In-Line Modules
28 products
28 products
In-Line Performance Modules & Piggyback Tuners
In-line performance modules plug into the factory wiring harness between sensors and the ECU to modify signal values, adjusting boost, fueling, and timing parameters without permanently reprogramming the factory computer. Piggyback modules are a popular tuning solution for vehicles that are difficult to flash-tune or for owners who want a removable, reversible power increase.
OneFastShop carries in-line modules including piggyback engine management modules, boost controllers, fuel management modules, throttle response controllers, and plug-and-play performance modules for popular turbocharged, diesel, and naturally aspirated platforms.
Every in-line module at OneFastShop ships brand-new with manufacturer warranty coverage. Whether you're adding a simple boost increase, fine-tuning fuel delivery on a diesel, or stacking a piggyback on top of a flash tune, OneFastShop has the module. Shop the full in-line modules collection today.
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