Reviews

There's a reason why Stratified is highly recommended in the tuning community. I recently went big turbo on my Focus ST along with tons of supporting mods, but no built engine. I explained my goals of having safe and reliable power, and longevity given the age of my car. Ke was patient, helpful, and gave excellent guidance to help me meet my needs. He even helped me understand the safety and reliability of upgrading my injectors and high pressure fuel pump. After multiple months of back and forth (mostly due to me installing mods, and needing time off and good weather to safely do pulls and logs), we got my car to an awesome performance state. Mods: GTX2867R II, Focus RS OEM injectors, XDI Evo HPFP, CAI, catted downpipe, AWE Touring resonated exhaust, E40. Ke has informed I should be slightly above 400 whp. Can't wait to get my car dyno'ed to see how much I'm actually making. Thanks Ke for your hard work, and vast knowledge. This has been a wonderful tuning experience, and I highly recommend you consider Stratified for your next tune. Ke kicks butt and knows his stuff.

Absolutely amazing tuning service from Ke & super fast turnarounds for new revisions for each tune adjustment! Car feels completely different and I feel incredibly confident in its overall performance thanks to his incredible tuning experience.

Just finished up my 93 and E30 tune on my RS with Ke. It's been a great experience and can't suggest these guys enough. Alex tuned my speed3 a few years back so I knew I'd be coming back. My RS runs great and pulls super hard. About to go big turbo so I'll be back!

By far the best experience ive had w a tune/tuner. Definitely worth the money hands down. I have completely full bolts ons and started with 17 psi. I wound up ending with 25.75 psi. Very torquey and very quick. My tuner was very thorough. They made sure they could pull the absolute most of it and thats what you look for in a tuner/tune. The most bang for your buck and they did more then deliver. Im very very satisfied with them and would highly recommend them to anyone looking to further their power. Can't say enough good things about it, absolutely great.

Customer from germany here. Got my Big Turbo Focus ST Mk3.5 tuned by Ke Xu. Really love the tune and the way the car performs now. Ke Xu responded really fast everytime. I reached my power goals and got a reliable tune aswell. Would recommend this protune anytime.

I purchased a tune for my focus RS and Ke Xu was the technician that assisted me throughout the entire process. He was very helpful and prompt on any questions I had. My car feels totally different with the tune! Thank you Ke Xu!!