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The Sierra 18-5770-1 bolts in place of your factory ignition module with minimal rewiring — usually a straight plug-and-play with OEM harnesses
Part 65410 is configured for its specific application with attention to fitment requirements
3°F to 260
Operating range covers -19
The 12-gauge construction provides long-term durability
JET Performance 289148S JET Stage 2 Computer Chips/Modules Be Cool Catch Cans The Sierra 18-5770-1 bolts inThe JET Performance 289148S JET Stage 2 Computer Chips Modules from JET Performance is a Stage 2 ECU upgrade designed for vehicles with performance modifications like aftermarket exhaust, intake systems, and headers. This performance chip builds on the Stage 1 calibration with more aggressive fuel and timing maps that take advantage of increased airflow. It's the right choice for enthusiasts who have upgraded their engine's breathing and want the ECU
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