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15 GT. I have the SCT X4. Can someone explian to me how to change my shift points. During take off, my 1st gear is changing by the time I hit 9 mph. way to quick. I want to get the maximum torque and speed out of each gear. Just had it tuned, dyno, and 3.73 gears put in. TUNER said I can change...

to shift from one gear to the next for maximum performance

I have a 2015 GT with 3.73 gears put in. Question is what is a good shift ratio? 1st-20mph- 2nd-40mph. etc

Mine does it in normal mode when i start it

Question: I had a Roush CAI installed with a ghost cam.. The guy did not put the MAF tube on. When I accelerate from a stop, it has stalled out on me. He said to install the MAF tube on. Is there any video to show hows to "install the MAF tube"?

Will the stock injectors work for more power or should I upgrade for more power?

2015 Mustang GT: So I have been researching E85. From my research I am lead to believe as long as you have stock intake manifold and CAI, you do not need different injectors or anything else to make the switch. Anyone else switch to E85 and not have to make any changes? How much power did it make?

What gear am I running?

Thank you, CobraJet. Will follow thry

New battery. No corrosion .

No, sorry

Anyone know what this code is? Starter code

Engine starter performance P06E9 code

Sounds like number 2

It sounds like a spinning. But after the 2nd try it starts. I attached a photo

I seem to be having an issue starting my car. Takes two times maybe to stsrt. Sounds like the starter to me and i plugged in my SCT X4 and this popped up

? Should I upgrade to the 18+ or the GT350 intake manifold with the JLT CAI for my 2015 GT? Right now there is a KN CAI and stock manifold.

https://www.amazon.com/Ford-Racing-M-9593-LU47-Fuel-Injector/dp/B009XRQ6JU

https://www.lethalperformance.com/ford-performance-2018-2021-gen-3-5-0l-coyote-intake-manifold-m-9424-m50c.html