Your engine tune is only half the car. A transmission still running factory torque limits and lazy shift points will hold back every horsepower you paid for — and cook itself trying.
A TCU tune is not a personality setting. It's the control strategy that decides when your transmission shifts, how hard, and how much torque it will let through.
Gears held where the engine actually makes power instead of upshifting into nothing at part throttle.
Crisper, quicker changes — less clutch slip, less heat, and a car that feels like it means it.
Factory limits are set for a stock engine. Raised to match what your engine now makes, so the trans stops pulling timing to protect itself.
Raised where it needs to be to hold the extra torque, without hammering the driveline everywhere else.
Lockup strategy adjusted so the car isn't slipping the converter — and generating heat — when it should be locked.
Every TCU tune is driven and adjusted. Numbers on a laptop mean nothing until the car behaves.
Flat pricing, written estimate first.
Full calibration and road verification.
Both in one visit — the way most modern automatics should be done.
If it turns out to be mechanical rather than software, we quote the repair before touching the calibration.
If your transmission has a mechanical fault, a tune will not hide it and we won't pretend otherwise. We'll show you what we found and quote the fix.
We see the same car every week: a tuned truck or sedan making great numbers on the dyno that falls on its face on the road. Almost always it's the TCU protecting itself — pulling torque, flaring between gears, refusing to lock the converter.
Fixing that is cheaper than the horsepower you already bought, and it's the change owners feel the most.
Shift points, shift firmness and speed, line pressure, torque converter lockup and the torque limits the transmission control unit imposes. On a modern automatic, those limits are often what's holding your car back — the engine makes the power and the trans refuses to pass it.
$695. If you're already having the engine tuned, doing both in the same visit is $1,590 and saves you a second drop-off.
On most modern automatics, yes — and it's the difference between a car that makes a big number and a car that's actually fast. An engine tune alone often results in a transmission that slips, flares between gears or pulls timing to protect itself.
Common ones we see weekly: ZF 8HP (BMW, Dodge, Jeep, Ram), Ford 10R80 and 6R80, GM 6L80/6L90 and 8L90, and various Audi/VW units. Tell us the year, make and model and we'll confirm before you book.
Done right, a firmer, faster shift usually reduces heat and clutch slip, which is what actually kills automatics. Done wrong — dumping line pressure everywhere — it beats the driveline. We tune for the way you actually drive the car, and we'll say so if what you're asking for will cost you a transmission.
Sometimes. A lot of "my transmission feels wrong" calls turn out to be a fluid, adaptation or mechanical issue rather than software. We diagnose first and tell you which one you have.
We reply the same business day. Prefer to talk? Call 256-975-0012 — you'll get the shop, not a call center.
