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 Jul 17 - Jul 22

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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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4.1 ★★★★★
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Amazon Customer
Lowell, US
★★★★★ 5
Great shoes
Size: 12, Color: Black
These are great. We buy them again and again
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Reviewed in the United States on May 4, 2026
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K 8bro
Alexandria, US
★★★★★ 4
Fit over a rather large bunion!
Size: 13 Wide, Color: Mocha Grainy Leather
Very comfortable…didn’t pinch toe bed. Attractive!
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Reviewed in the United States on March 10, 2026
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racheli kuber
Phoenix, US
★★★★★ 1
very poor quality
Size: 14, Color: Black
they are a peice of garbage, within about a month since i started wearing them the outer material started pealing off within two months the upper separated from the soles so i had to go to a shoemaker to sew them back together, within some few months the insoles completely wore out rendering the shoes unwearable, now mind you that i do not abuse shoes but use them in a normal office oriented enviorment, i will for sure not be buying these shoes again
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Reviewed in the United States on May 25, 2026
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William J Becker Sr
Omaha, US
★★★★★ 5
Sleek and classy loafer
Size: 10.5, Color: Black
Was skeptical on this purchase but I have to say, well worth it. Not super expensive but very comfortable. Wears well for summer dress attire for taking your lady out for a dinner or show. Casual yet classy. Not a bad buy.
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Reviewed in the United States on March 14, 2026
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Edward A. Cleveland
Bozeman, US
★★★★★ 5
Great Step In Shoe
Size: 11, Color: Cognac
For people (like me) that have physical and/or medical issues that makes it difficult to bend over to put shoes on, or even to just tie shoes, these shoes make that process so much easier! I have been wearing similar "step in" shoes from another manufacturer (Kizix) that has stopped making leather shoes that are more stylish and business like, similar to this. I haven't tried to polish them yet, but I assume that they will shine up just fine - and they look good now, with a great finish. The sole of the shoe is a solid rubber and I don't slip when I am wearing these, and I am quite impressed by their quality. I look forward to getting another style soon.
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Reviewed in the United States on June 4, 2025

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