We offer three stages of engine upgrades for owners of Porsche 911, Boxsters and Caymans that come equipped the 9A1 3.8L engine. They are as follows:
STAGE I - Consists of bolt-on upgrades to the engine's intake, exhaust and ECU. Estimated engine power output of 425hp and 320lb/ft.
STAGE II - Stage I plus installation of a lightweight clutch and Porsche's X51 Carrera GTS Power Kit. Estimated engine power output of 465hp and 320lb/ft.
STAGE III - Stages I & II plus a stroke increase to 4.0L, or a stroke & bore increase to 4.2L or 4.5L. Estimated engine power output of 490 - 560 hp & 320 - 380 lb/ft of torque (depending on displacement & exhaust).
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