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Skunk2 12-15 Civic Si Alpha Series Header

Skunk2 12-15 Civic Si Alpha Series Header-A1
Skunk2 12-15 Civic Si Alpha Series Header-A2
Skunk2 12-15 Civic Si Alpha Series Header-A3
Skunk2 12-15 Civic Si Alpha Series Header-A4
Skunk2 12-15 Civic Si Alpha Series Header-A5
Skunk2 12-15 Civic Si Alpha Series Header-A6
Skunk2 12-15 Civic Si Alpha Series Header-A7
Images may be for reference only

Skunk2 12-15 Civic Si Alpha Series Header

★★★★★ ★★★★★ 3 Reviews
Price: $398.99 (5% off)
$379.99 & Free Shipping

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Skunk2's Alpha Series Header utilizes our race proven designs in a more affordable and accessible to everyday enthusiasts. As a result, the Civic 2012 Si header was the perfect candidate to add to this line. The large 4 inch bellmouth design with 3 inch outlet is manufactured from high quality cast stainless steel for superior heat resistance and strength. This design enables maximum extraction of air flow and increased power. Heavy duty 1/2" thick flanges ensure secure and leak free attachments. Air flows smoothly through mandrel bent T304 stainless steel and a high quality stainless steel braided flex section. The one piece design eliminates the need for the catalytic converter maximizing air flow and allowing for maximum power. Bungs are also included for the OEM O2 sensors. No modifications are needed as it is a direct bolt on unit to the OEM exhaust cat back location.

Not legal for sale or use in California on any pollution controlled motor vehicles. See for state by state emissions requirements.

WARNING: This product may contain chemicals known to the State of California to cause cancer or birth defects.


Brand: Skunk2
Part Number: 412-05-1950
UPC: 873265001668
CARB Approved: No

Vehicle Fitment

Acura ILX
2013 Acura ILX 2.4L 2014 Acura ILX 2.4L 2015 Acura ILX 2.4L
Honda Civic
2012 Honda Civic Si Coupe 2013 Honda Civic Si Coupe 2014 Honda Civic Si Coupe 2015 Honda Civic Si Coupe
2012 Honda Civic Si Sedan 2013 Honda Civic Si Sedan 2014 Honda Civic Si Sedan 2015 Honda Civic Si Sedan

3 Reviews ★★★★★ ★★★★★

★★★★★ ★★★★★
4.67/5.00 Stars out of 3 Reviews
Write a Review
Skunk 2 down pipe
Brandon | March 27th, 2020
Amazing sounds great.
Skunk2 headers
Daniel Hernandez | February 2nd, 2020
Sounds amazing
Gabriel Segui | October 10th, 2019
I love getting my parts from you guys and it’s the only place I go to, to get my parts but the down pipe came to me with a lil bit of rust spots but other then that it makes my car sound amazing and aggressive thanks