I finally replaced that nasty exhaust T on the Cayman S. I bought 2, 2.5" ID 90 degree mandrel bends from Summit Racing (part# 670176 http://www.summitracing.com/parts/sum-670176 ). Total cost $40. These bends are tight with a 2.5" radius. Yes, tight is bad but still better than a T. I removed the passengers side muffler assembly for access and cut the muffler outlets down to about 1.5". I cut the bends to fit snugly on the muffler outlet. It just so happens cutting the long side of the elbow left just the length I needed for the tailpipes. I was even able to reuse the clamps from the original T. I also cut the factory stainless tip from the old tailpipe and attached it (sorta) to the 2 tailpipes. It looks stock from a distance. I doubt this really made a very big difference but honestly it does seem a bit crisper at high RPM. Could just be in my head though. It just looks like it flows better.
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- Jim RoalOwnerIt looks like similar tubes are also available in stainless steel. The part number for those is VPE-13040 ( http://www.summitracing.com/parts/VPE-13040 ). The bend radius is 3.5" instead of 2.5" thouogh. We did install these in a 2013 Boxster. It was tight. We had to cut the tubes so the radius was abut to the weld bead on the muffler outlet. It did fit though. The milder bend will flow better. The 981 had more space between the muffler outlets than the 987.1 did. I don't think these would work on the 987.1.Nov 29, 2014