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Tidewater Customs LLC
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Professional flash tuning services because you built it for the demands of off-road but we can help

Shifting Improvements

Correct gear hunting for automatics, reduce rev hang for manuals.

Do you suffer from constant up and down shifts during certain conditions on the trail? Sometimes double downshifting and racing the rpms putting unneeded stress on your trucks engine and transmission? Do you lack the ability to have the expected acceleration in any given gear?


For automatics, the adjusted calibrations offer the TCU (transmission control unit) table settings which significantly improve the shift behavior.  These proper adjustments allow critical refinements proven to:

  • Hold gear properly and only shift when the load requires. No more unpredictable "shift-dance"
  • Enhanced support for your overland or custom build that is regeared (4.88/5.29). 
  • Adjusted shift parameters for non-stock tire size

3rd generation Toyota Tacoma capable TRD Off-Road

Proper throttle

Correct laggy non-responsive throttle

I remember feeling my truck ignore my slight push to the accelerator....entirely.  Push down further and nothing, further still then off we go!  It's just not working as expected like any other vehicle I have ever driven. How to MT owners even get close to shifting with this when on my automatic it's so unoptimized?  


Table smoothing and refinements on the throttle requests make all the difference in the world for these trucks for:

  • Responsive pedal
  • Various options at the time of tune for heavier (overland) trucks or those with gear/tires/rims well beyond stock setup
  • A linear throttle curve that improved overall drivability and acceleration feel at all speeds

3rd generation Toyota Tacoma TRD Pro with overland setup

Low end response

Access the power these trucks are hiding

Both the 6 and 4 cylinders can deliver power much better then the factory settings. If you don't feel your truck pulling through the powerband you much have a stock Tacoma!


While others might tout max gains on a dyno we all know these are not intended to be race trucks...if you want one of those we support FI options to! For the rest of us there is improvements that directly provide power in low end these trucks do not have otherwise. Instead of gains above 5000 RPM consider improvements where they matter in your daily commute or weekend warrior trail ride needs to access:

  • Low end response 
  • A feeling of the truck being 'lighter' as the powerband is optimized
  • A direct response of being able to hold the right gear at the right time based on the current conditions

3rd generation Toyota Tacoma

While the above comments are specific to the 2016-2023 Tacomas we have found many optimizations of other vehicles to fall into similar conditions, just not as severe.  A 2005 2nd Gen Tacoma and a 2024 4Runner gain many of these improvements also!


Thank you to the owners who's trucks are featured on this page!

Copyright © 2025 Tidewater Customs, LLC - All Rights Reserved.
Tidewater Customs LLC is not authorized by or affiliated with Toyota. 

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