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  • Standard order lead time for STANDALONE WIRING HARNESSES is estimated to be 10-12 weeks from date of purchase.

    Need is sooner? Give us a call to discuss expediting. Limited slots available.

    All other items typically ship within 3-5 business days unless specified otherwise.

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Tap Shift Switch Box

6L80 / 6L90 Tap Shift Switch Box

Choose your options:
Add pigtail?(required):
Product Code: tssb
Usually Ships in 3 to 5 Business Days
Don't want to switch to a custom shifter, but still want tap shift with your 6L80 / 6L90 swap project? That's OK! The 6L80 / 6L90 will operate with any aftermarket or OE shifter. Just add our switch box to allow for tap up/tap down shifting capability. The switch can be mounted any place that's convenient for you.

Using a Lokar shifter and need to adapt to their micro switches,
see Lokar Tap Shift box here.

Requires E38 ECM / T43 TCM reprogramming for proper operation with 6L80 / 6L90 setups (we do that - just give us a call!)

Add pigtail? Select "Yes" if you're not using a Speartech swap harness with the tap shift plug built into the harness.

If using this for a Twist Machines Shrifter, give us a call to order at (765) 378-4908

If you don't have a Speartech harness with the tap shift plug on it, please see here for wiring info (6L80/6L90 only).

Works with GMPP harness kits, will not work with LSA E67 ECM setups.

This product requires the use of proper programming before it will ever work. Most E38 vehicles work best with a Corvette tune or Camaro tune with tap shift enabled.
E92 setups require a 2014 Vette tune for proper functionality. No DTC codes can be pending in the background or the product will not work.