These headers measure 1 3/4 inches O.D and 42MM I.D. and are recommended for 3.4 - 3.8 liter Motors (1965 through 1998 - 911, 964 and 993 engines) **Will fit 993 motors in earlier 911 chassis. NOT 993 chassis. These headers include the Street Adapter pipes that can be used with the factory style banana muffler or after-market equivalent muffler that utilizes the same stock mounting locations after the headers. Our headers are made in the USA from equal length, mandrel bent 16 gauge mild steel. All headers maximize flow by utilizing 3 into 1 RSR collectors that are scallop cut. These headers are designed as a simple bolt on with no modifications needed. European Racing Headers also offers megaphones and stinger systems that bolt on to our headers. These extremely light weight systems are built for big horsepower with a broad torque band. Headers come with all gaskets, nuts, bolts and washers needed. Headers are sold in pairs only. We offer Ceramic Coating Services (See website)! Weight 24LBS
This product is designed and strictly intended for closed course competition track use only. This European Racing Headers product is neither designed nor intended for use on public roads or land. Such use is prohibited by Federal and State regulations.