RJWC items are stocked in the USA for quick shipping

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Get the power down to the ground with a new set of tires!!

RJWC Tuners

We always recommend that you use a Fuel Tuner (EFI-tuner) combined with any exhaust system. This is to prevent the engine to run lean which can damage your engine. To ensure correct air to fuel mixture make sure you follow the Fuel Tuner manufacturer's recommended settings.

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