Janspeed 4 in 1 manifold
The Janspeed manifold is one of the best available for the new MINI, with a choice of a removable high-flow sports catalyst (cat) or de-cat pipe. The system uses a 4-1 downpipe design with increased diameter bore. There are noticable power gains to be had by fitting the manifold, it helps to improve mid-range power and torque. As the cat/de-cat section is removable it's easy to change between high-flow cat or de-cat pipe. The de-cat pipe is for off-road/track use only as MINI's legally have to run a cat for road use. Image shows a Janspeed manifold with high-flow cat. Click details for further information and a larger image.