Worlds First Demon on E85 | Warranty gone | Demon gets Riced out

Dodge built the Demon as a drag-strip-ready factory hot rod, and this owner decided factory wasn’t enough — converting his to run on E85 and voiding the warranty in the process. SRTMUSH documents the build with the same unapologetic attitude that’s made the channel a favorite for Mopar fans who’d rather modify than baby their cars. Watch to see what happens when you push a Demon past what Dodge signed off on.

Dodge didn’t design the Demon to be babied. It arrived from the factory as arguably the most extreme production drag car ever sold with a warranty, stripped of a passenger seat as standard equipment and tuned specifically to dominate the quarter mile straight off the showroom floor. So when an owner decides that factory tune still isn’t extreme enough, the question isn’t whether the Demon can handle more — it’s what breaks first when someone finds out. Even among Dodge’s own performance lineup, the Demon occupies a category by itself, engineered from the outset around a single quarter-mile-focused mission rather than the broader daily-driver compromises built into every other Charger and Challenger trim.

The Demon Was Already Extreme Before Anyone Touched It

The modification at the center of this build is a conversion to E85 fuel, and it’s not a minor tweak. E85’s higher ethanol content burns cooler and supports significantly more ignition timing and boost than pump gas, which is exactly why serious builders chase it on factory-supercharged engines like the Demon’s. But making that swap safely means recalibrating fuel delivery, tuning, and often supporting hardware — E85 rewards a car built to exploit it and punishes one that isn’t properly set up for the switch. Builders chasing serious E85 power on a supercharged platform typically upgrade fuel injectors and the fuel pump alongside the tune itself, since the increased flow demands of ethanol blends can overwhelm factory-spec fuel system components under sustained boost.

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Why E85 Changes Everything Under the Hood

Here’s the trade-off nobody sugarcoats: modifying a car this extensively means walking away from Dodge’s warranty entirely. For a car engineered with this much factory-backed performance, that’s a real decision, not a throwaway line — and it’s one the video doesn’t shy away from. As one commenter put it bluntly: “I love how you are like, forget a warranty.” That kind of transparency — showing the trade-off rather than glossing over it — is part of why builds like this one earn trust within the Mopar community instead of being dismissed as reckless.

The Warranty Trade-Off Nobody Talks You Out Of

What makes the Demon a compelling platform for this kind of build in the first place is that Dodge essentially designed it to be pushed further than a normal production car. Unlike most manufacturer-backed performance cars, which are tuned conservatively to survive a wide range of owners and conditions, the Demon shipped with drag-radial tires as a factory option and a launch-control system built around them — a car that all but dares an owner to keep going past stock. Dodge’s willingness to sell a factory car this track-ready, drag radials and all, stood in sharp contrast to most manufacturers, who reserve that kind of factory-backed extremity for limited-production specials rather than a trim level available to any Charger or Challenger buyer.

A Car Built to Be Modified, Not Preserved

The channel behind this build, SRTMUSH, has built its following on exactly that kind of unapologetic, modify-first attitude toward Mopar performance cars. It’s less concerned with preserving factory originality than with finding out what a car can actually do once someone stops worrying about resale value — and the comments confirm that’s exactly what viewers show up for, build after build. SRTMUSH’s catalog of builds tends to lean into exactly this kind of factory-extreme starting point, which is part of why the channel’s audience trusts its judgment on how far a given platform can realistically be pushed.

The Attitude Behind the Build

That audience connection comes through clearly: “Keep posting, my V6 Charger and I are living through you guys,” wrote one viewer, while another called out the specific appeal of this build directly — “E85 Demon? Jesus H.” It’s the kind of reaction that only makes sense from people who understand just how far outside the factory playbook this build actually sits, and who follow the channel specifically to see how far it can go. Viewers who follow SRTMUSH closely tend to treat each new build as a running conversation rather than a one-off video, checking back to see how earlier modifications held up under continued use.

A Following That Shows Up for the Commitment

Billed as the world’s first Demon running on E85, this build represents a specific kind of enthusiasm: taking a car Dodge already built to be extreme, and deciding that still wasn’t the ceiling. Whatever the dyno numbers end up showing, the real story is the calculated bet — trading warranty coverage for headroom most Demon owners never touch.

What ‘World’s First’ Actually Means Here

Warranty voids aside, builds like this one also carry real safety stakes that serious tuners take seriously rather than treating as an afterthought: a car making this much power on a fuel this different from what it left the factory tuned for needs a tuner who understands both the hardware and the margin for error, or the story stops being about performance and starts being about a blown engine on a trailer.

The Bet Every Serious Demon Owner Eventually Makes

That’s the bet every serious Demon owner eventually has to make, whether they take it or not: keep the factory safety net and leave real performance on the table, or void it and find out what the car was actually capable of the whole time. This build is what it looks like when someone chooses the second option without hesitation. Whatever this Demon’s next dyno number ends up being, the build itself already answered the more interesting question: given a car this extreme from the factory, some owners were always going to find out exactly where the real ceiling was. Builds documented this openly also tend to become reference points for other owners considering the same conversion, turning one car and one dyno sheet into a resource the wider Demon community keeps coming back to. Twelve months from now, whatever the current dyno figures show will likely already be old news — builds like this rarely stand still once an owner has proven the platform can take more.

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