Yoshimura Race Series RS-4 Exhaust Systems 123400D520

Write the First Review

Part Number: YSH-123400D520

$779.00

Powersport Exhaust, Race Series RS-4, Full System, 304 Stainless Steel, Natural, 304 Stainless Steel Muffler, Carbon Fiber Tip, Honda, Kit
See More Specifications | Check the Fit

Yoshimura Race Series RS-4 Exhaust Systems 123400D520

Yoshimura Race Series RS-4 Exhaust Systems 123400D520

YSH-123400D520

Not Yet Reviewed

Part Number: YSH-123400D520

Estimated Ship Date: Mar 27, 2026

$779.00

Estimated Ship Date: Mar 27, 2026 Would you rather pick it up?

Overview

Brand:
Manufacturer's Part Number:
123400D520
Part Type:
Product Line:
Summit Racing Part Number:
YSH-123400D520
UPC:
0840025904989
Powersports System Style:
Full system
Exhaust Type:
Single
System Material:
304 stainless steel
System Finish:
Natural
Exit Location:
Rear
Muffler Included:
Yes
Muffler Quantity:
One
Muffler Configuration:
Single inlet/Single outlet
Muffler Style:
Wrapped perforated core
Muffler Material:
304 stainless steel
Muffler Color:
Natural
Muffler Finish:
Brushed
Tip Included:
Yes
Tip Quantity:
1
Tip Shape:
Cone
Tip Cut:
Slant
Tip Material:
Carbon fiber
Tip Color:
Carbon fiber
Hardware Included:
Yes
Quantity:
Sold as a kit.

Yoshimura Race Series RS-4 Exhaust Systems

Yoshimura's Race Series RS-4 exhaust systems are designed with nothing but power in mind! Each Race Series system is developed in accordance with noise compliance regulations imposed by most racing sanctioning bodies worldwide. The RS-4's unique design provides an unrivaled combination of power, along with a quiet exhaust note. These systems remove a good amount of weight from the stock unit. They also feature a polyresonant duplex chamber, a two-staged stepped baffle, and an innovative carbon cone end cap. If you're looking for that competitive edge, get and install one of these Race Series RS-4 exhaust systems from Yoshimura—they come out a winner in both looks and performance!

Key features and benefits:

* Pentagonal-shaped muffler sleeve and aluminum mount bracket
* Front muffler cap functions as a polyresonant chamber which helps reduce noise
* Two-stage stepped baffle
* Durable high-grade stainless steel tapered header and mid-pipe
* Considerable weight reduction
* Carbon fiber end-cap comes with a U.S.F.S.-approved spark arrested insert installed in muffler (on most, but not all models)
* All applications are marked with appropriate EPA noise emissions labels
* Step-by-step directions and all necessary hardware included for an easy installation
* For closed course competition only; not intended for street use; this system has not been tested for EPA noise compliance

Applications

 Loading...
 Loading...

Questions & Answers

Ask a Question

What type of question would you like to submit?

I have a Customer Service question
(order, shipping, returns, protection plans, etc.). Customer Service Question
- OR -
I would like to ask other customers
a question about this Product. Product Related Question
 Loading...

Reviews Write a Review

Some parts are not legal for use in California or other states with similar laws / regulations

Modal Header

Call To Order

This is a custom order part. You can order this part by Contacting Us.

CA Warning Icon

Cancer and Reproductive Harm -- www.P65Warnings.ca.gov

Email this page

Call now to speak with a sales specialist!

Call Now!

1-800-230-3030