i have a vs 1997 series II got quoted pace makers hi flow cat hi flow muffler and a rear muffler dual dump tips $1200 noticed a load of differance never heard a commodore sound like mine mandrel bent
$700 geez they must be 24 ct gold plated, OUCH, should be able to get a decent pair of headers for well under $500, maybe a lot less if your a good shopper, the wreckers might be a good place to save some $$$ if straight.