Additional Performance: Compatible with aFe Power Y-Pipe (48-46208 or 48-46207) to optimize your performance gain. Dual High-Flow Catalytic Converters: This system utilizes a 400 CPSI (cell per square inch) high flow catalytic converters for maximum flow. Construction: Constructed of mandrel-bent 3" into 2-1/2" to 2" outlet 409 stainless steel piping to reduce back pressure and improve flow. Leak-Free Seal: High quality laser cut flange and band clamps are used for a complete 360 degree sealing surface. Factory Mounting Locations: 2" diameter connection pipes mount directly to OE mounting locations. Leak-Free Seal: High quality laser cut flanges and band clamps are used for a complete 360 degree sealing surface. **This is a "Race Only" product that is to be used solely for competition. Its use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization. Any other use including recreational off-road use could be in violation of local, state or federal laws. This system is not currently CARB exempt and is not available for sale in California or for use on any vehicle registered with the California Department of Motor Vehicle.