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Important Note
Heat Soak Testing
All cross section chosen for the optimum balance of torque and power
Just a few weeks later GTP was to tune and test the CSF Manifold on a F98 X4M with a built/stroked motor and larger turbos
Fits all Porsche 981 Cayman GT4 3
Porsche 986 Boxster Supercup Exhaust System (1997-2004) Select Tip Finish::Polished Stainless Steel Important NoteAggressive track designed exhaust system providing maximum flow and power; recommended for off road and track use only. The Supercup is significantly louder than our Maxflo Exhaust, but if you're looking for a very aggressive exhaust note and you're not worried about waking up the neighbors, this is the system for you! Includes Deluxe Bolt On Dual Style Tips in your choice of finish to compliment your vehicles look and style. FEATURES: Fits all