Next Generation Motorsports stainless steel 3-to-1 headers are made of thick SUS304 polished steel and are mandrel-bent to form and fit your Genesis Coupe 3.8L with the best performance results possible. Features ultra thick flanges and precise welds prevent cracking and offer long-lasting durability. These headers help your engine maximize its performance by allowing the exhaust gasses to flow more efficiently to gain power and performance. Includes gaskets, hardware, and brackets. Total weight: 13.7 lbs (compare to OEM weight: 28.6 lbs) Notes: For off road purposes only. Please check your local laws before ordering. *NOT SOLD CALIFORNIA CUSTOM ORDER ITEM: AVERAGE WAIT TIME TIME IS AROUND 6 - 12 WEEKS AT LEAST