I had the stock pipe before and what a difference.
This pipe improved bottom, mid, and top big time.
Feels like difference bike.
yaniv - February 8, 2010
2003 CR250 Pro Circuit Works Pipe
This made a significant improvement to the complete stock form and as suggested by Pro Circuit (I ride just a few miles from there in Riverside, CA) it ran actually ran perfect with 40:1 Bel Rey H1R 821ft @65 deg. main 390;slow 32.5; needle 6BEY30-74; pos 3RD; air 2 turns; slide - 4.0 STD; S-8 nozzle (3TC-14141-S8-00). No more spooge from exhaust with improved low-mid power and noticeably sounds better. Shipping and customer service was very courteous and professional. Keep up the good business.
titusbalsac - May 13, 2009
(Newport Beach, CA)
Pro Circuit Works Pipe
This pipe is sick! It gives a gain throughout the powerband, and a lot through the mid-range. It's a great pipe!