Intrax Suspension Parts have earned a solid reputation among driving enthusiasts for their precision engineering and performance focus. Specializing in coilover systems, lowering springs, and dampers, Intrax offers suspension upgrades for a wide range of European and Japanese vehicles. Whether you're looking to improve cornering, lower the center of gravity, or achieve a more responsive ride, understanding the Intrax lineup is key to making an informed choice.
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What Are Intrax Suspension Parts?
Intrax is a Dutch manufacturer known for high-quality aftermarket suspension components. The company designs and produces coilover kits, separate dampers, and springs that complement each other for optimal handling. Intrax parts are used for both street driving and track applications, offering adjustability and durability.
Intrax Suspension Product Lines
Intrax offers several families of suspension parts to match different driving needs.
Intrax Street Coilovers
The Street line is the entry-level offering, designed for daily drivers who want a moderate lowering and improved handling without sacrificing comfort. These coilovers are height-adjustable and feature fixed damping settings that balance ride quality and performance. Typical lowering range is 20-50 mm.
Intrax RS (Racing Sport) Coilovers
RS coilovers are aimed at enthusiasts who participate in autocross, track days, and spirited road driving. They offer both height and separate damping adjustment (rebound and compression). The RS system uses a mono-tube design with stainless steel bodies for corrosion resistance. Damping settings can be fine-tuned to suit different track surfaces and driving styles.
Intrax RC (Racing Competition) Coilovers
The RC line is the top-tier, for serious competitors. These coilovers offer wider adjustment ranges, more sophisticated valving, and lighter materials. RC systems typically include independent bump and rebound adjustment, plus height adjustability. Many are equipped with Öhlins-derived technology and are used in professional racing series. For most street drivers, RC may be overkill, but if you're building a dedicated track car, they provide maximum performance.
Intrax Lowering Springs
For those who want a simpler upgrade, Intrax offers lowering springs that work with factory or aftermarket dampers. They provide a 25-45 mm drop and improve handling by reducing body roll. Springs are progressively wound for a comfortable ride on the street while stiffening up under hard cornering. They are a cost-effective way to enhance appearance and performance without the complexity of coilovers.
Key Features of Intrax Suspension Parts
- Stainless steel construction on many models resists corrosion, a must for road salt climates.
- Monotube gas pressure design for consistent damping and fade resistance during hard use.
- Pre-assembled top mounts with pillow ball bearings (on many kits) reduce friction and improve steering feel.
- Height adjustable spring perches allow fine-tuning of ride height independent of spring preload (on RS and RC models).
- Separate reservoir options on some RC kits for additional oil capacity and cooling.
Compatibility and Vehicle Coverage
Intrax parts are predominantly designed for European makes: BMW (3 Series, M3, 5 Series, X5), Audi (A4, S4, A6), Volkswagen (Golf, Jetta, Passat), Mercedes-Benz (C-Class, E-Class), and Porsche (911, Boxster). They also cover select Japanese models like Subaru WRX/STI and Mazda MX-5. Always verify fitment with your specific model year and chassis code, as some kits vary by generation.
Benefits of Upgrading to Intrax
- Improved handling: Reduced body roll, better turn-in response, and increased cornering grip.
- Adjustable ride height: Lower your car for aesthetics or raise it for clearance when needed.
- Customizable damping: On RS and RC models, you can dial in comfort or stiffness.
- Durability: Robust construction and high-quality materials extend service life.
- Brand heritage: Intrax has decades of experience in motorsport suspension, translating technology to street-legal products.
Installation Considerations
Installing Intrax coilovers or springs requires mechanical skill and proper tools. It's recommended to have a professional alignment after installation, as lowering changes suspension geometry. For coilovers, follow the manufacturer's suggested preload and damping settings as a starting point, then adjust based on your driving. Expect a firmer ride compared to stock, even on the Street line. Some kits require removal of factory components like the strut mount or spring perch—plan accordingly.
Intrax vs. Competitors
Compared to brands like KW, Bilstein, or BC Racing, Intrax often strikes a balance between street comfort and track readiness. KW offers a wider range of adjustability, while BC Racing is more budget-friendly. Intrax parts tend to have a higher build quality than budget options but may be simpler than high-end KW Clubsport systems. For the driving enthusiast who wants proven performance without extreme complexity, Intrax is a strong choice.
Final Recommendations
- For daily driving with occasional spirited runs, Intrax Street coilovers are a solid choice. They offer a noticeable improvement without harshness.
- For weekend track use and frequent autocross, Intrax RS coilovers provide the adjustability needed to fine-tune cornering balance.
- For competitive racing, Intrax RC delivers top-tier performance, but consider your budget and installation expertise.
- If you already have good dampers and want a simpler upgrade, Intrax lowering springs paired with quality shocks can transform your car's feel.
Before buying, check your vehicle's exact model and year, desired drop, and typical road surfaces. Intrax suspension parts are an investment in handling and driving enjoyment, and with proper setup, they'll deliver many miles of responsive performance.