Searching for an upgrade to the wheels and tires on your 2015-2020 Ford Mustang GT350, GT350R? You'll find exactly what you need to do here in our S550 Mustang GT305/R Wheel & Tire Fitment Guide. Browse through options available in our Flow Formed wheels like the EC-7 and SM-10, or take a look at our Forged wheels such as the VS-5RS, SM-10RS, and EC-7RS. Whether you want to improve your lap times or simply freshen up the appearance of your street car, our guide provides both wheel size and tire size recommendations, along with suspension setups, for your scenario.
This guide is specifically for the GT350/R models. If you have a GT500, please click here to view our S550 GT500 Wheel & Tire Fitment Guide.
Chassis Introduction For 2015, the Mustang underwent its first major overhaul in over ten years. Gone are the traditional old school looks and character, replaced by the most refined and modernized Mustang yet. Dubbed the S550 chassis, it is new from the ground up and shares very little with the previous generation. The most notable change was the introduction of the independent rear suspension, making it the first time a mass-produced Mustang left the factory with it.
All GT350s require 19" or larger wheels with the stock brakes.
Performance Street and Track Wheel Fitment
Wider fitments for enhanced performance
Ford Mustang S550 GT350/R
Ford Mustang S550 GT350/R
Ford Mustang S550 GT350/R
Ford Mustang S550 GT350/R
Ford Mustang S550 GT350/R
Ford Mustang S550 GT350/R
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Whether you enjoy spirited street driving or you're a weekend track warrior chasing lap times, these wheel & tire configurations are ideal for S550 GT350 looking for a more dramatic improvement in performance. They are typically paired with performance oriented summer tires or track oriented R-compounds and this category includes both staggered and square configurations to best suit each individual drivers priorities, goals and preferences for their vehicle.
We've optimized the offset of our wheels to work well with the stock fenders, however, a wide variety of tire compounds can be used and some may require negative camber to fit properly. See fitment notes under each tire configuration below to see if modifications are required. If you plan to track your car, we highly recommend dialing in negative camber regardless of whether your wheel/tire fitment requires it for fender clearance. Negative camber is vital for extracting the most performance and longevity out of your tires, and without the proper amount the outer shoulders of your tires will wear out prematurely and running tire costs will dramatically increase.
Square Configurations
Recommended for enthusiasts that want to mitigate understeer, improve turn-in, and rotate tires front & rear for extended life.
Wheels
Front Wheel Size: 19x11" ET26 Rear Wheel Size: 19x11” ET52
- Available in: SM-10, VS-5RS, EC-7RS, SM-10RS, ML-10RT
- Works with factory alignment, but we suggest a track alignment for optimal performance
- No front spacers are needed
- No rear spacers are needed
Tires
- APEX Staff Pick Front Tire Size: 305/30-19 Rear Tire Size: 305/30-19
- Performance Summer: General GMax RS (360 TW), Firestone Firehawk Indy 500 (340 TW), Falken Azenis FK510 (300 TW), Continental Extremecontact Sport (340 TW), Michelin Pilot Sport 4S (300 TW)
- Extreme Performance Summer: Falken RT660 (200 TW), Goodyear Supercar 3 (220 TW), Nankang CRS (200 TW)
- R-Compound: Nitto NT01 (100 TW), Nankang AR1 (100 TW), Goodyear Supercar 3R (100 TW), Michelin Pilot Sport Cup2 (180 TW)
Wheels
Front Wheel Size: 19x11" ET52 Rear Wheel Size: 19x11" ET52
- Available in: EC-7, SM-10, VS-5RS, EC-7RS, SM-10RS, ML-10RT
- Works with factory alignment, but we suggest a track alignment for optimal performance
- 25mm spacers, extended wheel studs, and open lug nuts are required up front for strut clearance
- No spacers are needed on the rear
- Select aftermarket coilovers with offset housings allow the use of a 20mm front spacer. The only known coilovers are JRi, JRZ, and MCS. Please contact your suspension manufacturer to determine if your coilover not listed here has offset housings if you wish to run less of a front spacer. Most do not.
Tires
- APEX Staff Pick Front Tire Size: 305/30-19 Rear Tire Size: 305/30-19
- Performance Summer: General GMax RS (360 TW), Firestone Firehawk Indy 500 (340 TW), Falken Azenis FK510 (300 TW), Continental Extremecontact Sport (340 TW), Michelin Pilot Sport 4S (300 TW)
- Extreme Performance Summer: Falken RT660 (200 TW), Goodyear Supercar 3 (220 TW), Nankang CRS (200 TW)
- R-Compound: Nitto NT01 (100 TW), Nankang AR1 (100 TW), Goodyear Supercar 3R (100 TW), Michelin Pilot Sport Cup2 (180 TW)
Wheels
Front Wheel Size: 20x11" ET26 Rear Wheel Size: 20x11” ET52
- Available in: VS-5RS
- Works with factory alignment, no spacers needed front or rear
Tires
- APEX Staff Pick Front Tire Size: 305/30-20 Rear Tire Size: 305/30-20
- Performance Summer: General GMax RS (360 TW), Firestone Firehawk Indy 500 (340 TW), Falken Azenis FK510 (300 TW), Continental Extremecontact Sport (340 TW), Michelin Pilot Sport 4S (300 TW), Bridgestone Potenza Sport (300 TW)
- Extreme Performance Summer: Goodyear Supercar 3 (220 TW), Michelin Pilot Sport Cup2 Connect (240 TW)
- R-Compound: Goodyear Supercar 3R (100 TW), Michelin Pilot Sport Cup2 (180 TW), Michelin Pilot Sport Cup2 R (140 TW)
Hardcore Track Wheel Fitment
Track focused fitments that require significant modifications
Ford Mustang S550 GT350/R- Ford Mustang S550 GT350/R
Ford Mustang S550 GT350/R
Ford Mustang S550 GT350/R
Ford Mustang S550 GT350/R
Ford Mustang S550 GT350/R
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These wheel and tire configurations are best suited for hardcore track junkies and club racers that prioritize performance above all else. With these wheels everything from extreme summer tires to full racing slicks are commonly used depending on your experience behind the wheel, class rules, etc.
Additional negative camber is strongly encouraged to maximize performance and tire longevity, and some of the more aggressive fitments will absolutely require it to prevent rubbing under suspension compression. Even with the appropriate amount of negative camber dialed in, some of the more extreme fitments can still scrub the liners under suspension compression and/or when turning the steering wheel to full lock. This is par for the course when pushing the limits of wheel and tire fitment. These fitments are not for someone who primarily will use this wheel setup on their GT350 during street use or in inclement weather.
Square Configurations
Recommended for enthusiasts that want to mitigate understeer, improve turn-in, and rotate tires front & rear for extended life.
Wheels
Front Wheel Size: 19x11" ET52 Rear Wheel Size: 19x11" ET52
- Available in: EC-7, SM-10, VS-5RS, EC-7RS, SM-10RS, VS-5RE, ML-10RT
- Works with factory alignment, but we suggest a track alignment for optimal performance
- 25mm spacers, extended wheel studs, and open lug nuts are required up front for strut clearance
- No spacers are needed on the rear
- Select coilovers with offset housings allow the use of a 20mm front spacer. The only known coilovers are JRi, JRZ, and MCS. Please contact your suspension manufacturer to determine if your coilover not listed here has offset housings if you wish to run less of a front spacer. Most do not.
Tires
- APEX Staff Pick Front Tire Size: 305/30-19 Rear Tire Size: 305/30-19
- Extreme Performance Summer: Falken RT660 (200 TW), Goodyear Supercar 3 (220 TW), Nankang CRS (200 TW)
- R-Compound: Nitto NT01 (100 TW), Nankang AR1 (100 TW), Goodyear Supercar 3R (100 TW), Michelin Pilot Sport Cup2 (180 TW)
- Semi-Slick: 295/30-19 Hoosier R7 & A7 (40 TW)
Wheels
Front Wheel Size: 19x11" ET26 Rear Wheel Size: 19x11” ET52
- Available in: SM-10, VS-5RS, EC-7RS, SM-10RS, ML-10RT
- Works with factory alignment, but we suggest a track alignment for optimal performance
- No front spacers are needed
- No rear spacers are needed
Tires
- APEX Staff Pick Front Tire Size: 305/30-19 Rear Tire Size: 305/30-19
- Extreme Performance Summer: Falken RT660 (200 TW), Goodyear Supercar 3 (220 TW), Nankang CRS (200 TW)
- R-Compound: Nitto NT01 (100 TW), Nankang AR1 (100 TW), Goodyear Supercar 3R (100 TW), Michelin Pilot Sport Cup2 (180 TW)
- Semi-Slick: 295/30-19 Hoosier R7 & A7 (40 TW)
Wheels
Front Wheel Size: 19x11.5" ET56 Rear Wheel Size: 19x11.5" ET56
- Available in: SM-10, VS-5RS
- Track alignment highly suggested, around -3* front and -1.5* rear is a good starting point
- 35mm or larger spacers are required up front, along with GT4 or GT350R spec wheel studs, and open lug nuts
- No spacers are needed on the rear
- Select aftermarket coilovers with offset housings allow the use of 31mm front spacer. The only known coilovers are JRi, JRZ, and MCS. Please contact your suspension manufacturer to determine if your coilover not listed here has offset housings if you wish to run less of a front spacer. Most do not.
Tires
- APEX Staff Pick Front Tire Size: 305/30-19 Rear Tire Size: 305/30-19
- Extreme Performance Summer: Falken RT660 (200 TW), Goodyear Supercar 3 (220 TW), Nankang CRS (200 TW)
- R-Compound: Nitto NT01 (100 TW), Nankang AR1 (100 TW), Goodyear Supercar 3R (100 TW), Michelin Pilot Sport Cup2 (180 TW)
- Semi-Slick: 295/30-19 Hoosier R7 & A7 (40 TW)
- Wider Alternative Front Tire Size: 315/30-19 Rear Tire Size: 315/30-19
- Extreme Performance Summer: Falken RT660 (200 TW), Continental Extreme Force (200 TW)
- R-Compound: Michelin Pilot Sport Cup2 (180 TW)
- Semi-Slick: Hoosier R7 (40 TW), Hoosier A7 (40 TW)
Wheels
Front Tire Size: 19x12" ET57 Rear Tire Size: 19x12" ET57
- Available in: SM-10RS
- Track alignment required. At least -3* front and -2* rear is a good starting point
- 35mm or larger spacers are required up front, along with GT4 or GT350R spec wheel studs, and open lug nuts with aftermarket coilovers that provide better clearance than factory setups are required to run a 35mm spacer The only known coilovers are JRi, JRZ, and MCS. Please contact your suspension manufacturer to determine if your coilover not listed here has offset. Most do not.
- Rear spacer may be needed depending on tire and rear shock mount variations
- 40+mm spacer required with factory style dampers
- Due to the extremely aggressive nature of this setup, it is the end-users responsibility for proper fitment. Each car is a little different and spacers will be needed to dial it in for your specific suspension setup. We can not give you exact setup guarantees over the phone.
Tires
- APEX Staff Pick Front Tire Size: 305/30-19 Rear Tire Size: 305/30-19
- Extreme Performance Summer: Falken RT660 (200 TW), Goodyear Supercar 3 (220 TW), Nankang CRS (200 TW)
- R-Compound: Nitto NT01 (100 TW), Nankang AR1 (100 TW), Goodyear Supercar 3R (100 TW), Michelin Pilot Sport Cup2 (180 TW)
- Semi-Slick: 295/30-19 Hoosier R7 & A7 (40 TW)
- Wider Alternative Front Tire Size: 315/30-19 Rear Tire Size: 315/30-19
- Extreme Performance Summer: Falken RT660 (200 TW), Continental Extreme Force (200 TW)
- R-Compound: Michelin Pilot Sport Cup2 (180 TW)
- Semi-Slick: Hoosier R7 (40 TW), Hoosier A7 (40 TW)
Staggered Configurations
Maintains stock-like handling characteristics, tires can only be rotated left to right.
Wheels
Front Wheel Size: 19x11" ET26 Rear Wheel Size: 19x11.5” ET56
- Available in: SM-10, VS-5RS
- Works with factory alignment, but we suggest a track alignment for optimal performance
- No front spacers are needed
- No rear spacers are needed
Tires
- APEX Staff Pick Front Tire Size: 305/30-19 Rear Tire Size: 325/30-19
- Extreme Performance Summer: Goodyear Supercar 3 (220 TW), Continental Extreme Force (200 TW)
- R-Compound: Nitto NT01 (100 TW), Toyo R888R (100 TW), Nankang AR1 (100 TW), Goodyear Supercar 3R (100TW)
- Semi-Slick: 295/30-19 // 315/30-19 Hoosier R7 & A7 (40 TW)
Warning!
The following wheels require aftermarket race front brakes which provide better clearance for 18" wheels. The only known kits at this time are Essex/AP Racing CP9668/372mm and the Brembo Racing Endurance 380mm kit. These will not fit with the stock front brakes. Factory rear brakes will clear and do not need to be replaced.
Wheels
Front Wheel Size: 18x11" ET52 Rear Wheel Size: 18x11" ET52
- Available in: EC-7, SM-10, VS-5RS, EC-7RS, SM-10RS, VS-5RE
- 25mm spacers, extended wheel studs, and open lug nuts are required up front for strut clearance
- No spacers are needed on the rear
- Select coilovers with offset housings allow the use of a 20mm front spacer. The only known coilovers are JRi, JRZ, and MCS. Please contact your suspension manufacturer to determine if your coilover not listed here has offset housings if you wish to run less of a front spacer. Most do not.
Tires
- APEX Staff Pick Front Tire Size: 315/30-18 Rear Tire Size: 315/30-18
- Extreme Performance Summer: Falken RT660 (200 TW), Yokohama Advan A052 (200 TW), Nankang CRS (200 TW)
- R-Compound: Nitto NT01 (100 TW), Nankang AR1 (100 TW)
- Semi-Slick/Slick: Hoosier A7 (40TW), Hoosier R7 (40TW), BF Goodrich R1S (40TW), Toyo RR (40TW), Pirelli DH (305/660-18), Michelin SM8/9 (30/65-18)
- Narrower Alternative Front Tire Size: 305/35-18 Rear Tire Size: 305/35-18
- Extreme Performance Summer: No options currently available
- R-Compound: Nitto NT01 (100 TW), Toyo R888R (100 TW)
- Semi-Slick/Slick: Toyo RR (40TW), Pirelli DH (305/680-18), Michelin SM8/9 (30/68-18)
Wheels
Front Wheel Size: 18x11" ET52 Rear Wheel Size: 18x12” ET57
- Available in: VS-5RS
- 25mm spacers, extended wheel studs, and open lug nuts are required up front for strut clearance
- Select coilovers with offset housings allow the use of a 20mm front spacer. The only known coilovers are JRi, JRZ, and MCS. Please contact your suspension manufacturer to determine if your coilover not listed here has offset housings if you wish to run less of a front spacer. Most do not.
- Aftermarket rear shock mounts with a slimmer profile than stock are suggested. Small spacer may still be needed in the rear for clearance
- This fitment is meant for racers looking to maximize rear traction with 315/30-18 tires. Wider tires may be used, but clearances become even tighter and the larger tire will likely stick out past the rear fender lip. Use at your own risk.
- Due to the extremely aggressive nature of this setup, it is the end-users responsibility for proper fitment. Each car is a little different and spacers will be needed to dial it in for your specific suspension setup. We can not give you exact setup guarantees over the phone.
Tires
- APEX Staff Pick Front Tire Size: 315/30-18 Rear Tire Size: 315/30-18
- Extreme Performance Summer: Falken RT660 (200 TW), Yokohama Advan A052 (200 TW), Nankang CRS (200 TW)
- R-Compound: Nitto NT01 (100 TW), Nankang AR1 (100 TW)
- Semi-Slick/Slick: Hoosier A7 (40TW), Hoosier R7 (40TW), BF Goodrich R1S (40TW), Toyo RR (40TW), Pirelli DH (305/660-18), Michelin SM8/9 (30/65-18)
Wheels
Front Wheel Size: 18x12" ET57 Rear Wheel Size: 18x12" ET57
- Available in: VS-5RS
- Track alignment required, around -3.0* front and -1.8* rear is a good starting point
- 35mm or larger spacers are required up front, along with GT4 or GT350R spec wheel studs, and open lug nuts
- Aftermarket rear shock mounts with a slimmer profile than stock are suggested. Small spacer may still be needed in the rear for clearance
- Coilovers with offset housings are highly suggested. The only known coilovers are JRi, JRZ, and MCS. Please contact your suspension manufacturer to determine if your coilover not listed here has offset housings if you wish to run less of a front spacer. Most do not.
- The front may slightly poke out with factory fenders, even with the above mods. This should be considered a race only fitment
- Due to the extremely aggressive nature of this setup, it is the end-users responsibility for proper fitment. Each car is a little different and spacers will be needed to dial it in for your specific suspension setup. We can not give you exact setup guarantees over the phone.
Tires
- APEX Staff Pick Front Tire Size: 315/30-18 Rear Tire Size: 315/30-18
- Extreme Performance Summer: Falken RT660 (200 TW), Yokohama Advan A052 (200 TW), Nankang CRS (200 TW)
- R-Compound: Nitto NT01 (100 TW), Nankang AR1 (100 TW)
- Semi-Slick/Slick: Hoosier A7 (40TW), Hoosier R7 (40TW), BF Goodrich R1S (40TW), Toyo RR (40TW), Pirelli DH (305/660-18), Michelin SM8/9 (30/65-18)
Additional Resources
Available Wheel Designs
Forged Designs
Flow Formed Designs
About Camber Plates
Adjustable camber plates do more than just aid in wide wheel and tire fitment. They provide increased grip and reduced tire wear by spreading the load evenly during cornering. Learn more in our blog article, The Positives of Negative Camber.
Still have questions?
Fill out our Fitment Recommendation form Call us: 925-245-0773 Email us: support@apexraceparts.com