2-Piece 4-1 Racing design(8-2-1). Increase high flow air, instantly gain 10 to 15 Hp. No Instruction Included, We Highly Recommend Professional Installation. For 88-97 Chevy GMC Truck 307 / 327 / 305 / 350 / 400 5.0 / 5.4 / 5.7 small block V8 engine.
For 88-97 Chevy or GMC truck small block header. For Chevrolet C/K1500 C/K2500 Silverado Suburban Blazer Tahoe 307 / 327 / 305 / 350 / 400 5.0 / 5.4 / 5.7 V8 engine. For GMC Sierra Blazer Tahoe K5 Jimmy Carryall 307 / 327 / 305 / 350 / 400 5.0 / 5.4 / 5.7 V8 engine. Leave us your Tel no after paid if you did not left in the registeration form.
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