Equal Length Exhaust Manifold with Catalytic Converter – Porsche Boxster/Cayman

Equal length exhaust manifold with catalytic converter. 2 equal length exhaust manifold with catalytic converter. Reduced back pressure with higher flow. Made from lightweight SS304L stainless steel. Power increase of at least 15 HP and 20 nm. Improved throttle response. Improved exhaust sound without drone, resonance, or vibration. Direct fit, no remapping required, but recommended. No CEL (Check Engine Light). Heat shield to reduce radiant heat and accelerate exhaust gas velocity. Porsche part number: 98711310133. Manufacturer: Ninemeister.

• Porsche Boxster 987 MKII 2.9L 2009-12
• Porsche Boxster S 987 MKII 3.4L 2009-12
• Porsche Cayman 2.9L 987C MKII 2009-12
• Porsche Cayman S / R 3.4L 987C MKII 2009-12

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