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We just tried to tune three Cadillacs, one was a CTS-V which was easily tuned for both engine and transmission and two CTS 4's neither of which we could tune. It would seem that, to date, HP Tuners does not support the software for tuning the direct injection units. I know their first priority is Corvette, then pony cars and anything using the same basic power platform (LS series engines). Blown Caddy's are next in priority but the direct injection cars get little attention which, I think, is a mistake.

This said, does anyone know if there is a real tuning system available for the CTS with direct injection? I am not talking Diablo etc. rather a real system such as LS Edit?

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Check with trifecta http://www.trifectaperformance.com/default.aspx

High Feature V6

2010-2010 Buick LaCrosse 3.0L (V6)

2010-2011 Buick LaCrosse 3.6L (V6)

2010-2011 Cadillac SRX 3.0L (V6)

2010-2011 Cadillac CTS 3.0L (V6)

2008-2011 Cadillac CTS 3.6L (V6)

But my impression is they do the tuning and ship a pcm mostly but they appear to have a setup for shops.

Bruce

2016 Cadillac ATS-V gray/black

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