Torque Solution Billet Rear Differential Mount Inserts: Mitsubishi Evolution VIII-IX 2003-2006 These billet bushings are solid compared to the OEM rubber units. By replacing them with these 6061 Billet Pieces you are able to get rid of the unwanted slop and flexing of the stock units which allows for the power to go into rotating the tires, instead of flexing the rubber. Giving you better feedback, sharper response, more predictability on throttle input, along with eliminating annoying clunking during hard shifts. Benefits Eliminates the \”CLUNK\” when shifting hard Reduces wheel hop / traction loss Improved 60fts / e.t\’s 1000HP+ and 8sec e.t. torture tested 6061 Anodized Billet Applications 2003-2006 Mitsubishi Evo 8/9 What\’s In The Box? (4) Bushings Warranty Manufacturer Limited Lifetime Warranty