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Unleash the power hiding in your factory Engine Control Unit (ECU.) NEUSPEED engineers optimize ignition timing under part throttle and full throttle load, and raise the rev-limiter and top speed governor. Horsepower is increased from approximately 11hp to 50hp at the flywheel depending on applicati... (more) Neuspeed P-Chip Performance Chips - Full Details
- You MUST send us your ECU for installation.
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| (00-02) Audi S4 2.7L Bi-Turbo* |
$349.95 | $322.83 |  | 64.02.28 |
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