ER350S High performance exhaust extension pipe for BMW X5. Brand new product， specially designed extension pipe. High quality， lightweight. To fit pipe size: 63mm O.D. to 60mm O.D. Notes: while assembling after the vehicles run for a first 500KM – 1，000KM ， wind again closely for bolts and counter-loose nuts， any time be care for any loosing matters.   Package Details Weight: 435.49 g Size: 30.3*16.5*11 cm Package Includes 1 × High Performance Exhaust Extension Pipe