The nasty jack pipe may not be the most INSANE pipe, but it performs MUCH better then any mz65 knockoff pipe. It is roughly $60, but it is worth every penny.
I use this pipe on my YD100 and Triple 40, and it rips right out of the gate. This pipe is more or less a bolt-on for INSTANT power, but this pipe REALLY shines when doing basic port work and a reed valve. Also make sure you are running a good spark plug (NGK BR7HS plug is the best) and you retune the carburetor with the exhaust.
The nasty jack pipe may not be the most INSANE pipe, but it performs MUCH better then any mz65 knockoff pipe. It is roughly $60, but it is worth every penny.
I use this pipe on my YD100 and Triple 40, and it rips right out of the gate. This pipe is more or less a bolt-on for INSTANT power, but this pipe REALLY shines when doing basic port work and a reed valve. Also make sure you are running a good spark plug (NGK BR7HS plug is the best) and you retune the carburetor with the exhaust.