The Race-Tech silencer is available in four different canister options: titanium, carbon fiber, aluminum and "dark" aluminum, all with carbon end caps. The Race-Tech silencer was the first Arrow silencer made with a diamond shape, rather than the standard round/elliptical shape. The diamond shape allows Arrow to reduce the silencer's dimensions, while keeping the same overall internal cross-section.
Internals of the silencers are of TIG welded stainless steel construction, and the rear end-caps and exhaust tip work in conjunction to allow the exhaust to run turbulence free and to reduce negative effects of counter-pressure. The Race-Tech exhausts also include a removable baffle (dB-killer) for optimum sound control.
From a news release