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has anyone done headers (and what type) on an Ls3 and what did you think? Also what about the cats? I Have a stock 09 with vararam and a tune but would like to get a bit more out of it short of a cam. Figure headers would be that best place to start. Thxs fellas and have a great weekend. paul
You can pick up maybe 5-10hp and a lot of sound volume with the offroad x-pipe (cat delete) but the odor is not even close to making it worthwhile. Been there and back.
headers or dropping the cats Ls3
