SKU: 35465287101

Skunk2 Racing Ultra Series Camshafts Honda/Acura K20A3 & K24A1/ A3/ A4/ A8 DOHC i-VTEC Stage 2

Sale price$491.61 Regular price$546.23
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Ships within 48 hours · Estimated delivery Sep 16 - Sep 21

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Description

Skunk2 Racing Ultra Series Camshafts Honda/Acura K20A3 & K24A1/ A3/ A4/ A8 DOHC i-VTEC Stage 2Skunk2s 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,

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.

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. 

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.

Fitment:

  • 2007 - 2010 Honda Civic (Si)
  • 2002 - 2006 Acura RSX (Type-S)
  • 2004 - 2008 Acura TSX (Base)

REQUIRED - Pro Series Valve Springs (P/N 311-05-5380) Or Pro XP Valve Springs (P/N 311-05-7380) Recommended for Turbo Applications and Titanium Retainers (P/N 308-05-0410)

Camshafts Specifications

Intake - Lift: .560"/ Duration 270° @ 1mm

Exhaust - Lift: .535"/ Duration 270° @ 1mm

Intake Centerline - Variable

Exhaust Centerline - 111°

Valve Clearance (Intake / Exhaust) - .008” / .010”

RPM Range: Varies

** 3 Lobe Forged Tool Steel Core **

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 35465287101

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Bradley Carlsen
Charlottesville, US
★★★★★ 5
Clean 2016 Prius
Size: 1-Pack
Fit my 2016 Prius good. I have had it installed for 10,000 miles and seems to work good still. With a nasty truck or old oil burner around me (windows up) I can smell some fumes but not much. Fumes might be coming from other sources like Worn window seals or firewall wire passages. If I flip the switch to recirculated air, I don't smell much. Great for the price and will buy another when I need it. Filter was great for winter driving. Better protection than stock. I forgot there was dog smell in the car.
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Reviewed in the United States on February 25, 2026
A
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Amazon Customer
San Leandro, US
★★★★★ 4
Good air filter
Size: 1-Pack, Size: 1-Pack
This cabin air filter looks well made and fits perfectly. Installation is very easy, and once installed you can notice cleaner airflow inside the vehicle. For the price, it offers solid performance and is a great alternative to the OEM filter. The only reason I’m giving it 4 stars instead of 5 is that the material feels slightly thinner than the original filter, so it may need to be replaced a bit more often. That said, it still filters well and works as expected.
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Reviewed in the United States on December 23, 2025
A
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Amazon Customer
Natrona Heights, US
★★★★★ 5
Great replacement cabin air filters
Size: 2-Pack
This cabin air filter was a perfect fit for my 2019 Camry XLE. Great price, too. I just took the old one out and popped the new one in, took about 2 minutes or less. Seems to be great quality.
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Reviewed in the United States on May 1, 2026
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Amazon Customer
Whiting, US
★★★★★ 5
Great fit and quality.
Size: 1-Pack
Arrived quickly. Fit properly. Good price.
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Reviewed in the United States on May 11, 2026
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Jerry
West Palm Beach, US
★★★★★ 5
Fits Subaru forester hybrid good
Size: 2-Pack
These fit good on my forester very easy to change air flow seems very good. So I’m happy with these.
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Reviewed in the United States on May 26, 2026

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