- This kit will fit your standard oem box and our own Black Widow Collector. Kit contains:- Silencer, connecting link pipe, hanger strap and mounting kit. Link Pipe Material: Titanium - Silencer Material : 304 Grade Stainless Steel + 304 Grade Blue Stainless Steel - Silencer Body Length excluding tips = 200mm - Silencer Diameter = 100mm - Silencer Code: SL20R - Silencer fitted with a removable baffle - See our Silencer Specifications Tab for length noise levels. Some remapping maybe necessary depending on set up.