Skunk2 Racing 305-05-7020 Ultra 2 Camshaft For Acura Honda K Series

✅ Engine Compatibility

Designed for select Honda / Acura K-Series engines, including:

• K20A / K20Z

• K24A variants

Common applications include:

• Honda Civic Si

• Acura RSX Type-S

• Acura TSX

⚠ Confirm exact cylinder head and VTEC configuration before ordering.

Skunk2’s Ultra Series Camshafts for the Honda K20A, K20A2, K20Z1, K20Z3, and K24A2 engines dramatically increase both horsepower and torque yet retain complete valvetrain stability and exceptional engine response. Ideal for heavily modified engines, Ultra Series Camshafts are manufactured from proprietary, high-quality forged tool steel cores, are CNC ground, and feature patent-pending profiles with unique lobe shapes and revolutionary lift, velocity, and acceleration characteristics.

Skunk2 Ultra 2 K Series Camshaft Ultra 2 Cam Profile Overview

Ultra 2 cams are engineered for:

• Aggressive duration and lift

• High RPM powerband

• Maximum airflow potential

Ideal for 9,000+ RPM capable builds with proper valvetrain support.

Up to 80 hp gains with Skunk2’s Ultra Series line of camshafts, our professional line of high-lift, racing camshafts for Honda’s K-series VTEC engines. Ultra Camshafts are designed to optimize mid-range and top-end horsepower and torque, with peak power moved up the RPM band. As a result, VTEC crossover is seamless, allowing for the broadest powerband possible. No other line of racing camshafts even comes close to Skunk2’s Ultra Series.

Why Choose Ultra 2?

Compared to stock or Stage 1 cams:

• Significant top-end horsepower gains

• Improved high-RPM breathing

• Stronger performance in fully built engines

• Proven in competitive track builds

Perfect for high-compression NA or big turbo K-series setups.

Skunk2’s Ultra Series Camshafts also feature Fast Ramp and AMAX profile technology, which increases overall performance and results in unmatched response from idle to redline. AMAX technology simply maximizes the area under the lift curve but without compromising reliability or valvetrain stability. Skunk2’s profiles feature more duration than competitors’ at lifts above 1mm, resulting in greater efficiency and more power. And thanks to Fast Ramp, the same technology used in Formula One racing, seat timing is reduced, which results in additional cylinder pressure and more torque but without compromising valvetrain longevity.

Required Supporting Mods

Running Ultra 2 cams without upgrades? Risky.

Recommended:

• Upgraded valve springs & retainers

• Titanium retainers

• Adjustable cam gears

• Proper ECU tuning

• Built bottom end for high RPM use

More lift means more stress. Build accordingly.

Performance upgrade to mildly modified vehicles running 3 Lobe VTEC K20 / K24 engines
Manufactured from proprietary, high-quality forged tool steel cores
Designed to optimize mid-range and top-end horsepower and torque, with peak power moved up the RPM band
Fast Ramp & AMAX Technologies

Performance Expectations

• Aggressive powerband

• Rougher idle

• Peak power gains at higher RPM

• Requires professional tuning

Daily drivable? Depends on your definition of daily.

Installation Notes

• Professional installation strongly recommended

• Degree cams properly

• Verify piston-to-valve clearance

• ECU recalibration mandatory

High lift cams demand proper setup — no shortcuts.

Skunk2 Ultra 2 K Series Camshaft Specifications

Intake – Lift: .560″/ Duration 270° 0.000″ Exhaust – Lift: .535″/ Duration 270° 0.000
Intake Centerline – Variable Exhaust Centerline – 111°
Valve Clearance Intake / Exhaust – .008” / .010”
Fitment: 2006 – 2011 Honda Civic 2.0L Si, 2002 – 2006 Acura RSX 2.0L Base/Type S and 2004 – 2008 Acura TSX 2.4L K24A2
Fit type: Vehicle Specific