Yoshimura RS-12 Full Exhaust System

S.Steel/Alu/Carbon Cap

to fit 
Yamaha YZ450F

2023
2024


The mighty Yamaha YZ450F is practically all new for 2023 and ready to inspire new MX champions everywhere.

Lets get right to it...the stock system on the Yamaha YZ450F was hard to improve, but we did! The magic of the right tube diameter, right length then our RS-12 was called in to do the work that it was designed to do...perform! Adding power and torque everywhere across the spectrum of the new YZ450 wasn't easy but it was accomplished. Max HP is increased by 8% and max torque is bumped an incredible 13%!

The new RS-12 system unlocked some key power in the right places. The lower and mid RPM range is really enhanced while not disrupting the handling characteristics on the new YZ chassis. Riding with this new added power really made testing the new system a fun project.

Other highlights of the RS-12 system are the machined joints on the key tube junctions to insure a good clean interface between joints. A built in resonator chamber on the muffler, a matte carbon fiber end cap and a PTF low volume sound insert completes the RS-12.


The RS-12 proudly designed, developed and made in the USA.

SIGNATURE SERIES EXHAUST SYSTEM
Introducing Signature Series by Yoshimura - an offering of exhaust systems that a dealer can install with confidence. Our Signature Series lineup is the answer for today's dealer who is faced with a challenging marketplace. The applications for the Signature Series line cover the entire powersports spectrum, including many of our off-road applications. Every one of our Championship Winning Motocross exhaust systems and nearly all of our ATV/Side-by-Side applications are members of the Signature Series Family. All Signature Series components are tested, documented, and marked as required by federal and state regulations.


YS 234840S320

Opening Times : Tuesday to Saturday   9am - 5pm



*****PLEASE NOTE WE ARE CLOSED MONDAYS*****


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Pictures are for illustration purposes only.

You will be sent the correct ITEM in relation to the listing application.

If you are unsure as to the exact year and model of your bike please message us before

buying as this saves your disapointment when it turns up and doesn't fit your bike.


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We are committed to providing an

Efficient, Courteous and Friendly Service.

We will try to make this transaction a smooth and pleasant one.

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***Please understand we do not control the postal service***

***Any delivery delays are beyond our control***

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**** FREE POSTAGE IS FOR MAINLAND UK DESTINATIONS ONLY ****


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THE POSTCODES LISTED BELOW ARE EXCLUDED FROM FREE DELIVERY 

The Highlands and Islands of Scotland.

Postcodes IV, HS, KA27-28, KW, PA20-49, PA60-78, PH17-26, PH30-44, PH49-50, ZE. 

Northern Ireland, Isle of Man and Isles of Scilly. Postcodes BT, IM, TR21-25.


PLEASE ASK IF UNSURE??

WE ARE HAPPY TO PROVIDE A DELIVERY QUOTE

ITEMS WILL NOT BE SHIPPED WITHOUT THE PROPER SHIPPING COSTS

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IF ANY CUSTOMS OR IMPORT DUTIES ARE TO PAY

IT IS THE BUYERS SOLE RESPONSIBILITY AND ALL PARCELS ARE SENT WITH

FULL  INTERNATIONAL TRACKING 

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Returns policy

You can return or exchange any new, unused and unaltered item within 14 business days of receipt of your item.

Refund Policy

If you are not 100% satisfied with your purchase, you can return your order for a full refund

(minus any initial postage costs) to your original payment method.

Products must be in new, un-used condition and include the original box and/or packaging with all tags included. Once your return

is received and inspected by us (usually within 48 hours of receipt), your refund will be processed and a credit will

be applied to your credit card or original method of payment. Please note that depending on your credit card company, it may take

an additional 2-10 business days after your credit is applied for it to be posted to your account.

You are responsible for all shipping costs associated with getting your order back to us.

Items should not be shipped back to the manufacturer;

but will need to be returned direct to us at business address supplied to Ebay

Exchanging merchandise

If you would like to exchange any merchandise for a different size/product this can be done has soon has we have received the

original item/items back at our retail site, it can then be processed and completed on your behalf.

 Once we have checked and processed the item/items   you are returning, a refund can be issued back to your credit card or

original method of payment.

Used / Damaged Merchandise

Any merchandise which shows signs of use,   or otherwise is in a condition other than it was received cannot be returned.

Packaging/Tag

Please make sure all original packaging, tags, etc., are included and intact. If you are missing items or tags, please contact us prior

to returning the item.

Apparel items must be packed in their original garment bag (or equivalent plastic bag protection).

Items that are returned with missing or damaged packaging, tags, components, or hangers may be returned to the customer.

Hard Parts, Tools, Tires

Any part which has been installed or shows signs of attempting to be installed on a vehicle is non-returnable. Tools which have

been removed from their packaging are non-returnable.

No returns or exchanges on

Face shields which show signs of installation. Open box or installed electrical items. Fibreglass parts, including bodywork, under

tails, and huggers. Used merchandise.

All Returns 

Customer is responsible for shipping items back to us with the method/carrier of their choice. All shipments must be paid for.

Returns Process:

Step 1: Send us a message via Ebay

Step 2: Print out your Authorization for return of goods

Step 3: Follow instructions on our Authorization for return of goods

Damaged Goods:

Please let us know ASAP if any goods arrive damaged. Please keep all original shipping containers and take pictures if possible.

Damaged goods claims are handled through the shipping carrier. We will assist our customers in these claims. We only ask that

customers be patient as sometimes this process can take longer than any of us would like!