pb29590
Well-Known Member
- Thread starter
- #1
Good evening,
I recently purchased a used 2017 mustang GT from a dealership. It has about 1500 miles on it. The modifications that it has are a Roush cold air intake, Roush axle back mufflers and a Roush H pipe. I just had it tuned and it is making 426 HP. It was making 378 before the tune. It is running smoothly but the gas mileage is deplorable. It is registering about 16 MPG overall. The SCT tuner that was used to load the tune did not throws any codes and the gas mileage was the same PRIOR to the tune. My last S550 got much better mileage and I relaize that this mileage is grossly abnormal. Any feedback is appreciated.
Thanks
I recently purchased a used 2017 mustang GT from a dealership. It has about 1500 miles on it. The modifications that it has are a Roush cold air intake, Roush axle back mufflers and a Roush H pipe. I just had it tuned and it is making 426 HP. It was making 378 before the tune. It is running smoothly but the gas mileage is deplorable. It is registering about 16 MPG overall. The SCT tuner that was used to load the tune did not throws any codes and the gas mileage was the same PRIOR to the tune. My last S550 got much better mileage and I relaize that this mileage is grossly abnormal. Any feedback is appreciated.
Thanks
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