Catted Exhaust Manifold for Porsche Boxster Cayman 981 300 Cell

Upgrade performance while retaining catalytic function on your Porsche Boxster or Cayman 981 with the STRATEC 300‑Cell High‑Flow Catted Exhaust Manifold Headers, engineered for improved exhaust flow, sharper throttle response, and a refined motorsport sound.

These headers replace the restrictive factory manifolds with 300‑cell high‑flow performance catalysts, delivering a strong balance of power gains and street drivability. Expect quicker revving, improved mid‑range torque, and a deeper flat‑six exhaust character—without the harshness of catless race setups.

Precision fabricated from high‑grade stainless steel with mandrel‑bent runners and TIG‑welded construction for durability under high heat.

Performance Benefits

• 300‑cell high‑flow catalytic converters

• Reduced backpressure vs stock

• Faster throttle response

• Increased mid‑range and top‑end power

• Refined aggressive flat‑six tone

• Mandrel bent stainless runners

• Precision TIG welded construction

• Direct bolt‑on installation

Fitment

Porsche Boxster 981 – NA Flat‑Six
Porsche Cayman 981 – NA Flat‑Six
Compatible with 2.7L / 3.4L
Approx. Model Years 2013–2016