Dubach – Dr D NS-4 Full System – Aluminum Muffler with Spark Arrestor – Stainless Steel Header , Material: Aluminum 7404

$637.95

$489.28
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as of 11/27/2021 (Details)


The lightest complete exhaust system produced features massive weight savings over stock with a Ti headpipe, Ti midpipe, and Carbon Fiber Muffler. Uniquely track tested to improve hit, delivery, and pulling power with substantial performance gains while drastically reducing weight, the TI/CF look and power have no equal. Built and tested model specific, welded construction (no springs), magnesium End Cap, removable torx bolts at the inlet cap (not rivets) for easy repacking, and stepped perf-core set DR.D apart in construction, and on the track. Performance improvements over stock system. Features Stainless Steel Header, Mid Pipe, and Aluminum. Lightweight Magnesium end cap; riveted on for increased durability. Welded construction for reduced weight. Removable bolts at inlet cap for easy repacking. Includes roll style packing; extends packing life. Note: All Stainless Steel/Aluminum systems come with Spark Arrestor screenThis item fits the following models: 2006-2009 Yamaha YZ450F

Technical Details

  • Performance improvements over stock system
  • Features Stainless Steel Header, Mid Pipe, and Aluminum
  • Lightweight Magnesium end cap; riveted on for increased durability
  • Welded construction for reduced weight
  • The lightest complete exhaust system produced features massive weight savings over stock with a Ti headpipe, Ti midpipe, and Carbon Fiber Muffler. Uniquely track tested to improve hit, delivery, and pulling power with substantial performance gains while drastically reducing weight, the TI/CF look and power have no equal. Built and tested model specific, welded construction (no springs), magnesium End Cap, removable torx bolts at the inlet cap (not rivets) for easy repacking, and stepped perf-cor

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