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Dirt Bike Brands - Other
YZ 426 too LOUD!!!!!!!
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[QUOTE="toddw1016, post: 18382, member: 21686"] I finally received the big gun exhaust (oversize quiet series with the quiet insert) yesterday, and put it on last night. At idle the db reading at 20" 45 degrees from the exhaust is 84 db. I actually had the bike running in the garage and carried on a conversation with my wife at the same time, that's something new [img]http://dirtrider.net/ubb2/smile.gif[/img] With the bike at idle I could actually hear sounds from the engine (i.e. valves?, lifters? etc...). At a generous 1/2 throttle it was reading 100 db. The cool thing was it was actually breathing well. I had a white bros e-series and bought their quiet insert. When you put the e-series quiet insert into their exhaust I could notice the engine struggled to rev due to the restricted exhaust flow, not so with the big gun. It is dramatically quieter than the e-series, it has been so long since I had the stock system on that I don't know how it compares to stock, and don't have any db readings from the stock system. I have only ridden it down the driveway and back based on the fact that it was dark when I finished last night. I'll post a ride report after I get the chance to ride it. Barbuster, I know you are after 94 db, what rpm distance from exhaust etc.. any particular way you want me to measure it? '98 yz400f '99 kk80 '99 ky60 '99 pw50 '98 Lakota 300 [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
YZ 426 too LOUD!!!!!!!
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