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CTS-V dyno, stock Vs wait4me tune + 2.55 pulley

19875 Views 52 Replies 32 Participants Last post by  6speeder
Had Chris and Hoyt at Dyno Edge install a smaller pulley on my CTS-V. With a mail order tune this is what we got. First run is stock, last is with the pulley and tune, no other changes.

I'm pleased. :headbang:
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What an awesome car I love supercharged V8 sedans.

Wish we could of raced when your car was still stock...
Are there any other local car sites that arent dead?
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