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  1. MattiePattie

    What’s the most you can performance mod without tuning?

    Its still Going and a total blast! Ive been posting most updates on IG. Probably going to just post a walk around video on YT soon because the list has gotten quite long. Here’s my socials LinkTree but most stuff is on IG https://linktr.ee/LoneStarStinger
  2. MattiePattie

    What’s the most you can performance mod without tuning?

    It’s been a few months and I’m just about done with bolt on stuff. Kinda wanna go with lap 3 1.5 ecu tune.
  3. MattiePattie

    Bad Transmission

    Yeah so I think I might be starting to have issues with my 2020 GT2. I’m only at 8k miles and suddenly this week, It kept shifting out of auto into 4th/5th gear on the hwy. I mostly drive in sport mode as well. I kept having to move back to D because I’m sport mode, it won’t automatically switch...
  4. MattiePattie

    What’s the most you can performance mod without tuning?

    Interesting. Thank you. I’m gonna add throttle controller to my mods research list. Are you traction limited rn due to tire type? Sent from my iPhone using Tapatalk
  5. MattiePattie

    What’s the most you can performance mod without tuning?

    I’m not sure if I want to do a tune. I’m wondering if there’s a good reason I should other than speed. For example if I keep adding things, will I eventually get a CEL or does it explode or something? Lol.. Current performance mods: MBRP Pro Series exhaust, Eibach anti-roll sway-bars, Direct...
  6. MattiePattie

    FS Complete Stock Exhaust system 3.3T

    Just bought a NEW 2020 GT2 stinger. Only drove it on stock exhaust for the first month, first thing I upgraded. Has everything with it. Factory assembly parts too. it was used for around 500mi. I will attach photos later. $900OBO Located in Tx I’ve wrapped it and I’m putting all my stock...


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