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in Automotive Tuning Performance

Providing the Absolute Best You Can Get

We Deliver EXCELLENCE!

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Nearly every make and model. Ford, GM, Chrysler, & Jeep.

Custom Tuning

Virtually EVERY Platform

SCT

Diablo Sport

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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

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No matter the application .....We Have You Covered

Go With The Experienced People

Cars, Trucks, & SUV's

All GM Tuning Supported Here

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Unequaled Ecoboost Performance in

has just been Redefined!

Drivability, Power, & Fuel Economy

Your SHO Driving Excitement...

With our No LAG Turbo Tuning

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Ford GM and Dodge Truck Performance

Know That WE HAVE YOU COVERED!

Towing Your Boat

Second To None Ford Ecoboost Tuning

To The Work Site, or The Race Track

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We Make your Explorer Sport...

RUN like a Performance Sedan

With Smooth Linear on Demand Power

....No Matter where You Go!

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Don't Trust Just Anyone With Your Investment

When it comes to Dodge & Chrysler Tuning

Whether its your R/T, SRT, Scat Back, Drag Pack or HELLCAT

SSi Performance Delivers Everytime

Go with Proven Experience

Welcome to SSi, The Performance Tuning Experts (562) 305 3532

EcoBoost Tuning / Ford, GM, Chrysler, and Jeep Custom Tuning

Formerly Known As Southern Speed Inc. Ford, GM, & Chrysler Custom Tuning. #1 in ECOBOOST TUNING. Your Best Choice for all your CUSTOM TUNING needs.


Home of  THE WORLDS FASTEST F150 Ecoboosts

Programmers Purchase   Custom Tuning Front

 

  • gm tuning

    Ford, GM, & Dodge Tuning Professionals

    Custom tuning for Challenger, Mustang, Camaro, and more

    Read More

  • ecoboost tuning

    Ecoboost Custom Tuning

    F150, Explorer Sport, SHO, Mustang, & Fusion. No Lag Turbo Power Done Right!

    Read More

  • Ford Tuning

    Ford, GM, & Dodge – TRUCKS & SUVs

    Performance tuning for F150, Ram, Silverado, Jeep and more

    Read More

First of all, you came here for a reason. You are seeking performance tuning for your car or truck and you came to the right place. Whether it be ecoboost tuning/Ford tuning or another platform, Don’t trust the newbie competition with your custom tuning needs. Put our 17 years of experience in performance tuning to work for you. There is a reason we are the leaders in performance tuning – Nobody else comes close. We don’t say that to brag, we say that because our custom tuning options are proven to be the fastest, most drivable and most reliable in the industry. The numbers and customer testimonials speak for themselves.

We are famous for Ford tuning, in particular, ecoboost tuning where we hold the record for the fastest Ford F-150. We literally have thousands of hours dedicated to learning the ins-and-outs of ecoboost tuning. This platform is very intricate, so it really takes a lot of skill and knowledge to get it perfected. Another example of ecoboost tuning we specialize in, is the Ford Taurus SHO. We have customers who have gone from high 12’s to low 12’s just by switching to our tune. When it comes to Ford tuning, we are the hands-down industry leaders.

We also offer GM tuning as well as Chrysler tuning. We are a step ahead because we eat, sleep and breathe performance tuning; it’s all we do. When you are ready to go from the kiddie pool to the Ocean, buy one of our custom tuning options and see how much power and drivability you have been leaving on the table.


Click here or on the “Our Customers” logo below for Customer Testimonials

Our customers

 Join our  Facebook Group Here

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Latest Performance News

Veterans day

Veterans Day Sale Starts Today! Save on Tuning and Programmers with Custom Tuning.

We appreciate everything our Veterans do and have done for us. Here are our annual SSi Performance Veterans Day Specials. $65 off all programmers with custom tuning. At checkout use coupon code –  vet 1 Custom Tune $90 Click Here 2 Custom Tunes $130 Click Here 3 Custom Tunes $ 160 Click Here Thank You For Your Service and Have a Happy Veterans Day Everyone!  

Hutch 11.81@112.

Hutch M 2018 4WD F150 Ecoboost 3.5 sets new personal best [email protected] Pics and Video Inside

Hutch M 2018 4WD F150 Ecoboost sets new personal best [email protected] at Atlanta Dragway. Hutch got his new personal best time of [email protected] at Atlanta Dragway. Unfortunately they closed the track early due to weather however he got that first run in before they did. He is a 4WD F150 3.5 Ecoboost Super Crew with intake, cat back, and SSi Performance 50% E85 tune. [wpdevart_youtube]0ObhPG9Na_c…


Luis Staging

Luis R Breaks his own Fastest Ecoboost F150 Record with a [email protected] run. Video and Pics inside!

Luis R broke his own Fastest Ecoboost F150 record with a [email protected] track time. Congrats goes out to Luis for this great track time. We will be making some changes in the vehicle setup and the tune in our search for the first F150 Ecoboost to run 10s. We believe this is truly possible with the right combination.  Stay Tuned! Once again ..well done Luis! [wpdevart_youtube]ssgtuZRw8vY[/wpde…


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