I use a Brey-Kraus bar in my C6Z. You'd have a difficult time finding better quality. Not the cheapest, but well worth it in my opinion. You do have to drill holes in the sail panels to access the attach plates, but I bought new sail panels and will install those when it comes time to sell the car. Google Brey-Krause and take a look at the installation instructions. You have to buy from a retailer, can't go direct to BK.
I've had the Sharkbar in my car for about 2 years (first one installed in a C6Z) and it works fine, looks really clean. It requires cutting the side trim panels, as do ALL harness bars in order to access the mounting points associated with the seat belt retractors. Hardbar also makes a harness bar. BTW I did the install myself, and recently helped a friend install one in his Z.
I suggest you consider Hardbar ... talk to Gary Hoffman; many compliments on his customer service and support.
Post 15 here: Please Advise: Which Harness Bar !!! - Corvette Forum
BTW ... I believe Lancer33 is in Germany (without his Z ... )
I believe Brian (Cobra4B) helped a friend on a B-K bar install ...
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^VIR Turn 3 '08^-MungoZ06-'03 QS/ModRed - NCCC, NASA NCM Member - Z06 Fest IV,V,VI,VII
Most common names I read are Sharkbar, HardBar, and Brey-Krause, in order of increasing cost. Price ranges from ~ $350 to over $700.
There may be additional costs associated with installing harness belts; brackets and such. ... I haven't researched the required components for a harness bar, 'cause when I get harnesses, I'll attach to the weld-in roll bar I had installed last year ... mainly to get around the opinionated argument that one should not use harnesses without a roll bar (I believe that at least some tech bodies accept the C6Z (and even the C5Z as having a functionally-equivalent roll bar in the B-pillar structure.
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