GrimmSpeed Unequal Length Header for All Imports

CARB Compliance / Exemption Warning: If you live in California and your application for this product is not CARB Compliant / Exempt, then you cannot purchase it for public highway or street use (in that case it could only be used for formally sanctioned race use on a racing vehicle that may never be used on a public highway or street). If your application is not CARB Compliant / Exempt and you're shipping to California, our system will let you know on the final checkout page.

This manufacturer has a policy which prevents shipment to California for applications of this product that are not CARB Compliant / Exempt. Therefore, if you live in California, you will not be able to receive your part if it does not have a CARB EO #, even if it is for a dedicated race vehicle.

GrimmSpeed unequal length headers are a perfect combo for your performance exhaust or intake. They are a great way to increase horsepower, reduce back pressure, and refine your exhaust tones. Each kit is designed to retain that classic Subaru rumble, while being simple to install. GrimmSpeed unequal length headers can be used with your stock exhaust components or most aftermarket options as well. Each kit is made of full 304 stainless steel tubing, flanges, and badging. In addition, each header features single-piece mandrel bent tubes for direct and smooth airflow as well.

Standard Features on GrimmSpeed Unequal Length Headers:

• Unequal length design retains the classic Subaru rumble while still providing a big increases in power / torque and exhaust gas efficiency. Provides better turbo spool as well.
• Includes all gaskets and hardware required to install.
• Flanges are 14ga and directly fit to the stock components and most aftermarket options.
• 304 stainless steel tubes, flanges, and badging for strength and corrosion resistance.
• Single-piece mandrel bent tubes for direct and smooth airflow.
• No tuning required.
• Designed, built, and welded in the US.