For Models: TRX 400EX (1999-2014)
1. Make sure the bike is on level ground and completely cooled down.
2. Loosen the Stock Clamp that holds the Silencer and Head Pipe together.
3. Loosen the Silencer Mounting Bolts.
4. Brace the back to the Silencer with one hand, and take the Bolts the rest of the way out.
5. Pull back and twist until the Silencer is removed.
6. Loosen the Bolts on the Header Port. Once loosened, support the pipe with one hand and remove.
1. Slide the Clamp over the end of the HMF Silencer and then slide the HMF Silencer onto the Head Pipe. Some pushing and twisting may be necessary.(See Figure #1)
2. Mount the Silencer with the stock Bolts and the supplied hardware.(See Figure #2)
3. Tighten the Clamp to secure the Silencer to the Head Pipe.(See Figure #3)
4. With most applications, re-jetting is a necessity.
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