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Protects EGR Systems From Damaging Heat, Oil, Grease, Etc. Installs Without EGR Pipe Removal High Temp 2000 F Rated 11.5" x 4.5" Design Fits 1985-1988 Corvettes (Some 1989) Made In The USA Insulating Corvette EGR valve pipes not only…

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Reproduction Of Original Fits 1957-61 With Fuel Injection 1962-74 Upgrade Or Heat Valve Replacement Fits 2" Exhaust Manifold Outlets Made In The USA …

58-74 cars used the exhaust heat riser valve. 2 inch ID NOTE: When installing the heat riser, the butterfly weight goes toward the rear of the car. …

Reproduction Of Original Includes Hanger, Clamp And Bolts Made With Correct Rubber Material For Heat Resistance And Looks OE Made In USA …

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Reproduction Of Original With 2-1/2" Exhaust Manifolds Used In Place Of Heat Riser Valve 1966-74 Upgrade Or Heat Valve Replacement   …

  Protects EGR Systems From Damaging Heat, Oil, Grease, Etc. Installs Without EGR Pipe Removal High Temp 2000 F Rated 4.5" x 4.5" Design Fits 1987-1991 Corvettes Made In The USA Insulating Corvette EGR valve pipes not…

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Protects EGR Systems From Damaging Heat, Oil, Grease, Etc. Installs Without EGR Pipe Removal High Temp 2000 F Rated 15" x 4.5" Design Fits 1990-1991 Corvettes (Some 1989) Made In The USA Insulating Corvette EGR valve pipes not only…

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  Replacement Hanger …

58-74 cars used the exhaust heat riser valve. 2 and 1/2 inch ID NOTE: When installing the heat riser, the butterfly weight goes toward the rear of the car. …