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6L80/6L90/8L90 Floor Mounted Tap Shift Shifter
6L80/6L90/8L90 Floor Mounted Tap Shift Shifter
Our Price: $400.00

Take full control of your 6L80/6L90 or 8L90's up shifts and down shifts with our in-house modified tap shift shifter! Includes the cable and brackets.

Available in black or tan. Requires E38/T43 reprogramming for proper operation when using with a 6L80 or 6L90 transmission. Not compatible with E67 setups!

Requires our 8L90 Tap Shift CAN Relay for TapShift to work on Gen 5 swaps using the 8L90 transmission.

Add pigtail? Select "Yes" if you're not using a Speartech powertrain harness. If you are using a Speartech harness, select "No"
Pigtail is not necessary when using this shifter with an 8L90 transmission. Our 8L90 Tap Shift CAN Relay includes everything needed.

If you don't have a Speartech harness with the TapShift plug on it (6L80/6L90 only), please see here for wiring info. The shifter cable length is approximately 57 inches.
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8L90 / 10L90 Tap Shift & Reverse Light CAN Relay Kit
8L90 / 10L90 Tap Shift & Reverse Light CAN Relay Kit
Our Price: $300.00

We have finally developed a solution to enable the tap shift and reverse light function when using an 8L90E or 10L90E in your swap project!

This CAN relay kit provides a +12V reverse light signal to your vehicle's back up lights. Works with 8L90E / 10L90E transmissions.

This CAN relay kit also provides Tap Shift support! Requires the use of our Tap Shift Switch Box or 8L90 Floor Mount Tap Shifter to take advantage of this function. If using a 10L90E transmission in your swap project, use our Tap Shift Switch Box as the floor shifter is NOT currently compatible with the 10L90E!

Tap Shift is enabled when you shift into manual mode (M), which is one gear below drive (D). To exit manual mode, simply shift back up into drive and the transmission will resort back to regular automatic shifting conditions.

Disclaimer: You must be running the E92 ECM with a Corvette OS to gain full functionality of the Tap Shift. Tap Shift will still function in DRIVE mode with non Corvette based tunes, but will time out after approximately 8 seconds of inactivity, and resume back to automatic gear changes.


Easy to wire in, every wire labeled, and comes with an instruction sheet.
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8L90 Reverse Light CAN Relay Kit
8L90 Reverse Light CAN Relay Kit
Our Price: $250.00

We have finally developed a solution to enable the reverse light function when using an 8L90E in your swap project!

This CAN relay kit provides a +12V reverse light signal to your vehicle's back up lights. Works with 8L90E transmissions. No programming required.

Easy to wire in, every wire labeled, and comes with an instruction sheet.
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6L80 / 6L90 Reverse Light CAN Relay Kit
6L80 / 6L90 Reverse Light CAN Relay Kit
Our Price: $250.00

We have finally developed a solution to enable the reverse light function when using a 6L80E or 6L90E in your swap project!

This CAN relay kit provides a +12V reverse light signal to your vehicle's back up lights. Works with 6L80E and 6L90E transmissions. No programming required.

Easy to wire in, every wire labeled, and comes with an instruction sheet.
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Neutral Safety Switch Module for 6L80 / 6L90 / 8L90
Neutral Safety Switch Module for 6L80 / 6L90 / 8L90
Our Price: $175.00

Finally, a reliable neutral safety switch (NSS) module for 6L80 / 6L90 / 8L90 swap applications!

This neutral safety switch module allows starting of engine in park or neutral only. No crank in reverse or drive gears.

If ordered alongside a new Speartech harness build, the module is plug and play only requiring you to tie a single wire into your vehicle's ignition switch "start/crank" wire.

This will work with any LS / LT standalone swap harness - we include an easy hook up instruction sheet with the neutral safety switch, label every wire, and include quick disconnect pigtails for an easy installation.

This item is now included by default with our complete powertrain packages using the 6L80 / 6L90 or 8L90 transmission.
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6L80/6L90/8L90 Tap Shift Switch Box
6L80/6L90/8L90 Tap Shift Switch Box
Our Price: $175.00

Don't want to switch to a custom shifter, but still want tap shift with your 6L80 / 6L90 / 8L90 swap project? That's OK! The 6L80 / 6L90 / 8L90 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.

Requires E38/E92 ECM / T43 TCM reprogramming for proper operation with 6L80 / 6L90 setups (we do that - just give us a call!) and is not compatible with E67 setups!

Requires our 8L90 Tap Shift CAN Relay for tap shift to work on Gen 5 swaps using the 8L90 transmission.

Add pigtail? Select "Yes" if you're not using a Speartech swap harness with the tap shift plug built into the harness.
Pigtail is not necessary when using the tap shift switch box with an 8L90 transmission. Our 8L90 Tap Shift CAN Relay includes everything needed.

If using this for a Twist Machines Shrifter, you must select "Yes" to "For use with Twist Machines Shrifter" You do not need to select Yes to Add Pigtail!


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


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6L80 / 6L90 / 8L90 Gear Indicator
6L80 / 6L90 / 8L90 Gear Indicator
Our Price: $150.00

Now available - The new gear indicator for swap projects using the 6L80, 6L90 or 8L90 transmission! Easily plugs into your existing OBD-2 port, or available with a quick connection to a new Speartech harness. This allows you to easily see what gear you're in when you're tap shifting with our tap shift switch box, or floor mounted tap shifter!

Now confirmed working for the 8L90 too! Works in factory applications. Just plug into your OBD port. Tested and confirmed functionality on a 2017 Sierra Denali 6.2 / 8L90 factory stock truck!

Available display colors: Red, Blue, Green, or Yellow.

The indicator measures 2" tall, 1.25" wide, .5" thick.

Note - Disconnect the gear indicator when doing any read/write functions (tuning) to the ECM/TCM.

Gear indicators are covered under a 12-month warranty from the date of purchase.
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6L80/6L90/8L90/10L90 AN Transmission Cooler Manifold
6L80/6L90/8L90/10L90 AN Transmission Cooler Manifold
Our Price: $140.00

We now offer a convenient AN trans cooler manifold solution for the 6L80, 6L90, 8L90, and 10L90 transmission. Made of billet aluminum with included swivel -6 AN fittings with 3/8" barbs. Allows you to easily route your transmission cooler lines in the orientation that works for your setup.

Includes the billet manifold assembly, AN fittings, OEM seal, and OEM mounting bolt.

Free shipping within the USA.
Cooler manifolds ship via USPS Priority. If you're unable to select the free shipping option, we will adjust & refund accordingly.
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