Powerbrake X-Line 4x4 big brake kits are engineered from the ground up to be the ultimate brake upgrades available on the world market for 4x4 vehicles. They deliver significantly improved brake performance, reduce brake fade and vastly improve pedal feel and modulation. The performance gains achieved when fitting the big brake kits vastly outweigh the benefits that can be achieved by fitting upgraded, standard diameter discs and pads. The civilian X-Line 4x4 big brake kits feature direct technology transfer from the R-Line off-road race brake systems that have been used by works race teams to win multiple FIA Cross Country World Championships as well the infamous Dakar Rally (which is regarded by many to be the most grueling motorsport event on earth).Included:✔ X-Line billet 6-piston off-road calipers (featuring stainless steel pistons, internal fluid crossovers, protected bleed screws, internal wiper seals, ultra high-temp pressure seals, all stainless steel hardware, MTR max temp recording system, and pad anti-rattle springs).✔ High-performance brake pads, pre-loaded into the calipers (featuring OE quality anti-squeal shims).✔ Large 350x34mm 1-Piece slotted discs (featuring 48 x curved/directional cooling vanes per disc, MTR max temp recording system, and the proprietary black coating that ensures the fastest bed-in time).✔ Billet caliper mounting brackets (featuring stainless steel thread inserts for the radial mount bolts for max service life).✔ Stainless steel braided brake lines (featuring stainless steel end fittings, PVC protective cover, Teflon hose inner, and 32 x braid structure).✔ All necessary mounting hardware for quick, easy bolt-on installation.✔ Comprehensive fitment and bed-in instructions.Fitment: 2005-2023 Toyota Tacoma