Gytr ns-4 exhaust system

A.G130
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A.G130
Anyone have one of these on their yzf I can't find any information on this exhaust. What are they like sound/performance.
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Rider 5280
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Rider 5280 12/16/2020 9:22pm
12/16/2020 9:22pm Edited Date/Time 4/24/2021 8:36am
NS-4 is a Dubach Racing exhaust system.

They have been my favorite for a long time (have had 5 systems). Really meaty, torqey power. Doug Dubach used to be a Yamaha factory development rider (and pro) and his philosophy is strong, usable power that makes you faster. You can really see this when you compare his system to others.

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