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10L90 Tap Shifter
10L90 Tap Shifter
Starting Price: $800.00
Call to order (765) 378-4908

Now available is the 10L90 floor mount tap shifter! Similar in basic function to our popular 6L80 floor mount tap shifter, this new unit controls tap shifting in a separate gate instead of a switch on the knob. Slide the shifter over to the left from drive and you're in the tap shift gate. Just nudge the shifter forward to upshift, and nudge back to downshift. Slide the shifter over to the right, and normal automatic gear changes will resume.

This shifter comes with the shifter cable, the cable bracket which mounts to the transmission, the shifter cable to gear selector lever, (2) bolts for the cable securing tabs, wiring pigtail, and the shifter knob with boot. Our 10L90 tap shift relay module is required for use of tap shift functions and is included.

Will not work with GMPP 10L harness/controllers.
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PCS SFT-5000 8L90 Tap Shift Shifter
PCS SFT-5000 8L90 Tap Shift Shifter
Starting Price: $775.00
Call (765) 378-4908 to order.

PCS SFT-5000 tap shifter for use with 8L90 swaps. Includes our 8L90 reverse light & tap shift CAN relay module.

Please see here for additional details and instructions.
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8L90 Floor Mounted Tap Shift Shifter
8L90 Floor Mounted Tap Shift Shifter
Starting Price: $775.00
Call (765) 378-4908 to order.

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

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

The shifter cable length is approximately 57 inches.

Will not work with GMPP computers! Please see our GMPP specific 8L90 shifter
here.

Due to the ECM calibration needed for this shifter to control tap shift functions correctly, please give us a call to order and discuss your setup (765) 378-4908
more info
PCS SFT-5000 GMPP 8L90 Tap Shift Shifter
PCS SFT-5000 GMPP 8L90 Tap Shift Shifter
Starting Price: $475.00
Call (765) 378-4908 to order.

PCS SFT-5000 tap shift shifter for use with GMPP 8L90 setups. Includes pigtail.

Please see here for additional details and instructions.
more info
GMPP 8L90 Floor Mounted Tap Shift Shifter
GMPP 8L90 Floor Mounted Tap Shift Shifter
Starting Price: $475.00
Call (765) 378-4908 to order.

Our floor mounted tap shift shifter for use with GMPP harness kits. Shifter cable length is approximately 57 inches.  Includes pigtail. more info
PCS SFT-5000 6L80 / 6L90 Tap Shift Shifter
PCS SFT-5000 6L80 / 6L90 Tap Shift Shifter
Starting Price: $450.00
Call (765) 378-4908 to order.

PCS SFT-5000 tap shifter for use with 6L80 / 6L90 swaps.

Please see
here for additional details and instructions.
more info
6L80 / 6L90 Floor Mounted Tap Shift Shifter
6L80 / 6L90 Floor Mounted Tap Shift Shifter
Starting Price: $450.00
Call (765) 378-4908 to order.

Take full control of your 6L80/6L90 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.

Add pigtail? Select "Yes" if you're not using a Speartech powertrain harness. If you are using a Speartech harness, select "No"

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.

Looking for a shifter for your 8L90 transmission?
Check out ours here!

This shifter is unlike others you will find online, trying to duplicate our setup. Only our in-house developed assembly offers the correct brackets for proper cable alignment during swap use, and when coupled with our in-house TCM programming, you are left with a properly functioning package ready to work for you!
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8 Speed 8L90 Tap Shift Switch Kit
8 Speed 8L90 Tap Shift Switch Kit
Starting Price: $360.00
Out of stock.

Don't want to switch to a custom shifter, but still want tap shift with your 8L90 swap project? That's OK! This tap shift / reverse light kit will operate with any aftermarket or OE shifter. Just add this switch kit to allow for tap up/tap down shifting capability. The switch can be mounted any place that's convenient for you.

8L90 Tap Shift Kit for swapped vehicles using the GM 8 Speed 8L90 transmission paired to a Gen 5 LT/Vortec engine and want the option of having Tap Shift function using a momentary toggle switch.

This kit includes the momentary toggle switch for up and down shifts, 8L90 tap shift CAN relay with reverse light function, and instruction sheet.

Tap Shift will only operate with a Corvette calibration in the ECM / TCM.

Please contact us at (765) 378-4908 before ordering if you have a different calibration for potential solutions.
more info
8L90 Tap Shift & Reverse Light CAN Relay Kit
8L90 Tap Shift & Reverse Light CAN Relay Kit
Starting Price: $325.00
Call (765) 378-4908 to order

We have finally developed a solution to enable the tap shift and 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.

This CAN relay kit also provides Tap Shift support! Requires the use of our 8L Floor Mount Tap Shifter or 10L Floor Mount Tap Shifter to take advantage of this function.

If you are just looking for a tap up / tap down switch for the 8L90, see
here.

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.

Will not work with GMPP computers!

Comes with an instruction sheet for easy installation.
more info
8L90 Reverse Light CAN Relay Kit
8L90 Reverse Light CAN Relay Kit
Starting Price: $275.00
Call to order 765-378-4908

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.

Comes with an instruction sheet for easy installation. Works with GMPP kits, too.
more info
6L80 / 6L90 Reverse Light CAN Relay Kit
6L80 / 6L90 Reverse Light CAN Relay Kit
Starting Price: $275.00
Call to order 765-378-4908

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.

Comes with an instruction sheet for easy installation.
more info
GMPP 8L90 / 10L90 Tap Shift Switch Box
GMPP 8L90 / 10L90 Tap Shift Switch Box
Starting Price: $225.00
Call (765) 378-4908 to order.

Our tap shift switch box for use with GMPP kits for tap shift control of the GM 8 and10 speed automatic transmissions. more info
Neutral Safety Switch Module for 6L80 / 6L90 / 8L90
Neutral Safety Switch Module for 6L80 / 6L90 / 8L90
Starting Price: $225.00

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 just about 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 not compatible with GMPP Connect & Cruise packages.
more info
6L80 / 6L90 Tap Shift Switch Box
6L80 / 6L90 Tap Shift Switch Box
Starting Price: $200.00

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.

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.


more info
6L80 / 6L90 / 8L90 Gear Indicator (Round)
6L80 / 6L90 / 8L90 Gear Indicator (Round)
Starting Price: $170.00

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!

Available display colors: Red

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.
more info
6L80 / 6L90 / 8L90 Gear Indicator
6L80 / 6L90 / 8L90 Gear Indicator
Starting Price: $170.00

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.
more info
   
 
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