GYTR® Oval Mufflers

Performance Designed based on our motocoross pipes. Offers improved power throughout the power band; 25% increase in low-end horsepower, 20% increase in midrange horsepower, and a 5.5 peak horsepower gain. 3.5 lbs. lighter than stock. QuietOffers improved power throughout the power band; 15% increase in midrange horsepower, and a 4.5 peak horsepower gain. Designed to pass the 96 dBA 20" stationary test used by some authorities in public riding areas. 3.3 lbs. lighter than stock.

Features include:

• Hard anondized aluminum shell
• 6061-T6 aluminum two-piece end cap
• Stainless steel inlet pipe
• Fixed rubber mountin system
• Removable screen-type USFS-approved spark arrestor
• Completely rebuildable

This accessory may be restricted to closed-course use. See notes below.

• Fits '04-'09 YFZ450

Note: All 2006-2009 YFZ450 models are regulated by the EPA. Because this accessory affects emissions, using it constitutes illegal tampering punishable by law unless the vehicle is only used in closed-course competition. Note: This performance accessory does not meet California standards for off-road recreational vehicle usage regardless of model year.