If you want to transform the sound of your 135i, the ARM 135i Race Exhaust is for you. It removes the secondary catalysts, resonator and muffler from the OEM setup — the very things that mute your inline-six — so you finally hear all the snarl under load, the turbo whistle on deceleration and the raw roar at full throttle. A direct bolt-on, it fits the ARM N55 Downpipe, ARM N54 Downpipes or the OEM downpipes.

Highlights

• Incredible exhaust sound.
• 38 lbs lighter than OEM.
• SS304 stainless steel.

Construction

High-grade TIG-welded SS304. It starts with a precision CNC-machined flange at the downpipe (direct fit with the ARM N55/N54 downpipes, OEM and many upgraded downpipes), runs a divided dual-2.5" front midpipe, continues the divided design through the rear midpipe to a Y-pipe that merges into a single 3" pipe, then exits at the driver-side bumper with your choice of Sport Silver or Stealth Black tips.

Fitment

BMW E82 135i Coupe (N54 or N55 3.0L).

What's included: front midpipe, rear midpipe, axle-back, downpipe gaskets, midpipe gaskets, installation hardware.

Backed by ARM Motorsports' lifetime warranty against defects in craftsmanship and fitment.

Emissions disclaimer: This product is intended for off-road, race, or closed-course competition use only and is not legal for use on pollution-controlled vehicles operated on public roads in most states and provinces. You are responsible for compliance with all applicable emissions laws. Please check your local laws before purchase and installation.

Ships from our Vancouver shop — KORE SPEED is proudly Canadian-owned, with no surprise cross-border duties for Canadian buyers. Questions on fitment? Email support@korespeed.com.