Exhaust› Exhaust Pipes, Systems and Components

M4

Cat Eliminator Pipe w/ O2 Bung

$557.00

SKU: YA-CEKR115

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The M4 YA-CEKR115 is a black stainless steel catalytic converter eliminator pipe engineered for the Yamaha YZF-R1 and R1M models. This component is crafted from durable stainless steel and finished with a high-temperature ceramic coating for longevity and aesthetics. It includes an O2 sensor bung, allowing for seamless integration with your motorcycle's existing or modified exhaust system. Depending on the specific configuration, it can remove approximately 11 to 13 pounds from the stock system. It's important to note that all M4 exhaust systems are designed and intended for closed-course competition use only. This product is specifically designed for the Yamaha YZF-R1, covering model years from 2015 through the latest available, with some sources indicating fitment up to 2026.

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

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandM4
Part NumberYA-CEKR115
CategoryExhaust
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

Buy with Confidence

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.

View Full Return Policy

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.

View Full Shipping Policy