Reduce backpressure and increase reliability with Cobbs CAD designed uppipe. Features an investment cast design and available in either 304SS or Inconel 625. Direct bolt in replacement for the factory catted uppipe. Complete with studs installed. Gaskets not included. Available with or without a EGT bung pre-machined for the factory sensor. Failure to use the factory sensor will result in a Check Engine Light unless you use the appropriate AccessPORT mapping.