The Shrader cammed idle tune is now available for your 2015-2017 Mustang GT ! This special tune gives the car a unique lopey cam sound when idling, which gives it that signature sound that people have come to expect from a performance Mustang. Using the variable cam technology of the 5.0 Coyote engine, we are able to move the camshafts in a more favorable position for cam lope. This change to the programming of the PCM will not affect normal driving performance, and is not active during WOT (wide open throttle) performance. It is only active in off-throttle engine idle situations. Check out the video of our Roush RS2 with this same tune to hear it for yourself.
As part of your cammed idle purchase from Shrader, we will include two (2) tune files designed for use with premium gasoline only. One tune will be for normal cam operation, and the other will be with the Cammed Idle feature. You can switch between the tunes at any time by reflashing the car with your programmer. An SCT handheld programmer is required to use our tunes. If you already have an SCT programmer, we will send the files to you by e-mail and you can download it into the device yourself. The instructions for doing this are located here on SCT’s website.
We can also make adjustments for other basic bolt-on upgrades such as the JLT cold air intake, GT350 intake manifold, and Longtube headers. So please select the proper dropdowns below. We do not provide remote tunes for supercharged or turbo cars, but we can do a custom dyno tune on our Dynojet if needed. Call to schedule that appointment.
SPECIAL NOTE: If you have the factory catalytic converters on the car, we do not recommend letting the car idle for more than 15 minutes at a time. Due to the overlap of the cams in this mode, it can possibly cause premature failure of the cats because of the rich fueling condition that occurs at idle. We recommend aftermarket headers/midpipe on the car or have removed or gutted your converters in order to take advantage of the cammed tune. (There may be legal restrictions on removing converters. Check your local and state laws.) The louder your exhaust is, the more noticeable the Cammed Idle will be.
All tuning is developed in-house by Shrader Performance using SCT software. There are no returns allowed on custom tuning due to the nature of digital files.
This order page is only for the 15-17 Mustang GT’s and Roush stage 2’s.
Here’s a short video clip of our Cammed Idle Tune:
First Video Link
Here’s a longer video clip of the Cammed Idle Tune from startup:
Second Video Link