P/N EXT4010: Yamaha Curved Header

PARALLEL WALL 1 3/4" OD TUBE, ACCEPTS 2" FLEX

P/N EXT4022: Yamaha 12.5 Deg. Angled Header

SPEC YAMAHA ANGLED HEADER, 12DEG, HI VEL SPEC HEADER, TO BE USED WITH THE EXT6020 BOX MUFFLER

P/N EXT4030: Yamaha 12Deg Header

YAMAHA HEADER 12DEG PARALLEL WALL, USED WITH HPV & RLV 1, 2, & 3 PIPES, IKF SPEC HEADER.

P/N EXT4112: L-Series 12.5Deg Header, Short Tapered

L-SERIES ANGLED HEADER, 12.5 DEGREE, SHORT TAPERED, ALSO USED WITH A-SERIES PIPES.

P/N EXT4116: L-Series Header, Straight

L-SERIES STRAIGHT HEADER, SHORT TAPERED, ALSO USED WITH A-SERIES PIPES.

P/N EXT4200: RLV X30 Spec Reed Jet Header for Enduro, Straight

P/N EXT4228: Parilla BR-125 100 Reed Jet Header

7 DEGREE UP, 1 3/4" PARALLEL TUBE FOR 1 7/8" FLEX. NOT LEGAL IN WKA REED CLASS.