2006 Yamaha Raptor 700R ATV Exhaust Pipe Shootout
Dubach Racing Dr. D slip-on, $295.95; quiet-tip insert, $39.95; header, $249.95 (total: $585.85) 95.4 dBA without airbox lid; 95.7 dBA with Dr. D-modified airbox lid (higher sound level due to increased engine temp) Dubach Racing Development: 951/808-1114; www.dubachracing.com Dubach's system bumped up the power and spread it out over a broadened powerband through the gears and capped it off with more pull in the top-end. Grade: A
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