The Janspeed manifold, now available from Orranje, comes with a choice of a removable 200 cpi (cells per inch) high-flow sports catalyst pipe (CAT) or de-cat pipe (recommended for track use only) or on it's own. The manifold utilises a 4-1 downpipe design with an increased diameter bore which helps to improve mid-range power and torque. This is one of the first parts that needs to be changed in order to increase power further on the 1st Gen Mini due to the OEM manifold being very restrictive.
Will fit the following Minis -
PIPE DIAMETER SIZE O.D
Primary's 40mm / Pipe to Flex 57mm
Janspeed sports cats are only suitable for cars up to 160bhp.