Compare 36 Function Factory Performance vs 12 RTR Vehicles parts for the 2024-2026 S650 Mustang. Side-by-side specs, pricing, and product selection.
Choosing between Function Factory Performance and RTR Vehicles for your 2024-2026 S650 Mustang comes down to priorities: product selection breadth, price range, and the specific modification categories each brand covers. Both manufacturers produce quality aftermarket parts engineered for the S650 Mustang platform, but they approach the market differently.
Function Factory Performance offers 36 products for the S650 Mustang, priced from $59.98 to $1,169.98 (average price: $268.37). Their catalog focuses on Exterior, Accessories, Rear Wings, Rear Diffusers. Every Function Factory Performance product listed here has been verified for direct fitment on the 2024-2026 S650 Mustang platform.
RTR Vehicles brings 12 products to the table, with pricing from $8.98 to $560.00 (average price: $204.13). RTR Vehicles concentrates on Accessories, Exterior, Wheels.
Below you will find a direct side-by-side comparison table, full product listings from each brand, and a recommendation based on real pricing and catalog data. Whether you are building a show car, a daily driver, or a weekend track weapon, this comparison gives you the data to make the right call for your S650 Mustang.
Key metrics for S650 Mustang parts from each brand.
| Metric | Function Factory Performance | RTR Vehicles |
|---|---|---|
| Product Count | 36 | 12 |
| Price Range | $59.98 – $1,169.98 | $8.98 – $560.00 |
| Average Price | $268.37 | $204.13 |
| In Stock | 34 of 36 | 10 of 12 |
| On Sale | 0 products | 0 products |
| Categories | Exterior, Accessories, Rear Wings, Rear Diffusers | Accessories, Exterior, Wheels |
| Years Available | 2024-2026 | |
36 products.
12 products.
RTR Vehicles offers lower average pricing, making it the better choice for budget-conscious builds on the S650 Mustang.
Function Factory Performance has the larger catalog, giving you more options for comprehensive S650 Mustang builds.
Function Factory Performance has a higher percentage of in-stock parts, meaning faster shipping for your S650 Mustang project.
Both Function Factory Performance and RTR Vehicles manufacture quality parts for the S650 Mustang. Your decision should be based on which specific products you need and your build goals. Need help deciding? Call us at (805) 583-4000.
Function Factory Performance and RTR Vehicles both manufacture aftermarket parts for the 2024-2026 S650 Mustang, but they differ in product selection, pricing, and category focus. Function Factory Performance offers 36 products while RTR Vehicles offers 12 products for this platform. Compare their full lineups on this page to find the right fit for your build.
Yes. Every Function Factory Performance and RTR Vehicles product listed on this page has been verified for direct fitment on the 2024-2026 S650 Mustang. FF Performance only lists parts with confirmed compatibility for each vehicle platform.
Pricing across both brands ranges from $8.98 to $1,169.98 for S650 Mustang parts. See the comparison table above for average pricing and price ranges from each brand. Both brands offer parts at various price points depending on the product category.
Shipping is calculated per-product at checkout based on each item's size and brand. Some products from Function Factory Performance and RTR Vehicles ship free; others are charged. Final shipping cost is shown in the cart.
Absolutely. Many S650 Mustang builds combine parts from multiple brands to achieve the desired result. For example, you might choose Function Factory Performance for one category and RTR Vehicles for another. Our team at (805) 583-4000 can help you plan a build using the best parts from each brand.
Send it over and a real crew member who works on these daily will get back to you — with answers, fitment notes, install tips, whatever you need.