Yes, av1 offers both better performance and fuel economy than stage1v5 which was the last version of stage 1 before we made the monumental leap to Stage1av1. Stage1av1 has been out for a long time now--2 or 3 years I think and I suspect it will be the last version. I think we have reached the pinacle of SVX tuning with it.
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Originally Posted by dannmarr
Any advatages upgrading from the older stage1 to the newer one?
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