Preserving a Legend: Tuning the Mitsubishi Lancer Evolution 4, 5 & 6 (CP9A/CN9A)
The Mitsubishi Lancer Evolution 4, 5, and 6 (codenamed CN9A and CP9A) are considered by many to be the high watermark of the Lancer Evolution series. These cars are icons of rally heritage and pure driving exhilaration. While finding a well-preserved Evo 4-6 in the UAE can be a challenge, Atomic Shop remains committed to supporting these classics. We offer a curated selection of performance parts to enhance the performance and reliability of your CT9A, focusing on engine upgrades and chassis refinement.
Fortifying the 4G63: Engine Rebuild Components
The legendary 4G63 engine is robust but benefits from strengthened components, especially when pushing for higher horsepower.
Manley Connecting Rods and Valves
A set of forged Manley H-Beam Connecting Rods is critical for any serious build. These rods are significantly stronger than stock and can handle the increased stress of higher boost levels and RPMs. Pair them with Manley Race Series Valves and Springs to ensure valvetrain stability and prevent valve float.
Cometic MLS Head Gasket
A multi-layered steel (MLS) head gasket from Cometic is essential for maintaining a reliable seal between the block and cylinder head, which is particularly important for engines running increased boost.
Sharpening the Chassis: Handling & Drivetrain
These components will sharpen the connection with the road and enhance the feel of the all-wheel-drive system.
- Cusco Strut Braces & Sway Bars: Enhance chassis rigidity and reduce body roll with a Cusco Front Strut Brace and Cusco Sway Bars. These components provide a more direct and responsive feel, improving handling and cornering grip.
- Verkline Adjustable Rear Arms: Precisely dial in your rear alignment with adjustable rear camber arms from Verkline. These arms allow you to correct camber after lowering the car or to optimize alignment for track use.
Braking Performance: The Last Line of Defense
Ensure confidence-inspiring stopping power for your vintage Evo.
- Ferodo Racing Brake Pads: For maximum stopping power, select Ferodo DS3000 or DS2500 brake pads, known for their superior performance and consistency.
- Brake Master Cylinder Stopper: A subtle yet highly effective addition to the braking system that enhances pedal feel and overall performance.
FAQ: Mitsubishi Evo 4-6 Upgrades
What should I check before modifying an older Evo 4-6?
First and foremost, check for rust and corrosion. Pay close attention to the rear arches, sills, and underbody. Also, inspect the condition of the turbocharger and cooling system, as these are common wear items on cars that are now 20+ years old.
Are coilovers necessary, or are lowering springs enough for the street?
For street use, quality lowering springs (like Eibach) paired with matched shocks can improve handling and aesthetics. However, for track use or complete control over damping, coilovers are the better choice.
Why are head studs and forged internals so important on the 4G63?
Factory internals are a limiting factor for high horsepower. Upgrading to forged connecting rods and head studs