The CST 4 is a huge step forward in the RB20, 225 and 250 market. This exhaust has been developed by Martin Cook. Having learnt what he needed to from sprinting an RB and that from the CST 3, he developed the ultimate RB touring pipe. Having run a competition early in 2017, we found that our CST 4 made huge differences in all RB's available. Instead of power and torque been around the 7500 RPM range, our pipe makes it round 4000 RPM. Not only that but the exhaust has managed to produce huge increases in torque, meaning finally the RB is a cylinder kit, with our exhaust, that can be ridden off the mark without huge amounts of throttle. Not only that but they are Hand Made here in Britain! Looking for a touring road RB exhaust that gets you huge amounts of torque and you don't have to ride it like a maniac then the CST 4 is the pipe for you! 

Suitable for RB Cylinders
 

Before selecting your muffler of choice we recommend checking stock levels for the specific muffler before submitting your order

PLEASE NOTE THESE EXHAUSTS DO NOT FIT SUPER MONZA OR SUPER IMOLA CYLINDERS

STAINLESS CST20006SS

CARBON CST20006CA

CARBON KEVLAR CST20006CK

ALUMINIUM https://www.chiselspeed.co.uk/store/product/CST20007AW