When I got car it had fake side pipes. I'm going back with headers and under car exhaust. The rear panel now has no holes for tailpipes. Did Chevy make2 panels-one for side exhausts that was blank and one for under car exhaust with holes for tailpipes? Thanks

 

yes

 

There were also 2 types of panels depending on the year... '68-69 had round openings, '70 up had square openings.

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Several aftermarket Corvette vendors carry them.