Reviews: All Products

Cyrus was the one who tuned my Mazdaspeed 3. We did a E30 mixture tune and I could not be anymore happy with the car. He did a fantastic job with the tune, it is smooth, VERY powerful and perfect for everyday use. He answered every question I had to ask and VERY patient with me when I had to car down for about 2-3 weeks during the tuning process due to my local mechanic plumbing my EBCS incorrectly. Cyrus and stratified are my go to guys when it comes to anything Mazdaspeed and I will recommend them to family, friends, strangers! Anyone. Keep up the good work and thank you Cyrus, you are awesome!

Very good way to further customize your car to fit your needs. The pops and bangs option is amazing and makes me feel like I'm driving a rally car. Only problem I found was that sometimes it took awhile to get a revision emailed back because of the amount of traffic Stratified gained. Still completely worth it and I am well satisfied.

Purchased a 2007-2013 Mazdaspeed3 Custom Tune for my 2011 Mazdaspeed3. Goal: bolt on modifications/tuning with the stock engine and turbo. Tuned by Alejandro B.

Experience: very quick turnaround times with datalogs. Questions about the tune and modifications in general were answered fully. Even reviewed a datalog of a track lap, troubleshooting some issues noted on track day (outside the scope of the custom tune) - much appreciated! Alejandro is well versed on the Mazdaspeed platform, aware of the potential gains and issues with the COBB maps/software. Easy to chat with via e-mail.

Tune: Car started out with a flash tune for the modifications (pre-water methanol injection). Rough in lower gears, each progressive tune cleaned up the ride, increasing smoothness and power throughout the RPM range. 8 total iterations of the custom tune, including a tune with pops/crackles. Changed over from Load Based to Boost Based Tuning. Advanced timing to use the water methanol injection (Coolingmist).
Compared to the hub dynanometer, it was heartbreaking to see v1.1's v-dyno number. However, at the end of the tune, both HP and TQ had substantial gains (+68HP, +90TQ).

Excellent custom tuning experience with Alejandro @ Stratified. Very knowledgeable of the platform, and substantial gains to the smoothness and power of the Mazdaspeed3!! Highly recommended!

First off as a Master Automotive Technician I have driven thousands of different cars with different aftermarket tunes over the last 20 years. I own a 2016 Fiesta ST with a muffler delete and a drop in air filter. I was previously running Cobb OTS 93 octane map. When I purchased the E30 tune from Stratified, I was blown away at how well the engine ran. It not only produces considerably more power with less knock and more ideal AFR's than the Cobb OTS 93 octane map when your under boost, part throttle and cruising are also much better. I require less throttle to accelerate for normal driving and have more torque when I'm cruising at low rpms in high gear further requiring lesser amounts of throttle to maintain speed. Stratified Automotive have some great engineers and deliver a quality product. I will definitely be working with them on other projects in the future.

I have tried a variety of tunes and the Stratified tune is the most impressive.

The exhaust sounds great, the power is smooth throughout the rev range and the car accelerates fantastically.
Thanks to Alex for all his work and great service.

Upgraded my ancient 2.10 ots to 3 (stage 3) and pretty big difference in power and response.
I have this saved as a 98 map in case i ever run out of E85 and have to switch over maps