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1.0 Bar Spring 1991 C2 / Turbo

Engine

Vehicle Information: Year: 1991; Engine (Size, Modifications): 3.3 Turbo, K&h air filter, secondary bypass tube; Total Mileage: 54,000;

Is it worth installing the 1.0 bar spring? What are the hp and torque gains? Are there any statistics on engine longevity after installation.Thanks,Rich

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