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Exhaust› Headers, Manifolds and Components

Skunk2 Racing

Alpha Header V1 4-2-1 Stainless Steel Exhaust Header

$524.05 $497.85 Save $26.20

SKU: 412-05-1900

Special Order
Special Order
Ships in 4–6 weeks
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$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Skunk2 Alpha Header V1 is an exhaust header designed for Honda B-Series engines. It features a 4-2-1 tri-Y design with equal-length, sequentially paired, stepped primaries and a 2.5-inch outlet. This header is constructed from stainless steel with mandrel-bent tubing.
Show original supplier description
The Skunk2 Alpha Header V1 is engineered to enhance performance for Honda B-Series engines, specifically the 1999-2000 Honda Civic Si and the 1992-2001 Acura Integra GS-R/Type-R models. This header utilizes a patented 4-2-1 tri-Y design, building upon the technology found in Skunk2's popular MegaPower Headers used by race teams. Constructed from durable stainless steel with precision mandrel-bent tubing, the Alpha Series Header features equal-length, sequentially paired, and stepped primaries. The collector terminates into a 2.5-inch outlet. This product is a race application and eliminates the catalytic converter. It is compatible with genuine Skunk2 MegaPower Exhaust systems for maximum exhaust flow. The header includes a gasket. Skunk2 Racing offers a warranty against defects in materials and workmanship for up to 12 months from the original retail purchase date.
Vehicle Symptoms
  • Loss of power above 4500 RPM
  • Engine feels sluggish under acceleration
  • Exhaust note sounds restricted or muffled
  • Check engine light on with catalyst efficiency code
Diagnostic Codes
  • P0420 – Cat Sys Efficiency Below Threshold (B1)
  • P0430 – Cat Sys Efficiency Below Threshold (B2)
  • P0171 – FT Malf (B1)
  • P0172 – FT Sys Lean (B1)
  • P0300 – Random or multiple cylinder misfire Det
Relevant Conversations
  • 1999 Civic Si exhaust header upgrade for more power
  • Skunk2 Alpha Header vs OEM B-series header
  • P0420 after header install on Integra GSR
  • Best 4-2-1 header for B18C1 engine
  • Honda B-series header install time and tools needed
  • Skunk2 MegaPower vs Alpha header comparison
  • Will aftermarket header cause check engine light
  • High flow cat with Skunk2 Alpha header for P0420 fix
  • Acura Integra Type-R header upgrade options
  • B16A2 exhaust header gains dyno results

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.

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Specifications

BrandSkunk2 Racing
Part Number412-05-1900
CategoryExhaust
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