Custom Tuning for Most Vehicle Manufacturers.
For Ford, GM, Dodge, Jeep, & Chrysler Vehicles.
Nearly every make and model.
Most Major Software Manufacturers Supported Here!
SCT, Bully Dog,
DiabloSport, Superchips Dashpaq,
HP Tuners & More Tuning Platforms all supported here.
We Are The Undisputed Leaders in
F150 Ecoboost 2.7 & 3.5 Performance
No Compromising Performance &..
Unmatched Industry Best Power, MPG's, and Drivability.
Our NO LAG Turbo Tuning Delivers
No matter the application .....We Have You Covered
Go With The Experienced People
Cars, Trucks, & SUV's
All GM Tuning Supported Here
has just been Redefined!
With our No LAG Turbo Tuning
Know That WE HAVE YOU COVERED!
Towing Your Boat
Second To None Ford Ecoboost Tuning
To The Work Site, or The Race Track
We Make your Explorer or Explorer Sport...
RUN like a Performance Sedan
With Smooth Linear on Demand Power
....No Matter where You Go!
Don't Trust Just Anyone With Your Investment
When it comes to Dodge & Chrysler Tuning
Whether its your Dodge Ram, Challenger, R/T, SRT, Scat Pack, Drag Pack or HELLCAT
SSi Performance Delivers Everytime
Go with Proven Experience
Formerly Known As Southern Speed Inc. Ford, GM, & Chrysler Custom Tuning. #1 in ECOBOOST TUNING. Your Best Choice for all your CUSTOM TUNING needs.
In observance with this special holiday weekend and appreciation for all that made the ultimate sacrifice our annual Memorial Day Sale starts today. Get 15% off Custom Tunes and selected Programmers with Custom Tuning. SCT X4, BDX, and LiveWire are all included. At checkout use coupon code- Memorial Day We would also like to add that we appreciate all of our service men and women who are curr…
SSi Performance Thanksgiving and Black Friday sales starts today. 10% off Custom Tunes only and Programmers with Custom Tunes. This is for standard Ford, GM, and Chrysler X4s, and BDX programmers with custom tunes. You can double up savings of over $100 with our sale and the coupon from SCT and Bully Dog too. At checkout use coupon code – BF Have a Happy and Safe Thanksgiving ev…