Dr. D

Dr. D NS-4 Quiet Core Insert

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Item #DRD000A

Dubach Racing Development (DR.D) started with the goal to produce the best exhaust systems and related MX products that actually make your bike run better, not different. DR.D has worked with the best, tested virtually every motocross bike make over the past 10 years, and still works hand in had with the Yamaha Testing division. They know the effort that must go into a product for it to perform at a level that exceeds the admittedly extremely good stock bikes and ATVs. DR.D puts 100% effort into their products and constantly strives to achieve your business.

The Quiet Core Insert is designed to be used with DR.D NS-4 exhausts.
The insert can be installed and removed very quickly.
As the name suggests, it significantly reduces the sound level.
Sold individually.

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Answered: 3

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Murph

Q: Will this fit the older D Shaped exhaust?

Over 3 years ago

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MotoSportExpert

Top 1 Contributor

Over 3 years ago

A: No, this ONLY fits the NS-4 series exhaust

BobA67

Q: Will this fit in my 1999 ow 80 stock muffler system

Over 5 years ago

dr d ns-4 will this fir in my stock Pw 80 1999

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MotoSportExpert

MotoSport Staff

Over 5 years ago

A: This will only fit the DR.D NS-4 exhaust systems. It will not fit the stock exhaust on your 1999 PW80. Unfortunately there are no after market replacement cores for your PW80. If you can give us a call with what issue you are having with your current exhaust, we will be more than happy to assist you with a solution.

ronnie

Q: I need to quiet down a kx 80 do you have a packing kit or replacemrnt mufflers

Over 5 years ago

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MotoSportExpert

MotoSport Staff

Over 5 years ago

A: You can repack the muffler as long as it is still in good shape to help quiet it down. Unfortunately there wont be any inserts or aftermarket exhausts available for the 1984 KX80 any longer. You may be able to find some good used silencers for it, but that will be your best bet. The FMF silencer packing would work great to repack the silencer.

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Product Variant	Manufacturer Part #
Dr. D NS-4 Quiet Core Insert	2906

Dr. D NS-4 Quiet Core Insert

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