For the 5.7L Vortec V8 (or the 5.0L), the goal is often better throttle response and efficiency rather than peak horsepower. Start with basic tune-up items: new plugs, wires, cap, and rotor from the auto parts b2b website. Then, improve airflow with a high-flow air filter or a cold-air intake system designed for the TBI (if early ’95) or Vortec setup. At the exhaust, replacing the restrictive stock manifolds and Y-pipe with a set of shorty headers and a true dual or improved single exhaust system reduces backpressure, frees up torque, and enhances the V8 sound. For the 4L60-E automatic transmission, a critical reliability upgrade is adding an auxiliary transmission cooler, which significantly extends fluid and component life, especially when towing or using 4WD. Ensuring the transfer case and differentials have fresh, high-quality synthetic gear oil is also essential for long-term drivetrain health.
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