This system has justifiably earned the reputation of the best exhaust ever made for the Mini. Typically used with an LCB manifold it gives great performance with a mellow sound. 1.75" ID pipe, resonator & muffler ("two-box" system).Side exit. For mounting see RC-40FK. Note, when fitted in conjunction with an LCB header,C-AEG365 you will require RC40-002 short pipe or alternatively cut the front kink off the RC40-0001 pipe(from 5"-8") that is made for the freeflow manifold C-STR816. When properly installed, the system will fit up nicely into the tunnel and will not drag over bumps. LDP1 link pipe is available to fit this larger bore twin box when fitting to original exhaust manifolds on 998cc etc without using a freeflow or LCB type exhaust manifold.