tighting exhaust bolts n lookin things over i looks over at my 97 c5 n notice sway bars look exactly same ..same size etc..thought n read z51 has heavier? doesnt look it..or could my c5 have been beefed before i bought?

The bars should be 25mm or 1" in the back and 30mm or 1 1/4" in the front. If your C5 has the same size, then 1 it is also a Z51 or someone has upgraded the bars.

I just went out and measured 007s (factory Z51) and that is exactly what they measure.

thank you bro..dint use caliper but my eyes say the 97 n this 05 has ame size rear sway..05 has z51 badges but i havent looked in box fer code has way tighter smoother shifting,,got into a pissy issue thou as tunrt on air yuko dude mayun it wreaked bad..found issue to be mouse had built home in cabin air filter so removed n warshed it all up ..lil chit better nawt have hurt anythin else..musta been befo got it anyways will spray some stinko stuff n see ifn git er done,,which brings another question ,,do these c6s have like variable speed blower as in hit high n it spins up to speed? does it fast but nawt just thump n on high nknow wud i mean..sounds good n clear..ony ask so dont dig deeper into fan motor,again no sounds like anything in motor n spins fast jus does it like a variable speed house hivac nawt instant high as most