there's a limiter in the silencer Cut it off an take it apart you will find a metal plate its twisted and pressed into the silencer tube Remove it and it goes double as fast Pretty cheap pipe with good performance for stock and slighty boosted setups
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great pipe
October 9, 2013
taco eater :
moped man from portland , OR United States
fits well liked it so well have two bang for buck its great power hits every where even on stockish engine just jet up and go start with a 58 to 62 with stockish engine im jetted at 59 at 50cc and 60 on a 50cc booth run fine the 60 is on a 13sha carb the 59 is on a grande 12.12 and it rocks