Long time lurker first time poster. I’ve got a 2015 Mazda 6. I’ve recently come across versatuner and saw they have a 91 octane tune. Wondering if anyone has tried it or used versatuner before and would recommend I give it a try?
Back in 2019, I replaced my original springs with Godspeed lowering ones and muffler with GW racing so I don't need the originals anymore. Just taking up space in my workshop, so whoever wants to get them (north Atlanta metro) can have them.