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MAD

N55 V2 Catless Downpipe

Name: N55 V2 Catless Downpipe
Brand: MAD
SKU: MAD-009

$209.00 $173.63 Save $35.37

SKU: MAD-009

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Non-Returnable Item

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Moderate — 2–4 hours

Overview

The MAD N55 V2 downpipe is a catless exhaust component designed to increase airflow, power, and sound. By removing the stock catalytic converters, this downpipe allows the turbo to spool faster and achieve maximum power. It features smooth bends for optimal airflow without drone.

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The MAD N55 V2 downpipe is engineered to replace the stock catalytic converters, offering a significant upgrade for BMW N55 engines. This catless design maximizes exhaust flow, leading to faster turbo spool, increased horsepower, and an improved exhaust note. Constructed with smooth bends, this downpipe ensures unimpeded airflow without introducing any undesirable drone. It is designed to provide up to a 30HP increase on tuned BMW N55 engines with stock turbos, with even greater gains possible on vehicles equipped with upgraded turbos. The downpipe is made from stainless steel and comes with a lifetime warranty covering defects and fitment, as well as a 90-day return period. This downpipe is compatible with a range of BMW models, including the 2014-2015 M135i & Xdrive (produced after 07/13), M235i & Xdrive, M2, 2014-2015 335i & Xdrive (produced after 07/13), and 435i & Xdrive. All orders are shipped within 1-2 business days.

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

Brand	MAD
Part Number	MAD-009
Category	Exhaust

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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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