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Each long tube header is constructed from stainless steel 304 for corrosion resistance and longevity. The headers feature long tube 2 step 1-3/4 to 1-7/8 with a 3” true merge collector. This header also comes with cat-delete pipes and can easily be switched to high flow cats. Every Grams header is designed and precisely engineered to maximize exhaust flow and increase, both, horsepower and torque throughout the powerband (increases from 30+ whp).
The Grams Performance & Design Long Tube Headers for 2010-2015 Camaro SS use a true merge collector. The use of a true merge collector in Grams headers optimizes exhaust gas scavenging and improves volumetric efficiency. Unlike the more commonly used and less efficient straight collectors, the Grams Performance true merge collector allows the transition from primary tube to the collector to be the smoothest possible. This reduction in turbulence helps maintain velocity through the collector.
The Grams Performance & Design proprietary sizing system ensures the merged collectors, collector throat, and the outlet length of the exhaust are precisely sized for every engine and vehicle combination paired with rigorous research and development.
3” True Merge Collectors
Corrosion Resistant Stainless Steel
Stepped 1-3/4in to 1-7/8in Long-Tube Design
Cat-Delete Pipes Included
30+ whp Increase
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.