Sale

Berk Technology

Axle-Back Street Performance Exhaust System

$725.00 $499.00 Save $226.00

SKU: BT1801-M

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The Berk Technology Axle-Back Street Performance Exhaust is engineered to unlock the performance and distinctive sound of your BMW 135i. This sport muffler system represents a no-compromise approach to achieving significant horsepower gains in a lightweight and elegant package. Featuring larger 3.00″ diameter tubing and a straight-through polished muffler, this system is designed to minimize obstructions and maximize exhaust flow. The aesthetic is completed with twin 80mm dual-wall tips, polished to a high sheen, which complement the vehicle's original look. The entire exhaust system is constructed from full stainless steel and is meticulously hand-assembled and TIG welded for superior durability and performance. Installation is straightforward, as all Berk Technology exhaust systems are designed for a 100% bolt-on fitment using factory mounting points. No special tools or vehicle modifications are necessary. This exhaust system is compatible with both the twin-turbo N54 and single-turbo N55 variants of the BMW 135i. Key features of this performance exhaust include a deep, authoritative tone with exotic notes at full throttle, an increase in horsepower, torque, and turbo response, a lightweight straight-through design for maximum flow, and twin 80mm polished dual wall exhaust tips.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandBerk Technology
Part NumberBT1801-M
CategoryExhaust
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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