Dual Filter Cold Air Intake System for Mercedes-Benz C300 / C350 (2008–2012) – 3.0L & 3.5L M272 V6 Engines Maximize Your W204's Breathing Potential with German-Engineered Dual Filtration Your 2008-2012 Mercedes-Benz C-Class W204 with the M272 V6 engine represents Mercedes' refined approach to sport sedan engineering. The C300 with its 3.0-liter engine produces 228 horsepower and 221 lb-ft of torque, while the C350 delivers 268 horsepower at 6,500 RPM and 258 lb-ft of torque at 3,500 RPM . The C350 achieves 0-60 mph in approximately 6.1 seconds —respectable performance for a naturally aspirated luxury sedan. However, the M272 engine is not the best-sounding Mercedes engine, with characteristic rough idle and sputtering at speeds between 1,500-1,800 RPM due to emissions requirements . The restrictive factory air box compounds these issues by limiting airflow and muffling the V6's potential. This precision-engineered Dual Filter Cold Air Intake System transforms your C-Class by delivering unrestricted, high-volume airflow through twin high-performance red filters, unlocking sharper throttle response, improved power delivery, and a more refined induction tone. Understanding the M272 V6 Platform The M272 E35 engine was uprated in 2008 to 316 PS (232 kW) at 6,500 RPM and 265 lb-ft of torque at 4,900 RPM by raising the rev-limit to 7,200 RPM, increasing compression ratio, and modifying the valvetrain . This sophisticated 90-degree V6 features variable camshaft timing and represents Mercedes' commitment to naturally aspirated performance before the industry's shift to forced induction. However, the M272 V6 engine has a known balance shaft issue where a small gear located deep inside the engine wears prematurely, causing rough running and engine warning lights, with repairs often costing $4,000 or more . While this cold air intake won't solve mechanical issues, it does optimize the airflow side of the equation—allowing your engine to breathe properly and operate more efficiently throughout its service life. The M272 is highly tunable with a huge array of tuning options available, including larger displacement bore-outs, performance camshafts from Kleemann and Schrick, and ECU tuning . This dual filter intake system is the essential first step before exploring more aggressive modifications. Key Features Dual High-Flow Filtration: Twin red performance filters maximize cold air delivery while providing superior filtration—drawing in cooler, denser air for optimal combustion efficiency. Increased Power Output: Enhanced airflow supports up to 10% increase in horsepower and 8% increase in torque across the RPM range. Premium T6063 Aluminum Construction: Lightweight, corrosion-resistant piping ensures strength, durability, and precise OEM-quality fitment. Improved Throttle Response: Reduced intake restriction delivers more immediate power when you step on the accelerator, addressing the M272's characteristic lag. Refined Induction Sound: Deep, sporty intake tone that enhances the driving experience without being obnoxious—transforming the M272's rough character into something more purposeful. Washable & Reusable Filters: Long-term performance with reduced maintenance costs—clean and re-oil as needed instead of frequent paper filter replacements. Direct Bolt-On Installation: Complete kit includes all necessary hoses, clamps, and mounting hardware for straightforward installation with basic hand tools. No Tuning Required: Immediate performance gains without ECU modification, though this intake pairs perfectly with performance tunes. Performance Benefits for the Driving Enthusiast Enhanced Acceleration: Help your C350 achieve closer to its 6.1-second 0-60 mph potential with improved breathing. Better Mid-Range Pull: Optimized airflow in the critical 3,500-5,000 RPM range where the M272 produces peak torque. Smoother Power Delivery: Reduced restriction helps minimize the rough idle and sputtering characteristics of emissions-compliant M272 engines. Improved Fuel Efficiency Potential: More efficient combustion can help optimize your fuel economy during normal driving. Foundation for Future Builds: Essential supporting modification for ECU tuning, performance camshafts, headers, and other M272 performance upgrades . Enhanced Driving Engagement: More refined induction sound creates a more visceral connection to your Mercedes. Vehicle Fitment ✅ Compatible Models: 2008–2012 Mercedes-Benz C300: 3.0L V6 (M272 E30) - 228 HP / 221 lb-ft 2008–2011 Mercedes-Benz C350: 3.5L V6 (M272 E35) - 268 HP / 258 lb-ft Fits both automatic (7G-Tronic) and manual transmission models Compatible with RWD and 4MATIC AWD configurations Includes dual signature red high-performance filters ⚠️ Important Notes: Designed specifically for M272 V6 engines only (3.0L and 3.5L) NOT compatible with 2013+ C300/C350 models featuring the M276 engine (different intake system) NOT compatible with C63 AMG models (6.2L V8 M156 engine) NOT compatible with four-cylinder or diesel models This product is not CARB legal and is intended for off-road or track use only Product Specifications Engine Application: M272 E30 (3.0L) / M272 E35 (3.5L) V6 Platform: W204 C-Class (Pre-Facelift and Facelift) Pipe Material: T6063 Aluminum (lightweight, corrosion-resistant) Filter Type: Dual high-flow washable red performance filters Filter Maintenance: Clean and re-oil as needed (typically every 30,000-50,000 miles) Power Gains: Up to 10% increase in horsepower, 8% increase in torque Installation: Direct bolt-on—no cutting or permanent modifications Installation Time: 60-90 minutes with basic hand tools Tuning Compatibility: Works with stock ECU; pairs perfectly with performance tunes Complete Package Includes T6063 aluminum intake piping engineered for M272 V6 Dual red high-flow washable performance air filters All necessary hoses and silicone couplers Heavy-duty stainless steel clamps Complete mounting hardware for secure installation Installation Designed for straightforward DIY installation by Mercedes-Benz enthusiasts comfortable with basic mechanical work. The system utilizes factory mounting points for a secure, OEM-quality fit. Tools Required: Basic screwdrivers, socket wrenches, and pliers Professional Installation Recommended: While installation is accessible for DIY enthusiasts, professional installation is recommended to ensure all connections are properly sealed and airtight for optimal performance. Installation Resources: General installation instructions available at www.performancechiptuning.com/installation. Additional video guides can be found by searching YouTube for "W204 C-Class cold air intake install." Critical Installation Note: Disconnect your battery's NEGATIVE GROUND CABLE before beginning installation. After completing the install, leave the cable disconnected for at least 60 seconds to allow the Engine Control Unit (ECU) to reset and adapt to the increased airflow. The ECU will relearn fuel trims and MAF sensor parameters over the first 50-100 miles of driving. Always perform installation on a completely cool engine to ensure safety. Perfect For: C-Class owners seeking better throttle response and refined performance Enthusiasts planning ECU tuning or comprehensive M272 builds Daily drivers who want to improve the M272's characteristic rough idle and power delivery Mercedes owners maintaining their W204 for long-term ownership (150,000+ miles) Track day enthusiasts seeking every advantage from naturally aspirated power Anyone frustrated by the muffled, restricted character of the factory intake system Drivers who appreciate German engineering and want to optimize their investment Why Upgrade Your Factory Air Box? Unlock M272 Potential: The factory intake prioritizes emissions compliance—let your V6 breathe properly Better Power Delivery: Reduced restriction helps smooth out the M272's characteristic rough idle and sputtering Improved Acceleration Feel: More immediate throttle response makes your C-Class feel more alive and engaging Refined Sound Character: Transform the M272's rough emissions tone into something more purposeful and sporty Foundation for Tuning: Essential first step before ECU tuning, performance camshafts, headers, or larger displacement bore-outs Dual Filtration Advantage: Twin filters provide superior airflow distribution and filtration compared to single-filter systems Long-Term Value: Washable filters eliminate the need for frequent paper filter replacements The Reality of the W204 Platform The 2012 Mercedes-Benz C-Class facelift was more than just a facelift—it was a complete transformation with over 2,000 new parts . However, the M272 V6 engine's balance shaft issue remains the single biggest red flag for early W204s, with repairs often costing $4,000 or more . This is not something a cold air intake can fix, but proper maintenance and monitoring can prevent catastrophic failure. For owners committed to their W204, this dual filter intake system represents a smart investment. By 2010 and 2011, Mercedes had addressed most early mechanical problems, making later pre-facelift models safer bets . If you're maintaining your C-Class for the long haul—and the M272 is highly tunable with extensive aftermarket support —optimizing airflow is the logical first step. Complementary Performance Upgrades Build a comprehensive performance package for your M272-powered C-Class: ECU Tuning: The M272 E35 can be tuned to approximately 300 HP with proper calibration Performance Headers: OBX and other brands offer headers specifically for the W204 M272 Cat-Back Exhaust: Reduce backpressure and enhance that V6 sound Performance Camshafts: Kleemann super sport camshafts and Schrick 268° cams available for M272 V6 Lightweight Pulleys: AMS Performance offers aluminum pulleys for the M272 ⚠️ Legal Disclaimer: This product is not CARB (California Air Resources Board) legal and is intended for off-road or track use only. Installation may affect emissions compliance in certain jurisdictions. Consult local regulations before purchasing. The Bottom Line: Your 2008-2012 Mercedes-Benz C300 or C350 with the M272 V6 engine is a refined German sport sedan that deserves proper breathing. While the M272 has known mechanical concerns that require vigilant maintenance, optimizing airflow helps your engine operate more efficiently and deliver the performance Mercedes engineered into it. This Dual Filter Cold Air Intake System with signature red filters transforms your C-Class by reducing restriction, improving throttle response, and creating a more refined induction sound. Whether you stop here and simply enjoy better performance, or continue building toward 300+ horsepower with ECU tuning and supporting modifications , proper breathing starts with eliminating the restrictive factory air box. Give your W204 the airflow it needs to perform at its best.