Hey guys,
Some of you may know of the coolant concerns on these cars, specifically the "GT1 coolant tube leak" problems where the coolant tubes eject from the engine's cast aluminum housings. A lesser known problem is in the plastic coolant elbow tubes running to the two heat exchangers. These tubes crack over time, especially in situations with high mileage cars or track use.

The Turbo and GT2/GT2RS have 3 of these tubes, all slightly different from one another, one being shared with the GT3 engine. These pipes are molded plastic and have a very thin wall where the pipe connects to the engine with an O-ring seal. The problem is that over time and mileage, the thin plastic wall will break down at the o-ring slot (its weakest and thinnest point) causing a crack to appear. Eventually the whole engine will need to be removed in order to replace a cheap plastic tube with a pinhole leak. Both of these issues have been observed on the 997 GT3 and GT3RS as well.

A razor blade showing where the tube is thin, which will crack and leaks:


After a customer spent nearly $2500 replacing this small part due to a coolant leak, costing him two track days and several weeks of downtime, we decided that a permanent solution was necessary and made these stainless steel pipes with CNC billet ends. We believe these should be used in place of the OEM part to avoid the aforementioned costs involved in replacing these leaky tubes ever again.

We recommend replacing these when the engine is removed for service or upgrades, engine builds or coolant leaks. It's also a very good idea to fix the coolant lines we've posted about (The GT1 Coolant Pipe Prevention / Fix on GT1 block (GT3, GT2, Turbo) Cars - SharkWerks Porsche Project Gallery) while the engine is out.

Stock parts vs Shark Werks parts:


More info on this product:
Shark Werks 997 Turbo and 997 GT2 Coolant Pipes for 997 Turbo, 997 GT2 / GT2RS - SharkWerks Porsche Performance Experts in Northern California Bay Area (510-651-0300)