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Noticeable power increase!
Shipping was very quick they had it back to me in 2 days with priority shipping. The tune itself is excellent, there is a noticeable power increase throughout the entire rev range but the most noticeable difference is the power after 4k rpm. The stock tune drops off but now it keeps climbing up until redline.
Purchased an e-mail tune for my 2013 Regal GS manual. The car makes more power no doubt, but customer service was poor and the online ordering is awful. Apparently you need to pay shipping on an e-mail tune and when I contacted customer service to question this policy I was re-directed back to the online order form and told my shipping would be refunded (which it never was). The changes in the tune seem solid other than the major changes to knock sensor levels; hopefully these were verified on the dyno but my experience has been that the oem's spend a lot of time tuning these levels for a stock un-modified engine like mine.
Not your grandfather's Regal
I put on ZZP's Z54 turbo, ZZP's straight down-pipe & flex-pipe, ZZP's cold-air intake. I proceeded to use ZZP's Turbo silicone couplers (esp. the big elbow coupler) along with some custom rigging (little section of 2 1/2 pipe) to connect the Z54 to the pressure side of the stock intercooler input piping, so that the stock intercooler could be used. I also used ZZP's remote tuning service (Mike was very helpful, explained a lot, and did a pretty darn good job tuning). Finally, I made my own poly ft & rear trans mounts. On ZZP's advice I've been running E84 ethanol..... Bottom-line.... the Regal, fricken, flies now! I've got a supercharged Roush mustang, and a Focus RS, and I almost feel that this (sleeper) Regal is faster. Plus it produces some, straight-outta-Fast&Furious turbo sounds! I can't imagine what it would be like with the ZZP Intercooler.. Regarding the quality of ZZP's parts, they seem to be of very good quality. The only constructive criticism that may be worth mentioning, is that the installation instructions for the LHU application of the Z54 could use a little more detail. Especially regarding the possible need to grind down the exhaust manifold, because the cold side of the turbo turbine housing actually hits the manifold. However, it is understandable that they expect customers to know what they're doing, and in general the installation was much easier than I anticipated.
2012 REGAL GS
HAD SOME ISSUES WITH HP TUNERS AND MATT M. FROM ZZP HELPED ME AROUND THE ISSUE WITH EASE. THE TUNE IS DEFINITELY HIGH QUALITY, LOTS OF HOURS WENT INTO THE R&D . NOT ONLY DID I NOTICE POWER RIGHT AWAY BUT IT SOLVED MANY OF THE FACTORY DRIVEABILITY ISSUES THAT PLAGUE THE GS. ALL AND ALL A MUCH BETTER CAR NOW. #PROPPER