Touring pipe is made for 2 and 4 stroke and uses an internal chamber that increases power over stock
SP3 pipes have many or the same features as the touring model and is specifically made for 50cc scooters
4-Road pipes are made for large displacement scooters to add power in the mid to top end and increase top speed. Constructed of stainless steel for durability
HM 70 pipes are designed for use with 70cc kits only, constructed of stainless steel
