Application:   compatible with A-Body Chassis with turbo converted SBC 265 283 302 305 307 327 350 400 small block chevy V8 engines Chevelle, Malibu, El Camino, Impala, Bel Air, Camaro, Nova, Monte Carlo * NOT direct fit. For turbo conversion only * Can be used for single or twin turbo builds * Up and forward facing * Does not fit 1982+ third gen Camaro Features: -Excellent quality and durability to improve vehicle performance -Shorty design for power gain from idle to mid-range RPM -Fully mandrel bent tubes made of high quality 16-gauge 304 stainless steel -Head flanges laser-cut from high quality 3/8-inch thick steel plates -The flange is flattened by a hydraulic press for precise and leak free sealing -All joints are golden color TIG brass style welded to prevent cracking and wear -Flanges chrome plated for corrosion resistance -Mandrel bent pipes to maintain free flow -The accessories in the photos are included -1 year warranty for any manufacturing defect Technical Specifications: Header Type: Turbo Primary Diameter: 1-3/4 in. (45mm) Collector Diameter: 2-1/2 in. (64mm) Head Flange Thickness3/8 in. (9.5mm) Pipe Thickness: 16 gauge (1.5mm) Material: 304 Stainless Steel Finish: Natural