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Tfi Power Box Wol X4/R-Spec X2

Original price was: $269.99.Current price is: $236.95.

In stock

SKU: 40-R57JBIG Category:

Description

Plug-and-play full controller that allows for proper tuning of your EFI vehicle. Integrated faceplate buttons provide easy adjustment. Highly recommended for any EFI unit with aftermarket exhaust.

Increases horsepower and throttle response. Installs in minutes. No computer needed to adjust EFI.
40-R57J made by Big Gun