The P3 is designed to be used in conjunction the supplied spark arrestor screens in our Stainless/Aluminum ATV & MX exhaust systems. A straight-through sound diffuser, the TBR P3 PowerTip quiets the pipe to 90-96 dB with no significant loss of horsepower. An easy and cost effective method of helping to keep your vehicle in compliance with new noise regulations. The P3 is not intended for use with out Titanium or Carbon Fiber ATV/MX muffler canisters or the Rhino 660 exhaust systems. Easy to install - simply unbolt your existing M series endcap, drop in the P3 and reassemble.