DMann Tuning OTS Stage 1 E30 MAP 2022-2024 WRX

Used to run the Cobb Stage 1 OTS with just a catback and had an ETS intake in my garage since the 3rd week I bought the car lol. Fast forward a year later and saw they had the OTS e30 on sale for Black Friday and I immediately bought it. After the first fill up of e30 the car has felt so much better. No knock or any bad reading on the AP. The turnaround time from when I bought it to when I received the tune was amazing considering their holiday sale. The instructions for filling up with e were straightforward and easy. Couldn’t recommend this OTS enough. Waiting on a few more parts before going pro tune but I definitely will be getting it from DMann

Wanted to try E30 in my VB. Got the tune the same day I ordered it and in the afternoon was fueled up and can confirm it makes much more hp/tq than factory. Car runs better than stock. Big shout out to Felix and Dmann for a great product and support!

I normally don’t write reviews but this tune is so good that I could not keep it in. For context, I have a 2023 Subaru WRX Limited 6MT with a Perrin intake. I was previously running the Cobb OTS 93 tune (the one that came preloaded in the Cobb AP) and I was constantly getting over -2.05 Feedback Knock and Fine Knock Learn. My DAM dropped a couple of times and although it went back up to 1.00, it was enough for me to purchase this OTS tune just to be safe.

DMann’s E30 OTS tune is simply outstanding. FBKs and FKLs are solid at 0 and DAM is steady at 1.00 with no drops. The throttle response seems crisper and the power delivery is very smooth. My “butt” dyno says I easily gained 30-40whp over the Cobb OTS tune. If I had to guess, I’m probably making between 325-340whp which is insane for just an intake, E30, and an OTS tune.

I decided to go E30 instead of a higher ethanol percentage because I’ve researched that these cars’ stock fuel systems are not meant for full E85. Even E50 is pushing it (longevity-wise) so I wanted to be on the safe side.

I highly recommend buying an ethanol test kit ($15 on Amazon) and test your local fuel stations. The gas station by my house tested their “E85” at 71% so I had to calculate about 6 gallons of it to convert and about 4.5 gallons of it for subsequent fill ups. There is an E85 calculator app in the App Store for iPhones/Androids that make the calculations a breeze. Many E85 stations will vary with their ethanol content so you should be testing frequently.

The legendary reputation of Dmann is easily showcased in this product. You will NOT be disappointed in this tune. Special thanks to Felix Performance and of course the legend, Anthony for creating such a fantastic product.

Jeff