[crfrider04]

there are 3 choices of exhaust pipes on this site...i need help picking..

Which would give me the most power, the Big Gun system, the Pro Circuit muffler w/ a stock header, The White brothers R4 system or a BBR system.

[hondafan]

crf rider, putting a pipe on a 150 will not give you any more power than what stock offers. although it will increase airflow and definitely make it sound meaner. when i put my big gun race system on this kid asked me if i got a new bike. so just by hearing my bike he was assuming it was a new bike. i will not offer advice on the other two systems because i have never used them. but as far as quality goes, i never had a problem with mine. and certainly enjoyed the BRRRAAAAPPP!

[crfsonly]

you'll likely get as many different answers to this question as you do responses. any of those pipes mentioned will increase your performance as well as enhance the power curve (meaning give you more power in different places along the power curve as well as extend the power curve). they will all give you that 'race bike' sound too. which depending on where you ride might be a good thing or a bad thing. these pipes are also lighter than stock and let's face it...they give your bike 'that look'. i can only tell you which seem more popluar, BBR, BG, WB, PC.

good luck and let us know what you do and how well it works for you.