--- product_id: 47280370 title: "8400 inTune i3" brand: "diablosport" price: "€ 770.24" currency: EUR in_stock: true reviews_count: 8 category: "Diablo Sport" url: https://www.desertcart.sk/products/47280370-8400-intune-i3 store_origin: SK region: Slovakia --- # Blazing fast read/write times WiFi-enabled updates Dyno-tested performance programs 8400 inTune i3 **Brand:** diablosport **Price:** € 770.24 **Availability:** ✅ In Stock ## Summary > 🚀 Unlock your ride’s hidden power and leave stock in the dust! ## Quick Answers - **What is this?** 8400 inTune i3 by diablosport - **How much does it cost?** € 770.24 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/47280370-8400-intune-i3) ## Best For - diablosport enthusiasts ## Why This Product - Trusted diablosport brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Setup:** New Easy Tune mode makes installation a breeze—no mechanic needed. - • **Always Up-to-Date:** Seamless WiFi updates keep your tuner cutting-edge without the hassle. - • **Precision Control:** Adjust timing, fueling, idle, speed & rev limiters, tire size, and gear ratios with surgical accuracy. - • **Performance Proven:** Dyno-tested tunes that unlock your engine’s true potential. - • **Cross-Platform Compatibility:** Works with Windows, Mac OSX, and WiFi—tune anywhere, anytime. ## Overview The DiabloSport 8400 inTune i3 is a professional-grade vehicle tuner designed for easy installation and precise engine tuning. Featuring dyno-tested performance programs, it allows users to customize critical parameters like timing, fueling, and speed limiters. With blazing fast read/write speeds and WiFi-enabled updates compatible across Windows and Mac OSX, it ensures your vehicle stays optimized and ahead of the curve. ## Description 8400 DiabloSport inTune i3 Review: Jeep tuner doesn't work with my jeep - Wanted a tuner for my 2014 jeep grand cherokee. Ordered the intune i3 8300 first bc 8400 was out of stock and it said hemi, so i figured id try it. Box said dodge but I tried it anyway. "Not currently compatible with connected vehicle." Returned it and got the 8400. Box said jeep. Updated the unit via wifi and got the same "Not currently compatible with connected vehicle." Tried it on my buddys Silverado and it worked immediately. Very pissed. Nothing back from customer service. Review: Definitely update the software before you install a tune! - This is a great tuner for stock cars. I have a 2010 Jeep Grand Cherokee S Limited with the 5.7. I downloaded the latest software through its WiFi with no problems and put the 91 octane Diablo tune on it. It really woke up this engine up! I change the throttle to 20% and all the shift points to 6400 RPM. I might go back to 5800 or 6000. The transmission is silky smooth now and I can squeak all for tires when I jump on it off the line. I’m getting a little bite more mpg but the power is now right there waiting for you. For 400 bucks and no other up grades this some what cheap looking tuner really helps all around drive performance. I have 10000 on it and the 0-60 times are better then when it was new I’m now in the low 6 second range. ## Features - New “Easy Tune” Mode for Simple Installation - Dyno Tested Performance Programs - Adjust options like timing, fueling, idle, speed limiters, rev limiters, tire size, gear ratios and more. - Blazing Fast Vehicle Read/Write Times - Windows, Mac OSX or WiFi Updates ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B075CG3GP3 | | Best Sellers Rank | #1,116,168 in Automotive ( See Top 100 in Automotive ) #186 in Automotive Replacement Engine Management Systems | | Brand Name | DiabloSport | | Color | No Color | | Customer Reviews | 3.1 3.1 out of 5 stars (45) | | Date First Available | September 4, 2017 | | Included Components | 8400 DiabloSport inTune i3 | | Item Package Dimensions L x W x H | 6.22 x 5.51 x 2.32 inches | | Item Weight | 0.4 Pounds | | Manufacturer | DiabloSport | | Material | Plastic | | Model Name | 8400 DiabloSport inTune i3 | | Number of Items | 1 | | Package Weight | 0.29 Kilograms | | Part Number | 8400 | | Size | No Size | | Suggested Users | unisex-adult | | Warranty Description | Warranty | ## Images ![8400 inTune i3 - Image 1](https://m.media-amazon.com/images/I/714zm6LvvWL.jpg) ## Questions & Answers **Q: Is this model made to fit a 2014 jeep srt?** A: It fits the grand Cherokee and the wrangler. Thank you. **Q: Would it work on an ae101 (1997 Toyota Corolla) ?** A: No we do not have any support for Toyota vehicles. **Q: Can u turn off eco mode (4 cylinder mode)?** A: Yes. Thank you. **Q: Will this tuner shut off mds on 2011 jeep grand cherokee with 5.7 hemi** A: The specific attributes for the tuner and your vehicle does not show that it will. Thank you. ## Customer Reviews ### ⭐ Jeep tuner doesn't work with my jeep *by J***E on March 11, 2026* Wanted a tuner for my 2014 jeep grand cherokee. Ordered the intune i3 8300 first bc 8400 was out of stock and it said hemi, so i figured id try it. Box said dodge but I tried it anyway. "Not currently compatible with connected vehicle." Returned it and got the 8400. Box said jeep. Updated the unit via wifi and got the same "Not currently compatible with connected vehicle." Tried it on my buddys Silverado and it worked immediately. Very pissed. Nothing back from customer service. ### ⭐⭐⭐⭐⭐ Definitely update the software before you install a tune! *by A***R on August 24, 2020* This is a great tuner for stock cars. I have a 2010 Jeep Grand Cherokee S Limited with the 5.7. I downloaded the latest software through its WiFi with no problems and put the 91 octane Diablo tune on it. It really woke up this engine up! I change the throttle to 20% and all the shift points to 6400 RPM. I might go back to 5800 or 6000. The transmission is silky smooth now and I can squeak all for tires when I jump on it off the line. I’m getting a little bite more mpg but the power is now right there waiting for you. For 400 bucks and no other up grades this some what cheap looking tuner really helps all around drive performance. I have 10000 on it and the 0-60 times are better then when it was new I’m now in the low 6 second range. ### ⭐⭐⭐⭐⭐ No 93 oct/Diablo tune after 2 updates! Customer Service Top Notch *by C***V on August 5, 2023* My 2012 GC WK2 5.7 hemi, came from factory with midgrade tune. Unit says 93 Diablo tune not available for truck(not in California). And if returned lose $$$. Best customer support on planet Earth! After contacted, they sent 93 octane tune and truck now is BEAST! BTW Turns off MDS system and very customizable. Highly recommend ## Frequently Bought Together - DiabloSport 8400 inTune i3 - WIT WHATEVER IT TAKES TRANSMISSION PARTS, INC Superior 6L80 6L90 8L90 Sure Cool System Upgrade STL010 with Bypass Gasket - WIT WHATEVER IT TAKES TRANSMISSION PARTS, INC 6L80 6L90 8L90 Sure Cool System Upgrade STL010 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sk/products/47280370-8400-intune-i3](https://www.desertcart.sk/products/47280370-8400-intune-i3) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-05-06*