DiabloSport inTune i3 Platinum with PCM Swap for 2015-2017 Ram 1500 2500 Durango Grand Cherokee and Wrangler - 8321-X
$699.95
8321-X
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The DiabloSport 8321-X pairs the inTune i3 Platinum handheld tuner with an unlocked replacement PCM for 2015-2017 Ram 1500 and 2500 trucks, Dodge Durango, Jeep Grand Cherokee and 2015-2018 Jeep Wrangler JK. These vehicles have locked factory PCMs; the cross-shipped PCM arrives unlocked and programmed for your vehicle so the i3 can load a tune the day it arrives.
DiabloSport's published gains on premium fuel: 20 to 25 rwhp on the Ram 5.7L, about 20 rwhp on the 5.7L Durango and Grand Cherokee, and up to 18 rwhp on 3.6L applications. Tunes are included for 87 octane and premium, with a performance TCM calibration for the 8-speed.
Vehicle compatibility
- 2015-2017 Ram 1500 with the 3.6L or 5.7L and Ram 2500 with the 6.4L
- 2015-2017 Dodge Durango 5.7L
- 2015-2017 Jeep Grand Cherokee 5.7L and 6.4L
- 2015-2018 Jeep Wrangler JK 3.6L
- Dash-mounted touchscreen version: Trinity 2 EX 9321-X; phone-app version: PredatorX DS-MFD15
Tuning and adjustment features
- One-time PCM swap included; no vehicle downtime waiting on a mail-in unlock
- Preloaded 87 octane and premium tunes with a performance 8-speed TCM tune
- Adjustable throttle response, MDS disable, speed limiter removal
- Speedometer correction for taller tires
- Read and clear codes, data logging on the device or to a PC with DV2
- Wi-Fi updates and support for custom tunes from DiabloSport's CMR network
What is in the box
- inTune i3 Platinum handheld
- OBD-II and USB cables
- Instructions and PCM swap registration details
Installation and limitations
The PCM is cross-shipped: after the kit arrives you register the swap with DiabloSport using the i3 serial number and your VIN, a $1 pre-authorization is taken and released, and the unlocked PCM ships free by 2nd Day Air. Save the stock calibration with the i3 before you remove the factory PCM, install the new module, load a tune, and send the original back in the box and label provided. Swapping the PCM may set a trouble code that does not show on the dash. Not for use in California.
Specifications
- Part number: 8321-X
- Brand: DiabloSport
- Emissions: Not legal for sale or use in California
- Warranty: 1 year manufacturer warranty
- Country of origin: United States
- Packaged size: 6 x 5 x 2.5 in, 1 lb
- UPC: 810065217622
Frequently asked questions
Why does this kit need a PCM swap?
The factory PCM on 2015 and newer Mopar vehicles is locked to outside tuning. DiabloSport supplies an unlocked, programmed replacement so the i3 can flash it.
How does DiabloSport get my VIN?
You enter it when you register the cross-ship with DiabloSport after the kit arrives, along with the i3 serial number. Nothing is needed at checkout.
Do I have to send my old PCM back?
Yes. The swap is an exchange. DiabloSport provides the return box and label; return it within their stated window or the pre-authorization becomes a charge.
How much power will I gain?
DiabloSport publishes 20 to 25 rwhp on the Ram 5.7L, about 20 rwhp on 5.7L SUVs and up to 18 rwhp on 3.6L applications, on premium fuel.

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$699.95
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