Yoshimura Signature RS-4 Titanium Exhaust System

Was $945.00 - $1,045.95 $816.99 - $941.99 You save up to $103.96 (10%)

Rating 4.93 of 5 (3 Reviews)

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Product Information

Yoshimura Signature RS-4 Titanium Exhaust System

The RS-4 not only increases power and is light, but it also has a lower centralized mass coefficient to provide better handling. Additionally, an overall improvement to the power delivery was also realized. The RS-4 is pentagonal shaped muffler that features a carbon fiber cone end cap, two staged stepped baffle and striking good looks. A tapered header pipe design is used for optimal flow and performance. The RS-4 muffler features a new front cap design that functions as a polyresonant chamber. This design makes for a quieter muffler with improved mid to top end power.

Features:
  • Titanium Head pipe
  • Carbon fiber end cap
  • Your choice of titanium or carbon fiber muffler sleeves
  • 99db sound insert installed

*Note: Optional 94db (AMA legal) and 96db sound inserts available separately.

**Note: RMX450Z includes Cherry Bomb coax relay bypass module.
  • Item # 18152
  • SKU #
  • Mfr. Part #

**Closeouts are limited to stock on hand**

FitmentView All

Honda Models

  • CRF250R : 2010–2013
  • CRF450R : 2011–2012

Husqvarna Models

  • FC 450 : 2016

Kawasaki Models

  • KX250F : 2010–2016
  • KX450F : 2009–2015
  • KX450F Monster Energy : 2009

KTM Models

  • 250 SX-F : 2012–2015
  • 350 SX-F : 2013–2015
  • 350 XC-F : 2014–2015
  • 450 SX-F : 2012–2017
  • 450 SX-F Factory Edition : 2012–2014
  • 450 XC-F : 2013–2015

Suzuki Models

  • RMX450Z : 2010
  • RM-Z250 : 2010–2017
  • RM-Z450 : 2008–2017

Yamaha Models

  • WR250F : 2015
  • YZ250F : 2014–2017
  • YZ250F Anniv. : 2016
  • YZ250FX : 2015–2016
  • YZ450F : 2010–2013

Product Reviews 1 - 3 of 3

Overall Rating: 4.93 of 5

(3 Reviews)
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What Other Riders Are Saying...

Fit

Quality

Sound

Install

Performance

Rider

Awesome product. Felt the increased horsepower and it sounded great.

Mike - June 7, 2015

(SA , TN)

Fit

Quality

Sound

Install

Performance

Yoshimura RS-4 Pro Exhaust Ti/Ti System

Excellent fit, quality and performance. In order to get the desired performance you will need to have your ECM remapped,. Yoshimura, to my disappointment will not provide FI mapping values.

VMOTO67 - January 8, 2010

(Fredericksburg, VA)

Fit

Quality

Sound

Install

Performance

yosh pipe

The pipe is awesome. It delivers more power down low and pulls through the gears thru the top end where the 09 crf 450 had a tendency to die out. Well worth the money.

jeff sniadach - May 20, 2009

(port orange, FL)