Made in Australia. 135i, 335i, 535i, Z4 – N54 twin turbo 3.0L engine. ITEM COMES WITH INSTRUCTION CD. Product Description Specifically designed to suit the latest turbocharged. Kit consists of two Dual Port or Plumb Back Kompact valves and all the necessary hoses and clamps. Kit is a performance bolt-on replacement for the factory plastic bypass valves offering greater boost response and no leaks. Easy to install and set up, the Kompact. Kit is an ideal performance upgrade for the current model N54 twin-turbo. Dual Port and Plumb Back valves are also available separately. 135i, 335i, 535i and Z4 with N54 twin turbo 3.0L engine. Dual Port Kit: Part No. Plumb Back Kit: Part No. THIS IS A BRAND NEW ITEM. This is the industry leading genuine AUSTRALIAN BRAND. Establishedin 2003, we stocks a wide range of OEM replacements and performance parts witha goal to provide customers a one stop place for all your vehicle needs. However both warehouses do carrydifferent stock, please ring up before heading down to ensure that parts areavailable. O It is the customer responsibility to contactus within this time period to be eligible for a return. O It is the responsibility of the customer toverify the correct part before ordering and installing a particular part. Emailus if you are unsure about this. If for any reason you are not happywith our products e. In this way, both parties will have a good result. THANK YOU FOR LOOKING AND WE HOPE YOU ENJOY YOURPURCHASE!