When it comes to elite twin-turbocharged V8s, the S63 engine sits at the top of BMW’s performance hierarchy. Found in the F10 M5, F90 M5, X5M, X6M, and more, the S63 is a powerhouse straight from the factory. But if you’re ready to unlock true street-dominating potential, Rvng RaceWorks has the performance upgrades and know-how to make your S63 unleash all it’s capable of. This guide dives deep into proven upgrades and tuning strategies to transform your S63 into a high-horsepower monster.
Understanding the S63 Platform
The S63 is a 4.4L twin-turbocharged V8 built by BMW’s M division, known for its aggressive power delivery and tuning flexibility. With features like direct injection, Valvetronic, and high-precision twin-scroll turbos, the S63 is a tuner’s dream. But factory limitations in components like intake, exhaust, and cooling systems mean there’s plenty of room to elevate performance with the right modifications.
Intake Upgrades – More Air, More Power
Improving airflow is essential to getting the most out of your S63. A high-performance intake system helps reduce air restriction and increase throttle response. At Rvng RaceWorks, we offer intake systems that are specifically designed to handle the airflow demands of the S63 under high boost. Upgraded filters and heat-shielded tubing keep intake temps down and allow the turbos to spool quicker. A quality intake system is one of the simplest ways to wake up your S63 and start building toward bigger power.
Downpipes – Free the Flow
Factory downpipes on the S63 are restrictive and limit power due to emission controls. By switching to high-flow or catless downpipes from Rvng RaceWorks, you’ll drastically improve exhaust flow, reduce backpressure, and gain significant horsepower and torque. Our downpipes are constructed from premium stainless steel and TIG welded to withstand the intense heat of the S63. This single change can unlock 40–70whp when paired with a tune.
Front Mount Intakes – Cold Air at Speed
For S63 owners seeking serious gains, front mount intakes are a game-changer. These systems pull cooler, denser air from the front grille area, dramatically improving power, especially at higher speeds. The S63 benefits greatly from reduced intake air temperatures, which help maintain consistent performance in aggressive driving situations. Rvng RaceWorks front mount intake kits are engineered for seamless fitment and tested on our in-house builds for real-world gains.
Intercooler and Charge Pipe Upgrades
The S63 generates intense heat under boost, which can rob horsepower if not properly managed. Upgrading the intercoolers ensures intake temps stay cool, even during back-to-back pulls or track sessions. Pair this with our high-flow S63 charge pipes, which are designed to handle increased pressure without cracking or flexing. Our aluminum charge pipes not only hold more boost but also add a sleek, aggressive look to your engine bay.
ECU Tuning – Extracting Hidden Power
Tuning is where the S63 truly transforms. With a proper ECU tune from Rvng RaceWorks, you can expect massive gains in horsepower, torque, throttle response, and even fuel efficiency. Whether you’re running Stage 1 with basic bolt-ons or going full E85 with upgraded turbos, our custom S63 tunes are calibrated for reliability and performance. The S63 responds incredibly well to tuning, often gaining 100–150+whp with supporting mods.
Turbo Upgrades – Push the Limits
For those chasing serious numbers, turbo upgrades are the final piece of the puzzle. The S63 can support upgraded twin turbos for massive horsepower potential—think 800+whp territory. Rvng RaceWorks offers turbo kits built for durability and performance, utilizing ball bearing centers and larger compressor wheels to maximize airflow and boost response. When paired with proper fueling and tuning, your S63 becomes an absolute beast on the street and track.
Supporting Mods – Keep It Reliable
Pushing the S63 to its limits requires attention to supporting systems. Upgraded spark plugs, high-performance coils, oil catch cans, and improved PCV systems are crucial for long-term reliability. We also recommend transmission tuning and upgrades for dual-clutch models to handle the added torque. Rvng RaceWorks provides everything needed to keep your S63 running strong while delivering peak performance.
Why Choose RVNG for Your S63 Build?
At Rvng RaceWorks, we live and breathe performance. Our parts are tested, proven, and engineered to bring out the full potential of your S63. Whether you’re looking for a mild bump in power or a full-blown build, we offer components, tuning, and support tailored to the S63 platform. Our team of enthusiasts understands the goals, struggles, and satisfaction that come with modifying an S63, and we’re here to help you dominate the road.
Final Thoughts
The S63 is one of the most rewarding platforms to modify, and with the right components from Rvng RaceWorks, the performance potential is virtually limitless. From intake to turbos, our hardware is designed to maximize every aspect of your S63 build. So if you’re ready to elevate your S63 beyond stock and into supercar territory, Rvng RaceWorks is your go-to source for power, precision, and performance.
