aFe Power Magnum FLOW Pro 10R Oval Air Filter Element - 9 in x 7 in Top - 9 in x 7 in Base - 7 in x 4-3/4 in Flange - 9 in Tall - Blue Youth Helmets & Accessories Their optimized winding

Their optimized winding

and the bal-anced leverage pulls the cap out of the block with one swift motion

Two layers of knitted Nomex are used with top and bottom gauntlets

While versatility is one of the X1

Same as 100R and 200L except for OPPOSITE SIDES

aFe Power Magnum FLOW Pro 10R Oval Air Filter Element - 9 in x 7 in Top - 9 in x 7 in Base - 7 in x 4-3/4 in Flange - 9 in Tall - Blue Youth Helmets & Accessories Their optimized windingThe Momentum HD is designed around a massive 1,000cfm performance 360 degree radial flow air filter with 10 layers of progressively cotton media producing 99. 47% cumulative efficiency. The unique air filter to housing interface (patent pending) allows for maximum filter size which increases the available air volume while simplifying the installation process. The air filter is wrapped in reinforced metal providing maximum strength to prevent filter