Yoshimura - RS-4 Signature Series Full System - Kawasaki KX450F 2016 - 2018
Yoshimura Full System RS-4 Silencer - Stainless Header Aluminium Silencer - Carbon Cap
The work that went into developing the RS-4 muffler has paid big dividends in Off-road Racing; winning multiple Supercross and Motocross titles since it's inception. We've developed the current generation RS-4 based on that research & development, and the result is a unique design that provides an unrivalled combination of power and quiet exhaust tone. The RS-4 features a Polyresonant duplex chamber and two-staged stepped baffle for increased performance, while a carbon cone end cap finishes off its innovative styling.
Front muffler cap functions as a polyresonant chamber which helps reduce noise
Two-stage stepped baffle
Carbon fiber end-cap
Stainless steel header and tail-pipe
Weight: 0.4 lbs lighter than stock configuration
Repack Kits, optionalInsertsandSpark Arrestersare available for all models
UK Orders Free Delivery. All Orders Over £300 From Europe & Scandinavia FREE Shipping
Even Strokes use Hermes or DHL depending on the size and value of the order. You will be supplied a tracking number and we will add your email address and phone number to the consignments so you will receive updates putting you in control of your delivery.
Our ‘Free Postage’ includes UK Mainland. All Orders Over £300 From Europe & Scandinavia have FREE Shipping. Charges apply to Ireland, Islands and Scottish Highlands and Europe ( Under £300 ). We aim to dispatch orders with 1 working day of the time we receive an order but this can vary on different products.We can post worldwide but please message us first for a quote as again.
We are happy to refund, or exchange goods based on the following conditions:
Items must be returned to us within 30 days of the day you placed the order.
Buyer pays return postage, unless otherwise agreed by us.
The goods need to be complete and undamaged with the original packaging.
Refund will always be offered as credit to use in store, in some cases we will offer a full cash refund.
If items are not quite what you thought, e.g misleading photo/description we will offer a merchandise credit. In most cases this will be minus shipping cost.
Although if the item(s) are broken or faulty, or if it was a blatant mistake we’ll pick up everything. Bottom line, we want you to be happy!