BMW M3 E93 M3 Parts

The E93 is the convertible variant of BMW's fourth-generation M3, sharing its platform and drivetrain with the E90 sedan and E92 coupe. Built from 2008 through 2013, it represents the last naturally aspirated M3 before BMW turbocharged everything - and that alone makes it something worth talking about. Under the hood sits the S65B40, a 4.0-liter V8 that spins to 8,300 RPM and produces 414 horsepower in stock form. It's an engine derived directly from the M5's S85, and it sounds absolutely savage when you're pushing it toward redline with the top down. If you've never heard an S65 scream past 7,000 RPM on an open road, you're missing something.

The E93 does carry a weight penalty over the E92 coupe - the folding hardtop adds roughly 200 pounds - so if pure lap times are your only metric, the coupe wins. But the E93 has its own character. It's the M3 you drive on a Sunday morning through canyon roads with the roof stowed, and it still has the bones of a legitimate track machine. The chassis code puts it firmly in the E9X M3 family, and anything that works on the E92 works here. The community around these cars is deep, the parts support is excellent, and values have been climbing steadily as buyers recognize what the S65 era actually meant.

Let's be straight with each other: the S65 is one of BMW's greatest engines, but it has known issues you need to respect. The rod bearing situation is the big one. The S65 - like the S85 before it - is hard on main and rod bearings, especially if the car has been driven hard without oil changes on schedule. If you're buying a used E93 M3 or already own one, a rod bearing replacement with upgraded King XP bearings is not optional maintenance, it's insurance. Do it, document it, move on. Most experienced E9X owners do this somewhere between 60,000 and 80,000 miles, or immediately on a fresh purchase if history is unknown.

The throttle actuators are another S65 quirk. The engine runs individual throttle bodies for each cylinder, which is part of what makes it so responsive, but those actuators do fail. Symptoms include rough idle, limp mode, and fault codes pointing to throttle positioning errors. Rebuilt or OEM replacements are the move here - aftermarket units have mixed reviews. The VANOS solenoids also wear over time and are worth inspecting if you're chasing idle quality or low-end response. Browse our engine components section for OEM-spec and upgraded options on both.

On the cooling side, the stock setup handles street driving fine, but if you're tracking the car, you'll want to address it early. An oil cooler upgrade is highly recommended for track use - the S65 runs hot under sustained load, and heat soak accelerates bearing wear. Mishimoto and CSF both make well-regarded solutions for the E9X platform. Pair that with a fluid film coolant flush and fresh thermostat if the car has miles on it. See our full cooling systems catalog to get sorted before your first track day.

The S65 is naturally aspirated, which means the mod path looks different than what the N54 crowd is used to. You're not chasing boost pressure - you're optimizing airflow, reducing weight, improving chassis dynamics, and extracting every last RPM the engine is willing to give. For a daily driver build, start with an exhaust upgrade. An aftermarket cat-back or headers-back from Eisenmann, Akrapovic, or Active Autowerke will wake the S65 up in ways that are hard to describe until you've heard it. Add a high-flow air intake and a tune from Evolve or Active Autowerke, and you're looking at a more responsive, more exciting car without compromising street manners.

For a weekend warrior or canyon build, suspension is where you get the most return. The E93's added weight makes good dampers matter even more than on the coupe. Bilstein B8s with H&R sport springs are a trusted starting point that the community keeps coming back to. KW Variant 3 coilovers are the step up if you want serious adjustability without going full race. Throw in a front strut brace, upgraded sway bar end links, and poly subframe bushings, and the E93 stops feeling like a heavy drop-top and starts feeling like the M car it is. Our suspension and handling section carries everything you need for the E9X platform.

A full track build on the E93 is a commitment, but the platform rewards it. Big brake kits from Stoptech or AP Racing, dedicated track rubber on a second wheel set, and a proper oil cooling setup will get you consistent laps without drama. Add cage considerations if you're running anything beyond HPDE. The E93 will never be the lightest car in the paddock, but with the right setup it's one of the most satisfying - because that S65 still pulls to 8,300 RPM whether you're at the farmer's market or on the back straight at Road Atlanta.