Dr. D NS-4 Slip-On Exhaust

Dr. D NS-4 Slip-On Exhaust
Dr. D NS-4 Slip-On Exhaust

$301.99 - $719.99
10% Off - Save up to $80.00

Description See Also: 3 Reviews 10 Questions Fitment
Item #DRD000E

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3 Reviews
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All Reviews
Yamaharley
Apple Valley, CA, USA
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Sounds really good!

Install was really easy took about 15 minutes. Sound is exactly what I was looking for and you can definitely feel power gains over the stock set up. I will run Dr D exhaust on all of my bikes from now on.

Kevin Verified Purchaser
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Great investment

Throttle response better much lighter than factory,easy to install.

calyrider Top 1000 Contributor Verified Purchaser
Pearblossom, CA, USA
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Excellent exhaust

Bolted right on to 2013 kx250f. Sounds great. looks great and the increase in horsepower is always good

10 Questions
Answered:   8
Not Yet:   2
ronnie
Location: santa ana
Q: What is the part manufacturer number so a shop can look it up. 2017 yamaha yz450f?
3 months 5 days ago
ronnie
Location: santa ana
Q: What is the part manufacturer number so a shop can look it up.?
3 months 5 days ago
xsvmachine95
Location: Cadillac, MI 49601, USA
Q: Can I buy the Dr. D Slip-On and buy the header later?
Over 7 months ago
MotoSportExpert
Expert MotoSport Staff
Over 7 months ago
A: No sorry, Dr D does not offer the header separately.
Zeke21
Q: How much does the aluminum drd slip on pipe weigh for a 2015 yz250fx?
1 year 2 months ago
MotoSportExpert
MotoSport Staff Expert
1 year 2 months ago
A: Approximate weight would be 6.5lbs.
eddie
Location: Ashland, VA 23005, USA
Q: Is this exhaust louder or quieter then my stock one on a 2008 KTM 450XC-F?
1 year 6 months ago
MotoSportExpert
Expert MotoSport Staff
1 year 6 months ago
A: The Dr. D NS-4 Slip-On Exhaust would likley be louder than the stock muffler on your 2008 KTM 450XC-F.
Drew
Location: Kentucky
Q: Will it fit my 2015 yfz 450 with a stock header?
2 years ago
MotoSportExpert
MotoSport Staff Expert
2 years ago
A: The Dr. D NS-4 Slip-On Exhaust will work with the stock head pipe. However it is not available for the 2015 YFZ450 at this time.
justin
Location: california
Q: I have a 2014 kx 450f if i buy this slip on and use it with my stock header could i later buy a dr. D header and not have to change the slip on?
2 years 9 months ago
MotoSportGrantK
Top 10 Contributor Top 1 Contributor Expert MotoSport Staff
2 years 9 months ago
A: Yes, according to Dr. D if you purchase the NS-4 Slip-On for your 2014 Kawasaki KX450F you can purchase the header later and not have a fitment issue. Keep in mind that you can't do this with every bike, but for your 2014 KX450F you can.
BlakeSteak317
Location: Union, Mo
Q: This says it fits my 2014 crf250, but it doesnt say that its duals. will this convert my bike to single exhaust or does it come with two silencers?
2 years 10 months ago
MotoSportRyanT
MotoSport Staff Expert
2 years 10 months ago Location: Portland, OR, USA
A: This would be a single slip-on muffler for your bike. All the Dr. D Exhaust systems made for the 2014 Honda CRF450R would convert the bike to a single muffler instead of dual mufflers.
crfdude25
Q: Is the spark arrestor that comes with the exhaust US Forest approved?
Over 3 years ago
MotoSportExpert
MotoSport Staff
Over 3 years ago Location: Portland, OR, USA
A: Yes, the included spark arrestor is USFS approved.
calyrider
Top 1000 Contributor
Over 3 years ago Location: Pearblossom, CA, USA
A: Yes... the spark arrestor is approved as we were allowed to ride trails with it. It can separately and included an allen wrench to install it
BlackBetty229
Location: Maryland
Q: Will this slip onto an existing DRD header pipe, a stock header pipe, or both?
Over 4 years ago
I have an existing DRD silencer and header on my bike. The silencer cracked and I need to replace it. Will this slip right onto the existing DRD header? At the same time, can I also slip it onto an existing STOCK header?
MotosportStaff
MotoSport Staff
Over 4 years ago Location: Portland, OR, USA
A: Yes, the Slip-On will work with the header on your 2009 Kawasaki KX250F. At the same time, the Slip-On will work with the stock header.
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