from aerospace-grade T-304 stainless steel—inside and out
  • Borla's mandrel-bent tubing eliminates excessive back-pressure and provides a smooth exit for spent gasses
  • Free-flowing Borla exhaust systems boost horsepower and torque and can also increase fuel economy
  • Kits feature Borla's patented multi-core and straight-through muffler designs
  • Your Borla system installs directly to your vehicle's factory-exhaust mounting locations
  • All kits include the required clamps, connectors and hardware—everything you need for a hassle-free installation
  • Every Borla exhaust is extensively tuned and tested to optimize vehicle performance
  • Borla Cat-Backs are street legal in all 50 states and will not void your vehicle's factory warranty
  • Your Cat-Back performance exhaust system is backed by Borla's Million-Mile Warranty
  • 2008-12 135i/E82 Coupe
  • 2008-12 135i/E88 Convertible


See Link: http://www.borla.com/media/installations/11763.pdf

Construction and Specs
Downpipe-Back Cat-Back Exhaust (12655)
  • 3.5" Dual Round, Rolled Edge, Angle Cut Polished Tips
  • Dual inlet, dual outlet muffler
  • Cat-Delete
  • Exits in stock location
  • For competition or off road use only and may not be emissions legal in some states
  • Not DOT, CARB, or EPA certified or applicable for use on public streets or highways
Rear Section Exhaust (11763)
  • Single-Inlet, Dual-Outlet Muffler
  • 2 Round, Rolled Edges, Angle-Cut, Intercooled Tips
  • Rear muffler section only in stock location


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