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Whenever I cut the car off you a short time and start back up, it will acts like it's going to stall. I can see the RPM go below 1000. Anyone have this issue?? It's a manual GT BTW.

Does anyone have issue starting their s550 mustang after they get gas? It happened to me twice, that after I get gas I couldn't start the car... It took like 5 try to get it to start.

While driving today all the sudden I heard sound like a phone vibrating on a desk only a lot louder, then my run power active light came on for awhile then all went away... Have anyone experience that before or know what might be the reason?

I'm thinking about getting the resonator delete, currently have the kooks muffler. If I want it to be louder should I go with x pipe or h pipe?

Is it really beneficial to install an oil catch can, if the car already have like 100k? If so, do you need both passenger and driver side or just passenger side?

I've a 15 GT running sync 2 it's super slow. I'm thinking about getting an Android touch screen, prefer with the mode switch, does anyone have any recommendations? I also thinking about getting the sync 2 to sync 3 on Amazon....

Does installing a throttle body spacer to a 15 GT improve performance? If so does it require a tune?

I want to get a full exhaust system for my 15 gt it currently has the kooks muffler so can I keep that or do I need to get a whole new set up? If so which one would give me the best sound and most power gain?

So I bought my 15 gt with kooks k0300-12. Does anyone know if that's just a muffler or a whole system??

I found a 2023 stock air box with sound tube on FB, I have read that the 18+ air box will give more hp, will the 23 fits in my 15 gt pp? If so how hard is it to swap it out?? And if I will need a tune??

I bought my 15 gt premium with performance used and I noticed there's a phone cord looking plug hanging by the rear view mirror.... does anyone know what that is? Thank you

So I've a 15 gt used with the 8 in display. I always thought the touch screen is really slow, is it just mine or everyone else experiencing the same thing? If so, is there a fix or the only option is to upgrade it to sync 3? If sync 3 is worth the money beside Android auto and apple car?

I got my first mustang last year, 2015 gt premium with the performance pack. I was thinking about putting on exhaust and found out that the car has kooks exhaust installed already. Is kooks any good? Should I change it for something else?