Sports Series 4.5" High Flow Catted Downpipe for the INEOS Grenadier B58 (6 Cylinder) Engine

SPORTS SERIES 4.5" HIGH-FLOW CATTED DOWNPIPE INEOS Grenadier • B58 6-Cylinder Turbo Built in the USA. Engineered for Maximum Flow. Unlock the B58 with a 4.5" high-flow catted downpipe designed specifically for the INEOS Grenadier. The larger 4.5" inlet matches the B58 turbo outlet for a smooth, unrestricted transition—reducing turbulence and backpressure while improving turbo spool, throttle response, and power potential. WHY SPORTS SERIES? 4.5" → 4" mandrel-bent piping for optimized exhaust flow 200-cell metallic high-flow catalytic converter 100% 304 stainless steel 100% TIG welded in-house CNC-machined billet V-band flange Smooth transitions designed to minimize turbulence Integrated stainless flex section for long-term durability Fits factory or aftermarket exhaust systems Track-tested durability Includes all installation hardware Limited Lifetime Warranty Brushed finish standard • Polished finish available PERFORMANCE The factory catalytic converter creates significant exhaust restriction. Our 200-cell metallic core provides substantially more flow while maintaining a high-flow catalytic converter design. The result: Faster Turbo Spool • Better Throttle Response • Reduced Backpressure • Increased Power Potential OPTIONAL UPGRADES 🔥 Ceramic Thermal Coating Up to 2000°F heat resistance. Helps retain exhaust heat, reduce underhood temperatures, improve exhaust velocity, and add corrosion protection. 📡 Additional O₂ Sensor Bung Pre-installed and plugged for easy future wideband installation. 🌡️ EGT Sensor Bung Pre-installed 1/8" NPT bung for an EGT sensor and gauge. BUILT FOR THE B58 The B58's 4.5" turbo outlet deserves a downpipe designed around it. Rather than creating a restrictive step-down at the turbo, the Sports Series uses a precision-machined 4.5" flange and smooth transition to maximize exhaust flow where it matters most. Performance. No Compromise. Made in the USA • 304 Stainless • TIG Welded • B58 Specific OFF-ROAD / COMPETITION USE ONLY Not legal for use on pollution-controlled vehicles operated on public roads or highways. Not available for sale, installation, or use on licensed vehicles in California. Vehicle-use verification and a compliance waiver may be required.