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in Automotive Tuning Performance

Providing the Absolute Best


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

Custom Tuning

Virtually EVERY Platform


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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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


Second To None Ford Ecoboost Tuning

Towing Your Boat

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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GM Custom Tuning

Camaro, Corvette, Trucks & SUV's

No Compromising Performance..

Unmatched Industry Best Power, MPG's, and Drivability.

A Complete Custom tune

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You Will Find Any Excuse

We Turn Your Daily Driver

Into a Daily Dose of Excitement and Adrenaline Rush

Just to Get in and Ride with SSi Performance Tuning

Easy Cruiser, to Boulevard Bully, or Track Domination

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With Your Investment

When it comes to Performance Tuning

Dont Trust Just Anyone

Reliability, Power, MPG's and Excitement

Go with Proven Experience

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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.

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    Ford, GM, & Dodge Tuning Professionals

    Challenger, Mustang, Camaro,  and more..   Read More

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

  • Ecoboost Towing

    Ford, GM, & Dodge – TRUCKS & SUVs

    F150, Ram, Silverado, Jeep and more.. Read More

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

Our customers

 Join our  Facebook Group Here



Latest Performance News

Eric & Tracy Noels 2017 Fusion Sport Runs a 12.78@108.12 with SSi Performance Tune Only! Video and Slips Inside

Congrats to the Noels first time at the track with their 2017 Fusion Sport 2.7. Although the weather was a poor 3000 DA they still managed a great run with 93 octane and SSi Performance Tune Only. Should be able to knock off at least .3 to .4 with decent air and fuel.   [wpdevart_youtube]DsFfSF_P_ks[/wpdevart_youtube]

Victor 3 runs 12.36 Best

Victor G sets his new 2016 F150 Ecoboost fastest track time of 12.36@107.50 mph. Video Inside

Congrats to Victor G for his new personal best time 12.36@107.50 mph with his 2016 F150 Ecoboost 3.5.  Intake and SSi Performance tune only. That is FAST and Great 60 foot times! [wpdevart_youtube]y-ewmvN2Bdw[/wpdevart_youtube]

Dave 12.97

Congrats to Dave V for his fastest 11-14 F150 Ecoboost track time. Slips and Video inside.

A big Congrats goes out to Dave for his great run of 12.97@103.09 yesterday. After the run we realized it was the fastest 11-14 Super Crew track run ever.  Nice Job! [wpdevart_youtube]f52TS4mq04I[/wpdevart_youtube]  

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