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Yoshimura Street Series RS-4 Stainless/Stainless Slip-On

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Yoshimura Street Series RS-4 Stainless/Stainless Slip-On
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Yoshimura Street Series RS-4 Stainless/Stainless Slip-On

Our Price: $344.99$549.99

MSRP: $363.15 - $578.94 - You save up to $28.95 (5% off)

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Details

    The work that went into developing the RS-4 muffler design paid big dividends in 2010 with winning the AMA 450 Supercross and Motocross Championship series, and again in 2012 winning both 250 Supercross Lites titles. That same R&D has been directed to developing the current generation RS-4 for Road Racing — a unique design that provides an unrivaled combination of power and a quiet exhaust note. The RS-4 features a Polyresonant duplex chamber, a two-staged stepped baffle and an innovative carbon cone end cap.
  • Pentagonal shaped sleeve.
  • Carbon fiber end-cap.
  • Stainless steel tail-pipe.
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Yoshimura Street Series RS-4 Stainless/Stainless Slip-On Reviews

Each review submitted enters you into a
$100 gift card monthly drawing and a
$500 gift card quarterly drawing!
 
5.0 / 5.0
2 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
2
0
0
0
0
Value
4.5 / 5
Durability
4.5 / 5
Ease of Installation
5.0 / 5
Fitment
5.0 / 5
Performance
5.0 / 5
Finish
5.0 / 5
Features
5.0 / 5
Recommend it?
Yes (2)
Value
4 / 5
Durability
4 / 5
Ease of Installation
5 / 5
Fitment
5 / 5
Performance
5 / 5
Finish
5 / 5
Features
5 / 5
Recommend it?
Yes
Really surprised how this opened up the KTM 1090R.Breathes better..Sounds better..Hope it holds up..Only wish it had a heat shield.

-m-2019 KTM 1090 Adventure R--
June 22, 2019
HURRICANE, UT, US
Age: 45-64
Purchased
6 months ago
Gender:
Male
Weight:
191 - 220 lbs.
Height:
5'10 - 6'0
Value
5 / 5
Durability
5 / 5
Ease of Installation
5 / 5
Fitment
5 / 5
Performance
5 / 5
Finish
5 / 5
Features
5 / 5
Recommend it?
Yes
Yoshimura rs-4 and Honda Africa twin outstanding combination
Best Bolt on aftermarket part I've bought for the twin!! Superb quality perfect fit awesome sound stunning looks. and 4-5 pound weight savings over the stock can The yoshimura rs-4 unlocks the at's inner beast and the true sound of that parralel twin is unleashed! I wouldn't hesitate to recommend to anyone this muffler!

-m-2016 HONDA Africa Twin DCT CRF1000D--
rear view  non restrictive
Excellent welds  quality fitment /fasteners
Side veiw  close
Side view
October 31, 2017
Avondale , AZ, US
Age: 45-64
Purchased
over 2 years ago
Gender:
Male
Weight:
191 - 220 lbs.
Height:
5'10 - 6'0
Each question or answer submitted enters you into a:
$100 gift card monthly drawing and a
$500 gift card quarterly drawing!
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 14 questions Browse 14 questions and 13 answers
how much extra HP does this expect to increase on a KTM 1090R??
Brian S on Oct 2, 2018
BEST ANSWER: The power that the RS-4 provides is second to none, delivering a 3.1% max gain in horsepower and a 2.7% max gain in torque. The sound the RS-4 provides is throatier, and with over a 5 lbs. weight loss,
How tall is the bike?
A shopper on Apr 10, 2017
BEST ANSWER: The bike pictured is not for sell. This is just for the slip on system.
by adding this exhaust does motor need to be remapped?
George N on Jul 31, 2018
BEST ANSWER: On most bikes no but what are you wanting to install it on.
Is this product refurbished? I'm questioning it because of how cheap the price is.
michelle b on Oct 14, 2017
BEST ANSWER: No, this will be a brand new slip- on system.
Is it the bike being sold or only pipes?
A shopper on Oct 4, 2017
BEST ANSWER: This is for the Yoshimura Slip on exhaust. The bike is not for sell. I'm sorry for the confusion.
How many cc?
A shopper on Sep 18, 2017
BEST ANSWER: This item is for the Yoshimura Slip- On Exhaust. The bike in the picture is not for sell.
How fast does it go?
billy s on Sep 10, 2017
BEST ANSWER: Unfortunately, the bike is not for sell. This is for the Yoshimura exhaust system.
How tall is the bike?
A shopper on Sep 6, 2017
BEST ANSWER: Unfortunately, the bike is not for sell. This is for the Yoshimura Exhaust system. I'm sorry for the confusion.
How many gears does it have?
Jose M on Aug 25, 2017
BEST ANSWER: The bike is not for sell. This is just the Yoshimura exhaust system.
How fast does it go?
Jose M on Aug 25, 2017
BEST ANSWER: The bike is not for sell. This is just the Yoshimura exhaust system.
Is this for the whole bike or just parts?
Julian H on Dec 17, 2016
BEST ANSWER: This is just for the exhaust.
would it be good for a 6 foot 180 pound teen?
A shopper on Dec 15, 2016
BEST ANSWER: This pipe is a good upgrade for anyone looking for a little extra power and a little less weight on their bike.
Does the yoshi come with a spark arrester?
A shopper on Dec 9, 2016
BEST ANSWER: Yes, it comes with a spark arrestor insert.
How much weight do this product hold ?
A shopper on Jun 20, 2017
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