Stainless Valved Catback Exhaust for Porsche Boxster Cayman 981

Upgrade the sound and performance of your Porsche Boxster S or Cayman S 987 / 987.1 3.4L with the STRATEC Valved T304 Stainless Catback Exhaust System, engineered to enhance exhaust flow while retaining driver‑controlled sound flexibility.

Constructed from premium SS304 stainless steel, this system reduces factory backpressure to improve throttle response and mid‑range power while delivering a sharper, more aggressive flat‑six exhaust note. The integrated valve system allows you to switch between refined cruising and full race sound on demand.

Precision engineered for direct bolt‑on installation, this STRATEC catback maintains proper factory fitment while providing a bold motorsport character.

Sound Control

Valves Closed
Smooth, refined exhaust tone suitable for daily driving with minimal cabin drone.

Valves Open
Loud, aggressive flat‑six performance sound with enhanced throttle response and pronounced high‑RPM character.

Performance Engineering

• Premium T304 stainless steel construction

• Valved muffler system (driver controlled)

• Reduced backpressure for improved throttle response

• Enhanced mid‑range and top‑end performance

• Mandrel bent performance piping

• Precision TIG welded craftsmanship

• Direct bolt‑on installation

• No cutting or permanent modifications required

Fitment

Porsche Boxster S 987 / 987.1 – 3.4L NA Flat‑Six
Porsche Cayman S 987 / 987.1 – 3.4L NA Flat‑Six
Model Years 2004–2008