Circuit Werks latest 2005-2008 Porsche 987.1 Cayman & Boxster Equal length mandrel bent Stainless Steel Headers aka Exhaust manifolds. Fits all U.S. Left Hand Drive Models including Base and S models, Automatic or Manual Transmissions. Gaskets & bolts included. 3 to 1 race design, the most free flow headers compared to stock. Will replace your existing OEM headers without any modifications. It’s jigged off a 987 factory headers and fits pretty much like how your stock headers will. Fully Polished Stainless Steel and super high quality T.I.G. welded together. You’ll save fractions of the weight vs. the stock header. Our headers weigh exactly 3 kg / 6.6 lbs each.