Steeda’s Vortech S550 Goes 11.2 on Street Tires in Road Race Trim

September 15, 2015 9:19 pm

The team at Steeda was curious how our Vortech supercharged S550 pushing 671 rwhp would do at South Georgia Motorsports Park (SGMP) down the 1320 – while on street tires and still outfitted with our road racing suspension setup (sway bars on full stiffness). After being flogged by Evan Smith, former editor of Muscle Mustangs and Fast Fords, we took our S550 to the strip to see what she could do.


Even in 80% humidity this past weekend at SGMP, our Triple Yellow 2015 Mustang GT didn’t disappoint. We ran an 11.25 @ 126.78 mph on 20″ Nitto street tires, and there’s definitely a lot more we can get out of the car with a bit of fine-tuning; this is a daily drivable 671 rwhp monster that’s capable of high 10’s all while on the stock fuel pump and full luxuries of the interior.

Stay tuned for updates as we aim for the 10’s with our 2015 GT!

Steeda Supercharged S550 at SGMP

Our #Steeda Vortech-supercharged S550 ran 11.25 @ 126.78 mph this past weekend at South Georgia Motor Sports Park on 20" Nitto Tire street tires, fully-equipped with our suspension components of course!S550 upgrades:

Posted by Steeda Autosports on Monday, September 14, 2015

Check out all of our 2015-2016 Mustang parts right on our site.

Build List:
Steeda S550 Front Splitter – Street (2015 GT w/ PP chin) 283-S550-GT-PP
Steeda S550 Functional Race Wing (2015 All) 476-STEEDA-WING-15
Steeda S550 Mustang Hood Strut Kit (2015 All) 555-0687
Steeda Mustang Front Sway Bar (2015) 555-1015
Steeda Mustang Rear Sway Bar (2015) 555-1016
Steeda MT-82 Transmission Mount Bushing Insert (2011-2015) 555-4037
Steeda Adjustable Rear Toe Links (2015 All) 555-4120
Steeda S550 Mustang Steeda Billet Aluminum Vertical Links (2015) 555-4121
Steeda S550 Mustang IRS Subframe Bushing Support System (2015 All) 555-4437
Steeda S550 Mustang IRS Subframe Alignment Kit (2015) 555-4438
Steeda S550 Mustang Adjustable Differential Bushing Insert System – Urethane (2015 All) 555-4439
Steeda Mustang Extreme G-Trac Brace (2015) 555-5532
Steeda Mustang Strut Tower Brace (2015 GT/EcoBoost) 555-5731
Steeda S550 Mustang Rear IRS Subframe Braces (2015 Coupe) 555-5754
Steeda 15″ Mustang Slotted Front Brake Rotors (2015) 555-6024
Steeda 13″ Mustang Slotted Rear Brake Rotors (2015) 555-6025
Steeda Mustang Heavy Duty Braided Clutch Line (2015 All) 555-7016
Steeda S550 Mustang Shifter Base Bushing Bracket Kit (2015) 555-7092
Steeda S550 Mustang Tri-Ax Short Throw Shifter (2015 All) 555-7316
Steeda Mustang Bumpsteer Kit (2015 All) 555-8133
Steeda S550 Billet Rear Sway Bar Mounts (2015) 555-8147
Steeda S550 Billet Front Sway Bar Mounts (2015) 555-8148
Steeda Mustang Sport Springs – Progressive (2015 GT/V6 Coupe) 555-8210
20×9.5 Steeda ST-R Wheel Black (2005-2015) 004-209501
20×11 Steeda ST-R Wheel Black (2005-2015) 004-211501

Vortech S550 Mustang Complete V-3 Si System – Black Finish (2015 GT)
Injector Dynamics ID1000’s

Steeda – Speed Matters