Borla Cat-Back exhausts feature patented, straight-through and multi-core technology to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy and the distinctive Borla Sound of Power respected by motoring enthusiasts everywhere. Each system is built from premium austenitic stainless steel, superior to T-400 series knockoffs, to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow and power, and precision computer-controlled CNC manufacturing ensures an accurate fit. Best of all, Borla stands behind every system with a Million-Mile warranty. This Cat-Back exhaust fits Toyota 4Runner 2010 4.0 liter with automatic transmission or manual transmission which has 2 or 4 wheel drive. The Cat Back Exhaust system features single oval rolled angle cut and rear exit. The oval tip measures up to 2.5 inch x 4.25 inch x 3.5 inch oval x 7 inch.