First order? Use FIRSTORDER for 5% off.
×

Questions? E-mail us:

sales@allianceracing.com

0 My Cart: $0.00

Your cart is currently empty.

Continue shopping
Toggle menu
Alliance Racing
0
  • Home
  • Skunk2 Racing
  • Skunk2 Pro Series 06-10 Honda Civic Si (K20Z3) Intake Manifold (Race Only) - 307-05-0320
-5%
Skunk2 Pro Series 06-10 Honda Civic Si (K20Z3) Intake Manifold (Race Only) - 307-05-0320
Skunk2 Pro Series 06-10 Honda Civic Si (K20Z3) Intake Manifold (Race Only) - 307-05-0320
Skunk2 Pro Series 06-10 Honda Civic Si (K20Z3) Intake Manifold (Race Only) - 307-05-0320
Skunk2 Pro Series 06-10 Honda Civic Si (K20Z3) Intake Manifold (Race Only) - 307-05-0320
Skunk2 Pro Series 06-10 Honda Civic Si (K20Z3) Intake Manifold (Race Only) - 307-05-0320
Skunk2 Pro Series 06-10 Honda Civic Si (K20Z3) Intake Manifold (Race Only) - 307-05-0320
Skunk2 Pro Series 06-10 Honda Civic Si (K20Z3) Intake Manifold (Race Only) - 307-05-0320
Skunk2 Pro Series 06-10 Honda Civic Si (K20Z3) Intake Manifold (Race Only) - 307-05-0320
Skunk2 Pro Series 06-10 Honda Civic Si (K20Z3) Intake Manifold (Race Only) - 307-05-0320
Click to zoom in
Load image into Gallery viewer, Skunk2 Pro Series 06-10 Honda Civic Si (K20Z3) Intake Manifold (Race Only) - 307-05-0320
Load image into Gallery viewer, Skunk2 Pro Series 06-10 Honda Civic Si (K20Z3) Intake Manifold (Race Only) - 307-05-0320
Load image into Gallery viewer, Skunk2 Pro Series 06-10 Honda Civic Si (K20Z3) Intake Manifold (Race Only) - 307-05-0320
Load image into Gallery viewer, Skunk2 Pro Series 06-10 Honda Civic Si (K20Z3) Intake Manifold (Race Only) - 307-05-0320
Load image into Gallery viewer, Skunk2 Pro Series 06-10 Honda Civic Si (K20Z3) Intake Manifold (Race Only) - 307-05-0320
Load image into Gallery viewer, Skunk2 Pro Series 06-10 Honda Civic Si (K20Z3) Intake Manifold (Race Only) - 307-05-0320
Load image into Gallery viewer, Skunk2 Pro Series 06-10 Honda Civic Si (K20Z3) Intake Manifold (Race Only) - 307-05-0320
Load image into Gallery viewer, Skunk2 Pro Series 06-10 Honda Civic Si (K20Z3) Intake Manifold (Race Only) - 307-05-0320
Load image into Gallery viewer, Skunk2 Pro Series 06-10 Honda Civic Si (K20Z3) Intake Manifold (Race Only) - 307-05-0320
Buyer Confidence

Shop With Confidence

Clear availability, helpful support, and customer-first policies before you check out.

  • Competitive Pricing

    We will beat most prices!

  • Questions?

    Contact us at sales@allianceracing.com

  • Free Shipping

    Free shipping on orders over $300!

Skunk2 Pro Series 06-10 Honda Civic Si (K20Z3) Intake Manifold (Race Only) - 307-05-0320

Engine Components Intake Manifolds
Skunk2 Racing
skk307-05-0320
Backordered
August 16, 2026
Not CARB compliant. Not legal for sale or use in California on emissions-controlled vehicles.
$496.42 $522.55
Skunk2s engineers went back to the drawing board when they set out to improve the already popular 06-11 Civic Si's RBC intake manifold. Each of Skunk2's Pro Series Intake Manifolds for Honda's K-series engines feature larger plenums and shorter, oversized runners when compared to the RBC, and are cast with thicker wall material, leaving room for further porting for high-horsepower applications. Instead of producing a manifold with a significantly oversized plenum and excessively short runners that would sacrifice mid-range power, Pro Series manifolds were designed for the 'street enthusiast' who wants more power but doesn't want to sacrifice mid-range performance to get it. The results are improved airflow, an enhanced venturi effect, and both mid-range and top-end power gains. Skunk2's all-new, cast-aluminum Pro Series Intake Manifolds for Honda's K-series engines are a direct-fit replacement for all 06-11 Civic Si engines thanks to their unique design and throttle body flanges, which are compatible with OEM throttle bodies as well as those as large as 76mm. A thermal-insulated intake manifold gasket is also included, making for a truly bolt-on installation (no drilling or modifying required). Pro Series manifolds also incorporate an angled-runner design, which allows for ample hood clearance on almost any...
Skunk2 Pro Series Honda/Acura H to K Intake Manifold Adapter (Race Only) - 307-05-0305
Skunk2 Pro Series Honda/Acura H to K Intake Manifold Adapter (Race Only) - 307-05-0305
$178.95 $170.00
Skunk2 Alpha Series Honda F20C Connecting Rods - 306-05-1180
Skunk2 Alpha Series Honda F20C Connecting Rods - 306-05-1180
$496.25 $471.44
Skunk2 Pro Series 06-10 Honda Civic Si (K20Z3) Intake Manifold (Race Only) - 307-05-0320
SKU: skk307-05-0320
Product Details

Everything You Need To Know

Review product information, shipping and returns, and price-match details before you order.

Product Info

Skunk2s engineers went back to the drawing board when they set out to improve the already popular 06-11 Civic Si's RBC intake manifold. Each of Skunk2's Pro Series Intake Manifolds for Honda's K-series engines feature larger plenums and shorter, oversized runners when compared to the RBC, and are cast with thicker wall material, leaving room for further porting for high-horsepower applications. Instead of producing a manifold with a significantly oversized plenum and excessively short runners that would sacrifice mid-range power, Pro Series manifolds were designed for the 'street enthusiast' who wants more power but doesn't want to sacrifice mid-range performance to get it. The results are improved airflow, an enhanced venturi effect, and both mid-range and top-end power gains. Skunk2's all-new, cast-aluminum Pro Series Intake Manifolds for Honda's K-series engines are a direct-fit replacement for all 06-11 Civic Si engines thanks to their unique design and throttle body flanges, which are compatible with OEM throttle bodies as well as those as large as 76mm. A thermal-insulated intake manifold gasket is also included, making for a truly bolt-on installation (no drilling or modifying required). Pro Series manifolds also incorporate an angled-runner design, which allows for ample hood clearance on almost any engine combination. Pro Series Intake Manifolds offer horsepower and torque gains greater than the popular RBC manifold but without compromising mid-range power output. The design incorporates runners that are similar in length to the RBC's but with larger bores, a special tapered design, as well as a larger, tapered plenum that together preserve mid-range power but increase and accelerate airflow to allow for significant top-end power gains. Pro Series Intake Manifold runner exits are also machined and hand-finished to best match the cylinder head's ports.

Features & Benefits

  • Ideal For Turbocharged And Naturally Aspirated Applications
  • 72mm Throttle Body Opening Can Be Port-Matched Up To 76 mm
  • As Cast
Read More
Read Less

Shipping on new purchases

In Stock Items:
In stock items typically ship within 1-3 business days. Most items arrive within 2 business days, but there are situations where it may take up to 5 business days.

Special Order Items:
Special order and out of stock items are product-specific and lead times can vary. Please e-mail us if you are looking for an ETA / Lead Time on a specific product. Special order orders are subject to cancellation if the vendor cannot provide any ETA.

Returns Policy

To start the return process, please e-mail sales@allianceracing.com

Include the following:
Subject "Return for Order#"
Order Number
Part Number
Reason

Returns are eligible for up to 14 days from delivery of items. Accepted refunds can take up to 7-10 business days to process. All refunds are subject to a 25% restocking fee, if opened. Customer may be responsible for return shipping. If 14 days have gone by since your item was delivered, unfortunately we can’t guarantee you a refund or exchange. We reserve the right to deny any return request, based on provided information.

Alliance Racing is not responsible for ensuring part fitment. It is the responsibility of the purchaser to ensure the parts being ordered are the correct fitment for the vehicle intended. Alliance Racing will not accept any returns for incorrect fitment after product is opened.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

Shipping

To return your product, mail your product to:
Alliance Racing LLC
8810 Twin Lakes Blvd
Tampa, FL 33614

In many cases, you will be responsible for shipping costs to return your item. Shipping costs are non-refundable. If you receive a refund, the cost of shipping will be deducted from your refund.

Depending on your location, the time it may take for your exchanged product to reach you may vary.

If you are shipping an item over $100, you should consider using a trackable shipping service and/or purchasing Shipping Insurance.

To initiate a price match, please e-mail sales@allianceracing.com with the product information (SKU, URL, & Part Name) and a link to the competitors product page for us to validate the price match eligibility.

Please note that there are cases when we cannot offer a price match, but we will do everything in our power to try to match it. Some manufacturers have Pricing Policies that we have to adhere to.

Your cart

×