Back in Stock! AGV K6S Helmet. Shop Now

Up to 60% Off Discount Depot Sale. Shop Now

Get $15 Cash, Free 2 Day Shipping & More Perks With RPM*

JavaScript Disabled

To get the full Cycle Gear experience, enable JavaScript in your browser settings and refresh this page.

Uh oh - Our system doesn't think this part will fit your 1950 Harley Davidson Servi-Car (G) 45ci (change vehicle selection)

Dubach Racing NS-4 Full Exhaust System Yamaha YZ450F 2023-2025

Read 1 Review Write a Review

Black

Fullscreen Zoom

View Images (2)

$829^.⁹⁵$859^.⁹⁵

Fast Lane

Finish:

Blemished/Refurbished

This item is available as a Blem/Refurb. These are items that cannot be sold as "New" merchandise and are limited to stock on hand. See the product details for a description of the product's condition.

Members get up to $56.50 in total value. Join Now

Ships Free to Cycle Gear Stores!

The Cycle Gear Difference

Free Shipping Over $49^.⁹⁹
30-Day Best Price Guaranteed
No-Hassle Returns View Details

Dubach Racing NS-4 Full Exhaust System Yamaha YZ450F

Discover the ultimate blend of power, precision, and performance with DR.D Exhausts – where Doug Dubach's passion for perfection meets your desire for unrivaled performance on the track.

Features:

Unparalleled commitment to track testing for top-notch performance
Each exhaust is a unique masterpiece, designed and fine-tuned on the track
Doug Dubach's knowledge ensures high-quality development
Stainless steel & aluminum construction
Spark arrestor screen included
Made in the USA

Note: Images are for reference only.

Read More

Uh oh - Our system doesn't think this part will fit your 1950 Harley Davidson Servi-Car (G) 45ci (change vehicle selection)

Fitment Notes & Exceptions

This product is intended for offroad / track use only. This product is not intended for on-road use and may not be legal for on-road use in your jurisdiction.

Yamaha: YZ450F 2023, 2024, 2025; YZ450F Monster Energy Race Edition 2023, 2024, 2025

This item is also available for 24 other models:

Honda: CRF110F 2019-2026; CRF150F 2006-2017; CRF150R 2007-2026; CRF250R 2006-2009

Kawasaki: KLX110 2002-2020; KLX110R 2021-2026

Suzuki: DR-Z110 2003-2005

Yamaha: TTR110 2008-2015; TTR110E 2008-2021; TTR125 2000-2015; TTR125E 2000-2016; TTR125LE 2003-2026; TTR230 2005-2026; TTR50 2006-2017; WR450F 2019; WR450F 2020; YZ250F 2019-2026; YZ250F 50th Anniversary Edition 2024; YZ250F 70th Anniversary Edition 2026; YZ250F Monster Energy Race Edition 2024-2025; YZ250FX 2020-2021; YZ450F 2018-2019; YZ450F 2020-2022; YZ450FX 2019-2021

Product Style	Item #	Store SKU	Manufacturer Product #	Availability
Product Style Black	Item # 10346848	Store SKU	Manufacturer Product # IKP-8001-BLK	Availability Available: Ships in 1-2 business days
Product Style Brushed	Item # 10346847	Store SKU	Manufacturer Product # IKP-8001	Availability Available: Ships in 1-2 business days

$39.99/yr.

Spend Less. Ride More.

5% RPM Cash Back*
10% Off Over 70 Brands
$15 in RPM Cash When You Join
Free 2-Day Shipping & Free Returns*
And more!

Become a member today! Learn More

By purchasing and enrolling in Riders Preferred Membership, you agree to the Program Terms and Conditions. *Some exclusions apply: 10% RPM discount applies on full price and sale price Exclusive Brands. 10% RPM discount applies on additional select brands at full price. Exclusions apply. RPM free 2-day shipping applies on qualifying items, contiguous U.S. only. Not available for AK, HI, or U.S. Territories. View shipping policies. RPM free returns apply on qualifying items and are processed on standard return timeline, contiguous U.S. only. View return policy.