Two Brothers S1R Slip-On Exhaust

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Rating: 5 out of 5 stars
7 Reviews
4 Questions
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Product Details
The S1R exhaust is a state-of-the-art product from Two Brothers Racing. The system features carbon fiber, aluminum or stainless steel highlighted by a natural finished aluminum or stainless steel outlet and stamped spring-mounted inlet for ultimate durability.

The S1R exhaust from Two Brothers Racing showcases a race design while increasing all-around performance.
- S1R Slip-On Exhaust.
- Aerospace high-temp carbon fiber, high-temp stainless steel or natural-finished aluminum canister.
- Teflon-coated magnesium end-cap.
- Stamped spring-fit inlet.
- Aluminum (carbon and aluminum canisters) or stainless steel (stainless canisters) CNC-machined outlet.
- Rubber-lined styled mount.
- Spiral-wound perforated core.
- Accepts P-Series sound reduction tips (sold separately).
- Two Brothers S1R stainless off-road exhaust systems come complete with a U.S. Forestry Service approved removable screen type spark arrestor.
- Comes with all necessary hardware, tubing, and instructions for installation.
Two Brothers Carbon:
All of the Two Brothers carbon parts are made with a high-temp aerospace-grade epoxy resin. The carbon fabric is made with a 33 million modulus carbon tow then impregnated with the high-temperature resin under very tight tolerances.

Note:
Two Brothers Racing Products are for closed course competition use ONLY. Not intended for street use.
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Two Brothers S1R Slip-On Exhaust Review
4 Questions about the Two Brothers S1R Slip-On Exhaust
Fitment

# Part Numbers for the Two Brothers S1R Slip-On Exhaust

Product Variant	Manufacturer Part #
Aluminum	005-4230409-S1
Carbon Fiber	005-3930405-S1, 005-4180405-S1, 005-4530405-S1, 005-4470405-S1, 005-4500405-S1, 005-3840405-S1, 005-3860405-S1, 005-4920405-S1, 005-1920405-S1, 005-3910405-S1, 005-4820405-S1, 005-4160405-S1, 005-4240405-S1, 005-4260405-S1, 005-3850405-S1, 005-3880405-S1, 005-4780405-S1, 005-4660405-S1, 005-4290405-S1, 005-4220405-S1
Ceramic Black Stainless	005-5380409-B
Stainless	005-5170409-S1

WARNING: This product contains chemicals, including (Glass wool fibers (inhalable and biopersistent)), known to the State of California to cause cancer, and birth defects or other reproductive harm. Wash hands after handling. For more information, go to www.P65Warnings.ca.gov.

Two Brothers S1R Slip-On Exhaust

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Two Brothers Carbon:

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