This is a set of manifolds (headers) to fit generation 1 987 Boxster and Cayman. After the installation of this product the emission light might come on your dash. To remove it you will need two 02 sensor spacers for the downstream sensors. This is a high quality, 304 grade stainless steel catless manifold. This removes two catalytic converters if paired with factory exhaust you retain two catalytic converts down in the mufflers. Fitting this part will see a substantial power increase and a little extra noise.

(This product removes factory fitted emissions systems and is therefore may not be road legal, meaning this is strictly to be purchased for use off road)

Check out the music in the videos of Co-owner Johua's 987.1 Cayman S with TopGear catless headers and exhaust valves open!

Primary Diameter = Primary External Diameter 45mm

Collectors Diameter = Collector External Diameter 54mm

Engine Size (L) 2.7,3.2,3.4