Sale

Skunk2

Alpha Series 4-2-1 Exhaust Header

$572.35 $497.69 Save $74.66

SKU: 412-05-1930

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The Skunk2 Alpha Series exhaust header set is engineered for the 2006-2011 Honda Civic Si, offering a significant upgrade in exhaust flow and performance. Its design incorporates equal-length, sequentially paired, stepped primaries within a 4-2-1 tri-Y configuration, terminating in a True Merged Collector. This setup is optimized for improved exhaust scavenging and increased horsepower. Constructed with performance in mind, this header features a 2.5-inch outlet for the O2 sensor and a straight pipe design, eliminating the catalytic converter for maximum exhaust flow. Skunk2 is currently experiencing extended lead times for this product, with estimated delivery between 30-90 days. Buyers can still order backordered items, and they will be allocated from future reserved stock. Please be aware of the Prop 65 warning regarding potential exposure to chemicals that may cause cancer and reproductive harm.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandSkunk2
Part Number412-05-1930
CategoryExhaust

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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