dude dumb ? how would a stock blaster beat one with a full race pipe? you sound like you know very little about the way a motor and exhaust system compliment eachother, a stock pipe is very restrictive to your motor. when you put a performance pipe on it it increases the flow and reduces back pressure. in laymans terms blaster goes faster. now on the other hand, if you had only the toomy and he had a different performance pipe it would be different, the design of the pipe allows different ranges of power. but stock vs. anything performance will always loose if you ride it right. thats why they make "performance" parts.