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Yoshimura RS-4 Slip-On Exhaust Yamaha YZ450F / FX / WR450F 2014-2017
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  • Yoshimura RS-4 Slip-On Exhaust Yamaha YZ450F / FX / WR450F 2014-2017 - Stainless Steel/Aluminum/Carbon Fiber
  • Yoshimura RS-4 Slip-On Exhaust Yamaha YZ450F / FX / WR450F 2014-2017
  • Yoshimura RS-4 Slip-On Exhaust Yamaha YZ450F / FX / WR450F 2014-2017

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Material:

MSRP
$425.00
Savings (20%):
$85.00
Price
$340.00

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Video Reviews (3)

Yoshimura RS-4 Slip-On Exhaust Yamaha YZ450F / FX / WR450F 2014-2017 Videos

This product is legal in California only for racing vehicles which may never be used, registered or licensed for use upon a highway.

Yoshimura RS-4 Slip-On Exhaust Yamaha WR450F / YZ450F / YZ450FX

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
4.7 / 5
Bang For The Buck
4 / 5
Features
4 / 5
Style
5 / 5
Ease Of Install
5 / 5
Fit & Finish
5 / 5
This Product Fits:
Yamaha
WR450F 2016, 2017
YZ450F 2014, 2015, 2016, 2017
YZ450FX 2016, 2017
Product Style RevZilla Item # Manufacturer Product # Availability
Stainless Steel/Aluminum/Carbon Fiber 1078201 234812D321 In Stock: Ships within 24 hours

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Returns

If your order arrives and it is not right, we will we'll fix it, NO NONSENSE, we promise.

Doesn't fit or just not happy with it? You can return any new, unused and unaltered item within 30 business days of delivery receipt of your item. We will issue a full refund to your original payment method.

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4.0 / 5.0
1 Review
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
0
1
0
0
0
Bang For The Buck
4.0 / 5
Features
4.0 / 5
Style
5.0 / 5
Ease Of Install
5.0 / 5
Fit & Finish
5.0 / 5
Durability
5.0 / 5
Bang For The Buck
4 / 5
Features
4 / 5
Style
5 / 5
Ease Of Install
5 / 5
Fit & Finish
5 / 5
Durability
5 / 5
It's a Yosh!
A+ for looks and fitment as always with Yosh. Good sound, good performance. The only thing that bummed me out was that it doesn't come with the spark arrestor insert that Yosh makes for it. I had to buy it from another sight. Doesn't make any sense when Yoshimura is based in Southern California where you can't ride anywhere without a SA except the track. Bought it anyways, still a sweet silencer.
February 13, 2017
Purchased
6 months ago
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