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Yoshimura YZ450F 18-19 / WR450F 19-20 / YZ450FX 19 RS-4 Stainless Full Exhaust, w/ Aluminium Muffler, image 1

Yoshimura

Yoshimura YZ450F 18-19 / WR450F 19-20 / YZ450FX 19 RS-4 Stainless Full Exhaust, w/ Aluminium Muffler

ExhaustsSKU YO-234820D320

Cheapest we found

$1,455.95

at XPERT Moto Gear

$1,455.95 lowest$1,599.95 highest

7 recent in-stock prices · spread $144.00 (10%)

Based only on in-stock prices checked in the last 30 days. 7 stores checked; dates for every store are shown below.

Recorded store prices

Prices we recorded when we last checked each store for this exact variant.

XPERT Moto Gear$1,455.95CheapestIn stockBikebiz$1,479.95In stockMotoHeaven$1,519.99In stockSuperbike Supply$1,523.76In stock
3 stores at this price$1,599.95
Highside ShopIn stockmay be out of dateMotorcycle Stuff AustraliaIn stockMXstoreIn stock

Product details

Yoshimura YZ450F 18-19 / WR450F 19-20 / YZ450FX 19 RS-4 Stainless Full Exhaust, W/ Aluminum Muffler

For 2018 Yamaha made some major refinements to the already potent YZ450F. Adding to the usable and tractable power is how we make the new YZ450F even better.

Now there can be more power to rip holeshots, yet making the bike user friendly at the end of the moto when your right hand gets a little frisky.The new Yoshimura RS-4 Signature Series full system adds 2.8% more h.p. and 1.4 ft-lb. more torque to give the rider better, more linear throttle response.

Proudly made in the USA!

  • Stainless steel header and tail-pipe
  • Repack Kits, optional Inserts and Spark Arresters are available for all models

        This product was designed to fit on a standard equipped motorcycle, as delivered from the factory. OE and aftermarket accessories not found on a bike as delivered from the factory may not be compatible with this product.

        Attention international customers: This product was designed and tested to be compatible with vehicles in the U.S. marketplace only. Compatibility, including fitment and performance, may vary by marketplace.

        Fitment:

        • Yamaha WR450F 2019
        • Yamaha WR450F 2020
        • Yamaha YZ450F 2018
        • Yamaha YZ450F 2019
        • Yamaha YZ450FX 2019

        Price history

        Recorded changes for this exact variant.

        Step chart of dated store-price observations. Solid lines show confirmed crawl coverage, dashed lines show overdue missed-check spans, and every line stops at the last confirmed price.

        1. 1XPERT Moto Gear5 points · last checked 22 Aug 2026
        2. 2Bikebiz2 points · last checked 21 Aug 2026
        3. 3MotoHeaven3 points · last checked 21 Aug 2026
        4. 4Superbike Supply3 points · last checked 21 Aug 2026
        5. 5Highside Shop1 point · last checked 8 Aug 2026
        6. 6Motorcycle Stuff Australia1 point · last checked 21 Aug 2026

        1 more store series is not shown to keep the chart readable.

        Solid steps show periods confirmed by the store’s change-only price history and completed crawl record: if the price had changed at a check, another point would appear. Dashed steps show overdue periods with no completed crawl confirmation. Every line stops at that listing’s last confirmed check and is never extended to today. Prices are not live and may have changed since the last point shown.

        How we collect and compare prices
        Cheapest we found: $1,455.95 · XPERT Moto GearJump to comparison