ID of inlet is 57mm (your pipe OD should be 2.25). Complete Kit - All Required Parts for easy installation included. The sound of the turbo spooling and blow off valve is amplified with these open filters.
This intake system completely replaces your restrictive factory air box assembly. 2011 E82 1M Twin Turbo 3.0L. The item "For BMW N54 135i 335(x)i 535(x)i Z4 35i 3.0 Hi FLow Cone Filters Air Intake Kit" is in sale since Tuesday, December 29, 2020. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Air Intake & Fuel Delivery\Air Intake Systems". The seller is "1st-racing" and is located in Rowland Heights, California.
This item can be shipped to United States, all countries in Europe, Canada, Australia, Mexico, Japan.