Hello everybody wondering if someone can help me? here's what I've got : recently purchased less than 2 tanks of gas in. (93 octane) 04 Subaru Sti. 6 sp manual 48k miles on odometer. Correct? Who knows at this point. Engine Mods: World One Performance Stage 2 Forged short block CP pistons and Rods P&L GT30R Turbo kit upgraded to a FP HTA 3076 APS Intercooler 725 FM P&L fuel system Fuel Surge tank w AN lines and fittings Aeromotive racing fuel pump 1000cc fuel injectors ARC oil pan KOYO radiator Spral radiator fan Setrab oil cooler Spal oil cooler fan Setrab Transmission cooler Spal transmission cooler fan Fujitsubo Equal length headers P&L Custonm downpipe Full titanium JIC bullet cat back exhaust Kart boy Exhaust hangers Cuysco Motor mounts Perrin master cylinder brake brace support Kartboy short shift kit and shifter bushings upgrade ACT clutch stage 3 Full carbon fiber driveshaft Issues so far: Car after driving for an hour ran ok whole time. Took father inlaw for ride turned around to go back car started to low idle then died, restarted car started driving again, about 100 yards,then it started to chug decelerate and when I would push on the gas pedal there was no response, ended up idling in second gear to a driveway pulled over was no throttle response at all. Turned the car off back on throttle response came back drove home without issue. car was searching for RPM going up and then down repeatedly when I was in driveway. I ended up taking car into JM in Osseo they told me it was running on a base map tune and they gave me a list of items to do about 1000 bucks worth. Decided to have them do the work was driving the car to the shop at JM was a cold day about four below zero and lost a seal in the turbo, ended up getting car towed after I smoked out all the cars behind me on Highway 94. JM replaced the turbo with a Garrett 3076R. Gen 2 I believe. Ran compression test (ok) Changed spark plugs, oil( rotella t6 5w-40 synthetic) & filter, front O2 sensor, replaced the coolant, put in a different thermostat as engine was running cold, had a 160° thermostat installed. they replace that and rewired fans into factory relays so they would come on at correct temp. They also reinstalled A fire ring that was missing in the wastegate causing it to always be open. They put a base map tune back on it, drove around and they said it was good to go,running good. ( I am not blaming them just trying to figure out where to go without hemorrhaging more cash. I think Jesse and Devin are great). Anyhow on way home (20 miles)car began to chug then died out. Waited a while on the side of the road then restarted and drove a little further it seemed that would make it a shorter and shorter distance every time I restarted the car. AP troubleshooting said miss fire on cyl 1,2,3,4. JM said if I get the car back there they will troubleshoot it for free try to figure out why it's doing what it's doing. (Before I had left with the car we discussed tuning it but I opted to not because I don't want to spend the money right now or risk having anything else go wrong during tuning but also what is the point if it's not running correctly and things need to be changed yet anyhow) Thanks for any and all help!