NOTES: Designed to fit a silencer with a 51.5mm / 2inch diameter. Description: Condition:100% Brand New Material: High Quality 304 Stainless Steel And Aluminum Alloy Package included: 1 Set Exhaust Link Pipe The Fact: The link pipes and header pipes are designed by our technicians employing the acquired experience. Made of High Quality 304 Stainless Steel, they are developed using specific dimensions for each model with the aim of have a saving in terms of weight. The streamlined design reduces weight, offering a deeper exhaust note. Stock exhaust, or any aftermarket slip-on, will fit this replacement. Factory bushes and frame mounting points ensure compatibility in robust, long lasting design. The hand welded, brushed finished system is a simple upgrade for anyone wanting to bring their RS 125 to life! Ultra light specification. 1mm thick 304 grade stainless tubing. OEM Compatible, Mounts In The Same Position As The Standard Header. The product CAN be installed with the al motorcycle exhaust pipe or any that fit your standard headers. This is a plug and play item, no modifications required. TIG welded for smoother internals. Fitment: For Aprilia RS 125 2018-2023 For Aprilia RS4 125 2011-2020 Note: After removing the al exhaust pipe, connect the middle link pipe to the motorcycle, connect the exhaust pipe to the middle pipe, and fix it for normal use. Easy to install, No Installation Instruction We will give you a sticker as a gift after you submit your order.