If you are installing a Flowtech exhaust system, you should really give some thought to a set of Flowtech headers. With Flowtech headers, you can enhance both the sound and function of your exhaust system and smooth out your airflow overall. Of course, to install the Flowtech headers properly you need to install the right Flowtech header gasket. You really cannot attach metal to metal, especially different materials, and expect them to form an air tight seal. The Flowtech header gasket is designed to conform to the block and the header and create an airtight seal. The airtight seal provided by the Flowtech header gasket ensures that all of your exhaust gasses will go to the right place and with a minimum of turbulence. Headers improve your power by smoothing out airflow, and without the gasket, this is impossible. If you have installed a set of Flowtech headers and you hear an exhaust leak at the block, it is likely that either your Flowtech header gasket has failed, or that you have forgotten to install it, which is much easier to do than you would think. Motor enthusiasts should always get professional support and help while looking at high-quality auto parts from us. Because you deserve that, we make available a 24-hour, 7 day a week sales help call bureau to answer all your queries. Nobody likes to pay for shipping, so your parts come with FREE shipping for all orders over $50. If you spot a lower price elsewhere, call us - we will beat any price advertised elsewhere.