New in box set of headers for a C63.

I will include the description from OBX below:

OBX Racing Sports™ Product features in improving performance, efficiency, and horsepower. Characterized in mandrel bent for faster, smoother exhaust flow Dual T.I.G. welded construction for stronger hold. Accessories in photos are included! No installation instruction included in this kit, we recommend professional installation.

All OBX product will required filing for Manufacturer's Limited Lifetime warranty against manufacturer defects (Must fill out and return warranty card with a copy of the receipt and within 30 days of purchase date)

Specifications

•Primaries: 1 7/8"

•Port Shape: Oval

•Port ID: 1.4" x 2.1"

•Collector: 3"

•Outlet: 2.9"/3.0"

•Main Piping Size: N/A

•O2 Bung: 2

•EGR: 2

Disclaimer: “For off-road competition/racing use only. This product is not intended to be installed on vehicles registered for highway use. LEGAL IN CALIFORNIA ONLY FOR RACING VEHICLES THAT MAY NEVER BE USED, OR REGISTERED OR LICENSED FOR USE, UPON A HIGHWAY.” Please visit http://www.obxracingsports.com/about_us.php