C63 S AMG Modifications and Accessories

The Mods section is broken into sections Internal, External, Engine Tuning and Exhaust Modifications.

AMG and Genuine Accessories:



Internal Accessories:

  • AMG Door Pins $60 - There are many guys that are actually making these door pins from what I can tell JBSPEED is selling the best quality door pins for the best price.


  • AZN Optics LED Internal Lighting Replacements $66.50 - w205 with lighting specs, only the Glove box, trunk light, vanity mirror, and footwell ambient lights can be replaced and those all use our 194 wedge LEDs which retail $19/set.

    In total you're looking at 3.5 sets which equals $66.50.
    These 194 V5 units are high end canbus units utilizing the latest in COB based SMDs with integrated constant current IC drives.

  • The only additional bulbs available for those without lighting package would be the addition of another set of the 194 wedge bulbs for reverse lights, 7507 bayonet bulbs for the rear signals (Amber or Red), and H7 HID conversion we recommend high end Morimoto XB Elite kits (5000K pure white:  and 6000K white with a slight bluish hue).

External Accessories:

JBSPeed trunk Spoilers


  • Mud Flaps, Front and Rear $211 (painted and shipped) -  If you're tired of mud and anything else on your car here you go. More info located Here

brabus body kiT

They released the kit to turn the exterior of your c63 into a Brabus-650.   Front diffuser, Carbon grill surrounds, rear diffuser, wing, and other accessories such as emblems. 

*note you must purchase their exhaust for the rear diffuser to fit.

Carbon Fiber Parts:


rw carbon




  • Carbon Fiber Dash $1350 ($1700-$350 core charge) - Sometimes the pictures don't do the product justice and this is one of those cases. This dash is for users who don't have the analog clock in the dash and don't want to go through the added expense to get the clock integrated via the OEM CF Dash. 
  • To order email johnb@macarbon.com and tell him we sent you.

Carbon Fiber Start Button  $195

A genuine MB start button covered with your choice of red, orange, black , or silver carbon fiber.  Installs in seconds and gives and extra pop of color.  



  • Bootlid Spoiler $595 - There is no better way to make a statement than with our signature style Bootlid Spoiler for the W205 C63(S) Sedan. With a Mode Carbon product, you get that signature aggressive styling that is sure to be imitated by the masses. Our goal from the onset of designing this piece was to add some much needed aggression to the otherwise rounded trunk line of the W205. The lines of our Bootlid Spoiler aim to flatten out the top curve of the trunk when viewing straight on from the rear, while adding a robust muscular side profile to match this car’s serious performance characteristics. 


  • Edition 1 Front Splitter $1295 - Incorporating styling cues from Affalterbach, our Edition 1 Front Splitter turns your C63(S) into an untamed DTM-inspired beast without sacrificing daily drivability. Our 3 piece design protrudes outward from the front bumper, as opposed to sitting underneath it, thus preserving your ground clearance and allowing for a better approach angle. Street presence is off the charts with this one, adding a sinister front personality to match the racket coming from the spooling twin turbos. The left lane is all yours, and they will move out of your way.
  • Side Skirts $1495 - Our Side Skirt replacements for the C63(S) are an elegant complimentary carbon fiber modification that is the missing link that ties together all of the carbon fibr on the front fascia and the rear end of your vehicle. This subtle yet vibrant addition is a classy touch that will remind you just how special your AMG is every time you enter and exit the vehicle.
  • Mirror Housing $1200 - Our carbon fibre Mirror Housings are another subtle touch to the side profile of your C63(S), adding character whilst blending in with the Side-Skirt Replacements impeccably. If you have equipped your vehicle with our Euro-Spec Front Lip Kit and Euro-Spec Rear Diffuser, the full housings are a must in order to keep the carbon fibre theme of the vehicle consistent throughout, replacing all the gloss black and plastic trim with something far more high end. They say perfection lies in the details, and we have to agree.
  • Euro-Spec Rear Diffuser $1095 - Our bespoke full carbon fibre Euro-Spec Rear Diffuser replaces the dull, unimpressive factory plastic rear diffuser for a rear end you can be proud of. The styling of the upper portion is drastically improved by eliminating the fake mesh pattern on the factory diffuser for a sleek and clean look.

    Even though this product utilizes a full carbon fibre construction, all OEM features are left in-tact thanks to our implementation of cutting edge technologies. The rear mounting brackets around the parking sensors are 3D printed onto each and every Mode Carbon rear diffuser, ensuring a perfect replica of the OEM mounting tabs that would otherwise not be possible by traditional molding techniques. This allows for a flawless OEM fitment without blocking your parking sensors and other electronics in the rear of the vehicle that require a radio signal to be transmitted. We also include a carbon fibre tow hook cover to keep tow hook access fully in-tact should the need arise.

  • Euro-Spec Front Trim Replacement $1295 - The Euro-Spec Front Trim Replacement includes three pieces, replacing both the lower carbon fiber lip trim and the upper canard trim of the front fascia. Not only does this add a dark, menacing tone to the nose of your W205 C63, but the pop of carbon fiber weave gleaming in the light will be sure to turn heads. The front fascia gets the flare it deserves without compromising the class and sophistication that a vehicle of this caliber possesses.

PSM Dynamic

They have a website under development but there are a few people in CA with their carbon body accent kit.  The offer a Trunk spoiler, Rear diffuser, Side skirts, and a front lip.   When more info becomes available we will update

Engine Tuning:

Piggy Back Systems

Vivid Racing $1,500.00 - New from VR Tuned is this performance Tuning Box kit for the Mercedes AMG C63 series 4.0L Turbo engines. This tuning box kit is a plug and play solution to tune your cars fuel, timing, and boost giving you up to 40% more power and 20% fuel savings. The VR Tuned ECU Tuning Box Kit gives your C63 4.0L Turbo engine a gain in power from 503bhp to 595bhp gaining you almost 90hp


Rebellion Automotive 750 GBP(about $1000 ) - Rebellions piggyback is a plug and play system that installs in a few hours and can be removed and undetectable.  Per a dyno run they posted

Stock - 539bhp 524ftlbs
Tuned - 603bhp 640ftlbs

Have also had a otherwise stock car run 11.6 and w/ toyo R888 run 11.1 

We have a unit coming in soon and will be doing some stock and tuned dyno runs as well.


ECU Flash

C63s OE Tuning
  • OE Tuning $1,595.00 - The latest super sedan from Mercedes Benz is the C63S AMG. Boasting 503 Horsepower and 516 lb.ft of Torque straight out of the box, the C63S AMG is powered by a 4.0L V8 Bi-Turbo “M177″ power-plant, that rivals its 6.2L predecessor. The “63AMG” badge states one thing…….. Unrivaled straight line performance and luxury synonymous with Mercedes Benz and AMG.
  • OE Tuning Stage 1 ECU Tune on the dyno, gains of +87wHp and +122wTq were seen to the wheels.

RENNtech  $3,495.00 

  • RENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicles entire power band. By modifying ignition timing and throttle mapping, optimizing air-to-fuel ratios, increasing the engine's rev limiter and modifying boost mapping for turbo-charged vehicles

    With the proprietary RENNtech ECU Tuning the W205 - C 63 AMG gains up to +56 HP and +107 LB-FT, based on power numbers measured by RENNtech. Please note that the Mercedes M177 engine performance when measured, obtains higher numbers than rated from factory. The maximum power number reached with the RENNtech ECU Upgrade fot the W205 - C 63 AMG is 601 HP and 657 LB-FT.

  • Weistec $2,950.00 - Eliminated Top Speed Limiter, Improved Throttle Response, Optimized Fuel, Spark, and Boost
  • +68 Wheel Horse Power +80 Wheel Torque Peak Gains with Air Filters
  • +97 Wheel Horse Power +114 Wheel Torque Peak Gains with Air Filters and Downpipes  



    Eurocharged $2,499.99


    • Engineered with Strict Industry Standards
    • Extensively Tested Under Various Driving Conditions
    • Factory Safety Limiters Retained
    • Greatest Power and Torque Gains in the Industry, Guaranteed!
    • Optimized Responsiveness and Drivability
    • Optimized Smoothness and Driving Comfort
    • Power Delivery Perfectly Optimized Throughout the Power Band
    • Improved Fuel Efficiency
    • Speed Governor Removed
    • Lower End Hesitation (Lag) Removed
    • Claimed 150HP and 150TRQ

    Turbo/cooling upgrades:

    • Weistec W.3 Turbo Upgrade $12,499
    • The Weistec M177 W.3 Turbo Upgrade unlocks the true potential of the 4.0L Biturbo engine.  Power gains are substantial, especially in the top end.

    • The factory turbocharges are disassembled and fully inspected.  The compressor cover and center cartridge are then machined to accept our 5-axis CNC machined 65mm impeller wheel. The new impeller wheel supports greater power levels than the factory unit with little to no sacrifice in spool and response.  The turbochargers are then reassembled with new seals and fully balanced for smooth operation and OEM service life.  All the original oil and coolant lines bolt right up making for a simple install.

    Eurocharged M177 M178 Turbo Upgrade

     $9,999.99 (must send your stock turbos back)


    • Modified Exhaust Manifolds (Increased flow and heat protection)
    • 5 axis CNC Machined
    • All Hardware and Gaskets Included for easy install
    • 100% Bolt on Installation
    • High Speed / High RPM Precision Balanced
    • 700+WHP packages available (depending on supporting mods)
    • Eurocharged Performance Engine Software Included

    Eurocharged Stage 1 cooling Upgrade. $999.99

    Once you get bigger turbos you need to keep them cool. A larger cooler is a must to keep the IATs low.  


    Dime Racing Intercooler.  ($ upon request)

    We have effectively tripled the cooling capacity by means of a high density heat exchanger that is double the thickness of that from the factory. We have also separated or divorced the intercooler circuit from the transmission cooling circuit. Intake air temperatures are no longer affected by transmission temperatures, and you feel consistent results weather on the street or track.



    • 722.9 MCT Bulletproof V2 Transmission, RWD $5489.99
    • Optional New Ball Bearing Transmission Pump $599
    • Weistec Engineering 722.9 Bulletproof V2 Transmission is the go-to upgrade for the 7 speed transmissions used in AMG models. Every transmission is carefully disassembled and inspected to insure there is no fatigue to the casing or other vital components. Once accepted, the internal hard parts undergo a few machine processes to allow for better temperature distribution and increased clutch capacity.  We then cryogenically harden all gears, clutch pack housings, input shaft, and output shaft.
    • 722.9 Transmission Pan $599
    • The Transmission Pan provides improvement to the performance of the 7 speed 722.9 transmission in a few ways.  Primarily is the increased fluid capacity.  With more fluid in the system, temperatures will rise more slowly as it takes more energy to heat the greater volume of fluid.  Second is the integrated cooling fins on the inside and outside of the Weistec 722.9 Transmission Pan which work to help cool the pan and the fluid inside it as the vehicle is driving down the road.  The pan also features two -8 ports that allow for installation of an additional transmission fluid cooler for those that are seeking maximum cooling for their transmission.
    • 722.9 Bulletproof Build Package, Early MCT $3,599.99
    • The Weistec Engineering 722.9 Bulletproof Build Package is a complete set of parts needed for building the 7 speed 722.9 transmission.  The most important part of the package is the Weistec 722.9 Clutch Packs which are also used in our Bulletproof Transmission builds.  All clutches feature the new and improved Weistec Performance Clutch Material which was developed over two years of rigorous street and track testing with high power Weistec vehicles.  The new clutch material has a much higher coefficient of friction as well as better resistance to heat compared to the previous clutch material. Also included is a complete OEM gasket, seal, and hardware set.


    KW Suspension

    • KW Coilover suspensions Variant 3 $3548.99

    • The KW Coilover suspensions Variant 3 made of stainless steel gives the new C63 AMG and C63 S AMG (W205) sedan the ideal balance of everyday practicality, driving dynamics and individual setting options in comfort and sportiness.

    • The C63 AMG can be lowered within the tested adjustment range from 0 to 30 mm

    • As of right now there is no site that you can purchase the springs from, however, if you want to purchase them you can send these guys an email and they will get your order processed.

    • Be sure to let them know we sent you



    • Adjustable Suspension $1,749.99
    • Weistec Adjustable Suspension System for the W205 C63 and C63-S converts the front to adjustable coilovers and adds an adjustable perch for the rear. The system features CNC machined billet aluminum construction, anodized and laser engraved with part numbers and directions to simplify installation and adjustment.  The adjustable perches feature ball spring set screws that allow you to "count the clicks" while adjusting ride height, making it easier to match side to side ride height adjustments.



    Weistec High Flow Air Filter Set $199.99 - hese Weistec filters are designed specifically for the vehicles equipped with the M177 BiTurbo 4.0L engine. The filters, while having better flow than the factory paper filters, are a thinner design which effectively increases the volume of the lower airbox, further improving response and flow of the M177 intakes which in turn helps the vehicle reach greater levels of performance 


    Blow off Valves


    Turbokits BOV spacer:  reg 238.00 - this kit comes with 2 solid billet aluminum spacers, hardware, and install tools.  installs in just minutes and gives your car the turbo "woosh" when you let off the gas.  available in both alum and black finish. We have a review here.


    Weistec VTA Adapter System $249.99 - the Weistec M177 VTA (Vent to Atmosphere) Adapters are designed and manufactured as a complete and simple bolt on solution for attaining the "blow-off" sound that many people are fond of on turbocharged vehicles with out being excessively loud or high pitched.  The M177 engine comes equipped with twin electronically actuated bypass valves molded into the intercoolers that recirculate back into the airboxes for near silent operation.  With the M177 VTA Adapters, there will be no check engine light as the factory valves are still used, and no tuning or ECU calibration is required.


    Exhaust Systems:



    Available Now

    • GTS (Ultimate Racing) $3,998

      • Down Pipe (Primary Cat-delete) $1,998

      • Down Pipe (Secondary Cat-delete) $1,498

    • GTC (EV Controlled) $4498
      • Down Pipe (Primary Cat-delete) $1,998
      • Down Pipe (Secondary Cat-delete) $1,498
      • GTC Wireless Remote Control $150
    • SwitchPath Exhaust System - for non-Dynamic Performance Exhaust cars $2,795.00
    • SwitchPath Exhaust System - for Dynamic Performance Exhaust cars $2,295.00
    • Track Edition Exhaust System $1,295.00


    • Pro Race Muffler $2704.16


    • DownPipes $2,799.99
    • The downpipes are engineered and designed with the most sophisticated Computer Aided Design tools, excellent fitment and the highest performance possible are guaranteed. Each Downpipe features 3 inch diameter piping and laser cut precision flanges to mate with factory mounting points, giving this system a perfect fit. Our M177 Downpipes use OEM coupling to mate perfectly to the turbos and factory cat back exhaust.
    • Downpipes come standard with internal Ceramic coating to keep heat within the piping, helping improve exhaust velocity while also reducing engine bay temperatures.
    • For maximum results, the combination of the exhaust with the Weistec M177 ECU Upgrade is recommended

    Additional Performance Mods:

    • RENNtech Toe Link Kit for AMG Models $940 - Adding a RENNtech toe link kit maintains stability at high speed, ensures the vehicle tracks straight under heavy acceleration as well as properly positions the car's suspension under heavy cornering and braking loads.
    • Performance Air Filter $229 - BMC air filters are designed and produced to ensure a higher air flow than original paper filters. In F1, for example, BMC cotton filters minimize the loss of air flow pressure passing through the air filter; this way ensures the best conditions for full exploitation of maximum power. Therefore the benefits of replacing the original paper filter with BMC cotton air filter, produced using the same technology and materials as the F1 air filters, are evident.

    Additional 3rd Party Accessories:

    radar detectors

    • Valentine 1 $399 - This radar detector has been on the market for years and is viewed as one of the best radar detectors on the market under $500

    Escort Passport Max 360 $649 - Another great radar detector we suggest calling in however as we have been able to score $50 off when chatting with someone for a few minutes

    Laser jammers

    • AL Priority $749-$1599 - This jammer is upgradable and provides the best protection according to numerous sources. They are marketed as parking sensors

    Dash cameras


    Blackvue DR650GW 2 Channel - Great Camera with great software for the computer however the mobile app has issues. We have an installation guide available, Blackvue How to Guide, and a review will be up shortly.