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Exhaust Why Mod? Modifying your exhaust can be inexpensive but costs can mount quickly the more changes you make. The entire exhaust system includes two exhaust manifolds (headers), two catalytic converters, two pipes, two mufflers and finally the exhaust tips. Any and all of these parts can be replaced or removed with varying degrees of […]

Enthusiasts that have installed long tube headers may find that their engines are running in opened loop because the O2 sensor is not heated to 600 degrees. This is especially true if the O2 bung is relocated to the collector. In the case of the Hooker 2149 header, the bung is located on the #7 […]

Hello This is a simple one that stumped me for about 1 year! I installed Full Length Headers on my 1991 Corvette (L98) the Headers are Headman Headers and they are not Jet coated or powder coated. Well after 1 weeks time my car would not start when it got hot? MMMMM Headers so i […]