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Two Brothers Racing

S1R Full System Exhaust

$1,011.98 $894.00 Save $117.98

SKU: 005-5060105-S1B

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

Overview

The Two Brothers Racing S1R Full System is an exhaust pipe designed for the Kawasaki Ninja 400/Z400 (2018-2023). It features an aerospace-grade high-temperature carbon fiber construction with a magnesium teflon end cap.
Show original supplier description
The Two Brothers Racing S1R Full System is an exhaust upgrade meticulously crafted for the Kawasaki Ninja 400/Z400 models from 2018 to 2023. This system showcases a premium aerospace-grade high-temperature carbon fiber construction, ensuring durability and a lightweight profile. It integrates a magnesium teflon lightweight end cap, contributing to the overall performance and aesthetics. Engineered for optimal performance, the S1R features a stamped, durable spring-fit inlet and an aluminum CNC-machined outlet. The internal design includes a spiral-wound perforated core, and the mount is a rubber-lined aggressive style, providing both secure attachment and a distinctive look. It's important to note that this exhaust system is not CARB approved and will not be shipped to California. Additionally, all Two Brothers Racing products are intended for closed-course competition use only and may not be legal for street use.

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

BrandTwo Brothers Racing
Part Number005-5060105-S1B
CategoryExhaust
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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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