C6....AT or 6SPEED??
6.0 lit up 05-07........., 6.2 lit 08
about 30 hp diff. the cust I've had with 05/07 vettes say the 08 is just better all around not that the 05-07 where not, GM just tweaked and already awsome platform. As for the Bi modal exhaust (sp) I wouldn't get it for $1000you could do a nice system or it could get you started. Most cust I sold too ended up taking the fuse out and just kept it open all the time. Int changes as well in 08 plus the key fobs. couldn't help with info on headers, cam, intake.... Corsa system is nice.
The LS3 more then just exhaust mods and there are a number of improvements from the LS2 platform. Motor Trend did a nice story on the engine.
http://www.motortrend.com/features/a...709_ls3_engine
I got about 45-50 RWHP from the mods listed in my sig.
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