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Yoshimura RS-4 Slip-On Exhaust Husqvarna / KTM 350cc-500cc

The Yoshimura RS-4 Slip-On exhaust has been put to the test and has proven its capabilities at the highest level of competition. In 2010 the RS-4 muffler helped Ryan Dungey claim the AMA 450 Supercross and Motocross championships in his rookie season. The Yoshimura-backed GEICO Honda team also took home both East and West Coast Supercross Lites titles in 2012 using the Yoshimura RS-4 exhaust.

Utilizing the same R&D that helped bring success at the national level has resulted in a unique exhaust design that provides an unrivaled combination of power and quiet exhaust note. The Yoshimura RS-4 Pipe features an innovative carbon cone end cap, a two staged stepped baffle, and a polyresonant duplex chamber which acts as a muffler within a muffler to help save weight and centralize mass.

Nearly all Yoshimura exhaust systems that have won Motocross or Supercross championships are members of the Yoshimura Signature Series. All Signature Series pipes have been tested, documented, and marked as required by federal and state regulations. Working in conjunction with factory race teams has allowed Yoshimura to develop a exhaust system that gives you an unparalleled competitive advantage.

Features:

  • Pentagonal-shaped sleeve
  • Polyresonant front muffler chamber which helps reduce noise
  • Two-stage stepped baffle
  • Yoshimura Signature Series muffler
  • Carbon fiber end-cap
  • CARB/EPA tailpipe emissions compliant
  • 100% Made in the USA
Made in the USA
Product Style RevZilla Item # Store Sku MFR. Product # Availability
Product Style Yoshimura RS-4 Slip-On Exhaust Husqvarna / KTM 350cc-500cc 2024-2025 RevZilla Item #10431926 Store Sku MFR. Product #265022S320 AvailabilityOnly 1 Left: Ships within 24 hours

This product DOES NOT FIT your 2012 Polaris Sportsman XP 850 EFI w/EPS

This Product Fits
Husqvarna
FE350s 2024, 2025
FE501s 2024, 2025
KTM
350 EXC-F 2024, 2025
500 EXC-F 2024, 2025
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Product Description
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67 Customer Reviews
67 4.5/5
42 Questions & 36 Answers
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