By appointment only — schedule your buildShipping calculated at checkoutHome of the World’s Fastest N/A Gen-3 S550 MustangSunoco race fuel at the counter — Sealy, TX
Calibration & dyno

Holley EFI
tuning services.

Your Holley EFI tuning specialists — Dominator, Terminator X and Terminator X Max tuned in-house on our Mustang dyno.

Holley DominatorTerminator XTerminator X MaxShoemaker Performance calibrations
What does it cost?

$650 – $1,000,
depending on the car.

The cost to tune your Holley EFI-equipped vehicle varies greatly depending on the vehicle, engine and modifications involved, but a rough estimate would be $650–$1,000.

What is included with my tune?

Whenever we do any sort of tuning to a vehicle we always do a baseline dyno pull before we get started and then another dyno pull once the project is finished. This allows us — and you — to see the results of the work and the investment.

Which Holley systems do you tune?

In-house: Holley Dominator, Holley Terminator X, Holley Terminator X Max. Late-model Ford and GM calibrations on our performance packages are handled by Bumbera’s and Shoemaker Performance.

Do you tune superchargers and turbo kits?

Yes — every supercharger and turbo package we sell is installed and tuned here. Speed-density conversions and M5/nitro fuel tunes are on the Stage 4 and 5 sheets.

Where is the dyno?

In the main shop at 6513 SE I-10 Frontage Road, Sealy, TX — by appointment only. Call (281) 493-9300.

Dyno cell
Mustang dyno · in-house

Every pass logged, every table earned.

Baseline pull, tune, final pull. You leave with the sheet.

Get a quote

Book a dyno tune.

Tell us the vehicle, the EFI system and what’s on it. We’ll quote the tune and get you on the calendar.

Photos are always helpful — email them to info@bumberas.com. Fields marked * are required.