Stock exhaust muffler - RTR model - black
rear exit
155 grams - 5.5 oz

HPI aluminum pipe - standard equipment 26cc fulie SS kit
rear exit
156 grams - 5.5 oz

Werks aluminum piperear exit
85 grams - 3.5 oz

Samba steel pipe - black
rear exit
297 grams - 10.5 oz

TGN race pipe - steel - mill finish
side exit
1.018 kg - 2 lb 4 oz

JetPro3 steel pipe - chrome
rear exit
425 grams - 15 o
z641 grams - 1 lb 7 oz - with silencer

Jetpro2 steel pipe - chrome w/silencer
rear exit
589 grams - 1 lb 4 oz

Mielke aluminum pipe - black
side mount
324 grams - 11.5 oz

DDM Dominator side mount steel pipe - black or chrome
side exit
724 grams - 1 lb 9 oz

TGN  X-Can aluminum - various anodized colors
rear exit
short, medium and long X-ports available various lenght/shape/material stingers available. Up, side, bottom and rear exit options
296 grams - 10.5 oz - w/long X-port and short stingers

DDM Dominator steel pipe - black or chrome - optional silencers available
rear exit
612 grams - 1 lb 3 oz

JetPro4 steel pipe - chrome
Dual bleed side mount - side exit
551 grams - 1 lb 3 oz

Bore & Stroke

HPI Baja 5B Bore and Stroke data

Available standard bore sizes:
32mm (stock 23cc fuelie)
34mm (stock 26cc fuelie)
35mm
36mm
Available standard connecting rod lengths
28mm (stock 23cc & 26cc fuelie)
29mm (1mm stroke)
30mm (2mm stroker)

Bore and stroke combinations

32mm bore + 28mm stroke = 22.5cc
32mm bore + 29mm stroke = 23.3cc
32mm bore + 30mm stroke = 24.1cc
34mm bore + 28mm stroke = 25.4cc
34mm bore + 29mm stroke = 26.3cc
34mm bore + 30mm stroke = 27.2cc
35mm bore + 28mm stroke = 26.9cc
35mm bore + 29mm stroke = 27.9cc
35mm bore + 30mm stroke = 28.9cc
36mm bore + 28mm stroke = 28.5cc
36mm bore + 29mm stroke = 29.5cc
36mm bore + 30mm stroke = 30.5cc