Mercedes C63 AMG Performance Parts & Tuning Mods

Top Brands For Mercedes C63 AMG

Your Mercedes C63 AMG is brilliantly supported in the aftermarket, with a wide choice of leading brands covering everything from exhausts and intakes to suspension, wheels and styling upgrades. Explore top names in performance parts and tuning mods below to build your perfect C63 setup.

Mercedes C63 AMG Exterior Styling Upgrades

The Mercedes C63 AMG already turns heads, but a few well chosen styling mods can make it properly stand out. From aggressive body kits, front splitters and rear diffusers to spoilers, custom grilles and subtle trim upgrades, you can sharpen the look and give your C63 a unique, motorsport-inspired edge.

Suspension & Handling Upgrades For The Mercedes C63 AMG

The Mercedes C63 AMG is a serious bit of kit, but from the factory it can feel a touch nose-heavy with some understeer on turn-in and traction struggles on bumpy roads. Starting with quality tyres and performance brake pads gives the biggest confidence boost, sharpening grip and shortening stopping distances without ruining daily comfort. A more aggressive road or track-focused pad and fresh fluid will keep braking consistent on spirited drives and track days, while a big brake kit is ideal if you are running sticky tyres and power upgrades. Next, look at suspension tuning. Lowering springs or well-matched coilovers reduce body roll and improve agility, making the car feel more planted in quick direction changes. Upgraded dampers, stiffer anti-roll bars and fresh polyurethane bushes tighten up the chassis, improving stability and steering response. Add a front strut brace and rear subframe inserts and the C63 AMG feels more precise and playful in corners, with more predictable balance at the limit.

Frequently Asked Questions

What are the best first performance mods for a Mercedes C63 AMG?

For most C63 AMG owners, the ideal first upgrades are a quality cat back exhaust, high flow panel filter or intake kit, and an ECU remap. Together these tuning mods free up the V8 or twin turbo V8, sharpen throttle response, and give you a stronger mid range without needing to open the engine.

After that, look at suspension upgrades such as lowering springs or coilovers, plus performance tyres. Getting the chassis and grip sorted lets you use the extra horsepower and torque more confidently on the road or track.

How much power can I gain from a remap on my C63 AMG?

On naturally aspirated 6.2 C63 models, an ECU remap combined with a good intake and exhaust usually delivers modest but noticeable gains in torque and a sharper, more responsive feel. You will not see turbo car numbers, but the overall drivability and power delivery improve.

On the 4.0 twin turbo C63, a stage 1 remap with supporting hardware in good condition can give a healthy bump in power and torque. Exact figures depend on fuel quality, condition of the turbos, and what other performance parts are fitted, but it is enough of an increase that you will feel it clearly from low down through to the redline.

Will tuning and mods affect reliability on my Mercedes C63 AMG?

Light tuning, such as a sensible remap, intake, cat back exhaust and upgraded intercoolers on turbo models, is generally reliable if the car is well maintained. Sticking to realistic power goals and using quality performance parts is the key to keeping reliability in check.

Where reliability starts to suffer is when you chase very high horsepower on stock cooling, stock gearbox software, or tired ignition and fueling components. We always recommend a full health check, fresh service items, and upgraded cooling and braking to match any serious power upgrades.

What supporting mods do I need for a stage 2 C63 AMG build?

For a typical stage 2 setup on a C63 AMG, you will usually be looking at high flow downpipes, a less restrictive exhaust, an uprated intake system, and a custom ECU remap. On turbocharged models, uprated intercoolers or charge coolers are strongly advised to keep intake temperatures under control.

Beyond that, it is smart to upgrade spark plugs, consider stronger brake pads and braided lines, and make sure the gearbox is serviced and, where possible, running updated TCU software. This combination keeps the car dependable while you enjoy the extra performance.

What wheel and tyre sizes work best on a tuned C63 AMG?

The C63 AMG responds well to wider performance tyres, especially at the rear, to help put the extra torque down. Many owners stick close to OEM diameter but go slightly wider alloys and tyres for more grip, for example a 19 inch rim with a wider section width and a quality UHP tyre.

If you go more aggressive with wheel fitment, you must consider offsets to avoid rubbing on arches or suspension components. Lowered cars in particular benefit from a proper alignment to keep the handling sharp and tyre wear under control.

Is a C63 AMG still good as a daily driver after tuning?

A well tuned C63 AMG can be a great daily if you keep the mods sensible. A refined cat back exhaust, a smooth ECU calibration, and quality suspension upgrades will actually make the car feel more responsive and more planted without ruining comfort.

Going too loud on exhausts, very stiff coilovers, or extreme track focused tyres will make daily use less friendly. If you want a road biased build, it is worth planning your upgrades with day to day commuting and motorway miles in mind.

How much should I budget for basic C63 AMG performance upgrades?

For a sensible first stage of tuning on a C63 AMG, budget for an intake or panel filter, a performance exhaust, and an ECU remap. Depending on brand choices and whether you go turbo back or just cat back, most owners are into the low to mid four figure range in pounds for parts and fitting.

If you add suspension, wheel and tyre upgrades, and improved brakes, the overall package cost rises, but you also end up with a far more rounded car. It is usually better to spread the spend on power, handling and stopping, rather than throw everything at horsepower alone.

Final Thoughts On The Mercedes C63 AMG

The Mercedes C63 AMG is already a bit of a weapon straight out of the box, with that V8 character, rear wheel drive balance and a cabin that still works for day to day life. Its core strengths are torque-rich power delivery, a serious soundtrack and a chassis that responds well to proper tuning. That said, the stock car is built to suit a broad audience, so there is always performance left on the table for enthusiasts who want a sharper, more focused feel without ruining comfort. With the usual intake, exhaust and remap upgrades, the C63 AMG can see noticeable gains in throttle response and mid range punch, as long as heat management is kept in check. The factory cooling and intake path can get overwhelmed when you start pushing harder, especially on tuned or track-driven cars, so uprated intercoolers, radiators and intake kits are common sense mods. On some models the gearbox and diff mounts can feel a bit soft when power is increased, so reinforcement parts and quality fluids help protect reliability while letting you enjoy the extra power. Where the standard suspension and brakes are fine for fast road use, they can feel a touch soft and prone to fade when you really lean on the car. Coilovers, uprated shocks and springs, as well as performance pads, lines and fluid, transform confidence, while a good set of wheels and tyres unlocks more grip and sharper steering feedback. Subtle styling and aero tweaks, from splitters and diffusers to more purposeful alloys, let you dial in the stance and attitude that matches your driving style. Put together properly, a well thought out mix of power mods, chassis upgrades and tasteful styling turns the Mercedes C63 AMG into a far more rewarding and involving machine, without killing its everyday usability. Focus on quality parts, sensible tuning and preventative upgrades, and you end up with a car that feels personal, tough and properly fast in the real world. The platform is strong, the tuning potential is proven, and the rest is down to how you want your own C63 AMG build to look, feel and drive.