Upgrade your SR20DET engine with the TOMEI EXPREME Exhaust Manifold—engineered for enhanced performance without requiring special modifications. Designed to retain the factory turbo setup, this manifold improves torque and power, especially in higher RPM ranges, thanks to its isometric layout and optimized exhaust flow.

Key Features:

• Material: SUS304 stainless steel piping with stainless steel flanges
• Pipe Diameter: Main φ42.7mm, 4-2 type exit
• Wall Thickness: 2.0mm
• Weight: 3.3kg (vs. 5.1kg stock)
• Improved Turbine Response: Short piping layout enhances turbo efficiency
• Optimized Exhaust Flow: Internal partitioning reduces interference from SR20’s firing order
• Durability: Includes support bracket for added strength
• Compatibility: Works with genuine and bolt-on aftermarket turbines; supports EAI mechanism and blow-by separator

Package Contents:

• Exhaust manifold
• Exhaust manifold & turbo inlet gaskets
• Oil & water line eye bolt gaskets
• Inlet tube gasket
• Lock plate, stud bolts & heat bandage