LEXUS IS300 LS Brake upgrade kit with RCAs and Stainless Inserts w/ M12 Offset Threaded Hole! Kit comes with 17mm RCAs w/ class 12.9 mounting hardware and (4) Stainless Eccentric Threaded Caliper Mounting Adapter Inserts for mounting LS400 BRAKE CALIPERS to the Lexus IS300 that came with factory M14x1.5 caliper bracket mounting bolts OR whose caliper mounting holes on the steering knuckle measure approximately 11.875 (inside edge to inside edge). REVISION AC: UPDATED INSERT DESIGN FEATURES KNURLED OD WHICH PROVIDES A MORE SECURE, SOLID FIT IN THE CALIPER HOUSING. All components are machined in-house and undergo individual quality control inspection during production and before they go out the door.If you have any questions, please don't hesitate to contact me and I will get back to you immediately. Thank you for looking, don't forget to check out my other items for sale! The item "LEXUS IS300 BRAKE UPGRADE STAINLESS LS400 BRAKE CALIPER ADAPTERS + 17MM RCA KIT" is in sale since Thursday, July 16, 2020. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Brakes & Brake Parts\Caliper Parts". The seller is "falconguy2000" and is located in Arlington, Texas. This item can be shipped to North, South, or Latin America, all countries in Europe, all countries in continental Asia, Australia.