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Moose Competition Repack Cartridges for 4 Stroke OEM Silencers
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Find the Moose Competition Repack Cartridges for 4 Stroke OEM Silencers that fits your specific machine.
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25% lighter than stock packing
Lasts 5-10 times longer than glass mat packing
Offers consistent packing density
Cuts installation time in half
Outer casing made from carbon-coated fiber, which remains intact for removal of used part
Made in the U.S.A.
Studies have shown that fresh muffler packing can produce an almost 2 HP gain (from 7000 to 8000 rpm). The first place to lose packing is where the muffler canister meets the mid-pipe. This is caused by the increased turbulence where the pipe enters into the large chamber. As turbulence increases, so does the back pressure against the exhaust valves. Excessive back pressure reduces scavenging, which prevents fresh fuel from entering the cylinder. Low-to-mid throttle response suffers the most, and small displacement engines will fall flat sooner. With continued use, a worn out muffler can turn brown from the excessive heat, and as the muffler canister heats up, the packing fiber becomes more brittle and fractures at a faster rate. Avoid power loss, keep your muffler freshly packed with these Moose Competition Repack Cartridges for 4 Stroke OEM Silencers.
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