The ARM Motorsports 135i Race Exhaust is engineered for enthusiasts who want to unlock the most aggressive and exhilarating exhaust sound from their E82 135i. By removing the OEM secondary catalytic converters, resonator, and muffler, this system dramatically increases exhaust volume and reveals the true character of the N54 and N55 engines. The result is an unmistakable snarl under load, crisp turbo whistle on deceleration, and a raw, race-inspired roar at full throttle—everything the factory exhaust system hides.

This system offers a substantial 38-pound weight reduction compared to the stock exhaust, improving both performance and responsiveness. The ARM 135i Race Exhaust is a direct bolt-on upgrade designed to mate seamlessly with the ARM N55 Downpipe, ARM N54 Downpipes, or the OEM downpipe, ensuring compatibility across all 135i engine variants.

Constructed entirely from TIG-welded SS304 stainless steel, the system includes a divided dual 2.5-inch front and rear midpipe section that transitions into a single 3-inch axle-back pipe through a precision Y-pipe merge. The final 3-inch section exits on the driver side and can be paired with either Sport Silver or Stealth Black exhaust tips to match your desired aesthetic.

This exhaust system delivers maximum sound, reduced weight, and exceptional durability, making it the ideal upgrade for drivers seeking a truly race-inspired driving experience.

Fitment:

Fits the following BMW models:

• BMW E82 135i Coupe (N54 3.0L)
• BMW E82 135i Coupe (N55 3.0L)