If your a tuner in Jax, you need to know this business.

Fantastic experience and service. Took great care of my car and answered all questions and concerns.

Ive gone to Steve two times. Once in 2016, and again this December to tune for a new turbo. Both times he did an incredible job tuning my WRX. The car runs better, turbo spools smooth, and overall just feels healthier.I leave Florida next year, and will hate not being able to do business with him, and having to find a new tuner. He is very professional, down to earth, and a genius when it comes to tuning cars. I cant stress it enough. If your looking to tune your car, give him a call! He also tunes other types of cars.

Beast with the tunes wanna make power mase is your man.!!!!!

What else ? Professional , he’s really cool and chill guy , get it done fast , I brought my Lexus to get a tune and he did really good

After getting a cat back exhaust system installed on my Camaro ZL1 1LE and previously had installed a ported TB and Rotofab Big Gulp CAI I knew it was time for a tune. Steve most definitely hooked it up!!! He knows what hes doing, while taking the time to make sure its done right! Really good customer service and professional guy. For sure shows a passion in what he does. Would definitely recommend Steve to anyone who needs theyre race car done right!!

I couldnt be happier with the service. I own a 2019 STI with a Cobb turbo-back exhaust. After Steve applied his custom tune my car not only outputs more power, but its response is quicker and smoother. Fuel consumption has also improved. A massive improvement from the Stage 2 OTS map I was using. If you are the fence I highly recommend you give him a call.

Mase did an amazing job at tuning my vehicle at a great price

I had my 2015 BMW M4 tune with the BM3 and it was ok.. but i knew i could get more with all the upgrades and bolt ons i have done..after carefully debating whether to ask Mase to take a look and suggest what can be done i pulled the trigger, i wanted 3 tunes for 3 types of fuel i was gonna run.. and after all said and done i am extremely happy with the turn out and will be going back and referring others .. he was on point and very professional , i should have went with him in the beginning!!!! KUDOs TO Steve keep up the awesome work.. ill be seeing you for that last tune!!!

I asked Steve at Mase Engineering to tune my vehicle ECUs to unlock some HP and account for exhaust system upgrades. The day that he received the ECUs: 1) He precisely opened the ECUs. 2)He reprogrammed them with his improved engine calibration, 3) Resealed the ECU units 4) Shipped them back with Next Day shipping. He did all of this in one day! I had the ECUs back 48 hours after I sent them. That is the kind of wicked fast turn-around time you want in the peak-driving summer months. The new tune is very awesome and was immediately evident on my first drive. Thanks Steve!

Truly a great shop

If your import ever needs to be tuned, this is the place to go in Jax.

He did great job on my tune