The Dodge Challenger SRT Hellcat is the car that changed everything. When it launched in 2015 with 707 horsepower for under $60,000, it made every other performance car manufacturer rethink their pricing. A pony car with a supercharged V8 making more power than a Ferrari 458 — at a base price a regular person could actually afford. Four years of waiting on a dealer lot optional.
Challenger SRT Hellcat Specs
- Engine: Supercharged 6.2L HEMI V8
- Horsepower: 707 hp standard, 717 hp with premium fuel (2019+)
- Torque: 650 lb-ft
- 0-60 mph: 3.6 seconds (auto), 3.9 seconds (manual)
- Quarter mile: 11.7 seconds at 125 mph stock
- Top speed: 199 mph
- Transmission: 8-speed automatic or 6-speed manual
- Drivetrain: Rear-wheel drive
- Weight: 4,439 lbs
Challenger vs Charger: Which Hellcat to Buy?
Both run the same supercharged 6.2L HEMI, but they’re very different cars to live with. The Challenger is heavier by about 160 lbs, which costs it a bit in straight-line performance. But the two-door body is significantly stiffer, which helps handling. The Challenger also has a larger back seat than most two-door muscle cars — you can actually fit adults back there.
The Charger is the better daily driver — four doors, easier access, more practical. The Challenger is the better driver’s car — more involving, better steering feel, and it looks the part in a way the four-door never quite does. If you’re buying one to enjoy driving, get the Challenger. If you need to carry people regularly, get the Charger.
Model Year Guide
2015-2018: Original 707 hp cars. These are the most affordable on the used market now. The 8-speed automatic only in these years — no manual option yet. Solid cars but the infotainment is older Uconnect 8.4.
2019: Power bump to 717 hp on premium fuel. The Widebody package arrives — 3.5 inches wider with 305mm rear tires. The Widebody transformed the Challenger from a straight-line car into something that could genuinely handle. This is the year the Challenger got serious.
2020-2021: 6-speed manual transmission becomes available. If you want the most engaging Hellcat experience, find a 2020+ manual Widebody. The combination of 707 hp, wide rubber, and a row-your-own gearbox is one of the best performance car experiences available at any price.
2022: Jailbreak edition allows more personalization options. Also the year of the 807 hp Redeye Widebody — if you find one in good shape, buy it.
2023: Last year of production. The “Last Call” special editions — Black Ghost, Swinger, Shakedown, and others — are instant future collector cars. Production ended December 2023.
Common Challenger Hellcat Problems
Supercharger belt slip and wear — Same issue as the Charger Hellcat. Under hard launches the belt can slip. Upgraded belt tensioner kit from SLP or similar ($200-400) fixes this permanently.
Rear tire wear — The Widebody’s 305mm rear tires are sticky but short-lived. Budget for replacement every 10,000-15,000 miles with any spirited driving. The narrow-body’s 275mm rears last a bit longer.
Transmission wear on manual cars — The TR6060 6-speed is a strong transmission but repeated aggressive launches put stress on the input shaft bearing. Don’t do repeated hard launches from a standstill — it’s not what the manual is designed for.
Brake fade — The stock Brembo setup is excellent but fades under repeated aggressive use. Upgraded pads and annual brake fluid flushes keep this in check.
Heat soak — The supercharged engine generates significant heat. On back-to-back hard runs the power drops noticeably. An upgraded intercooler reservoir or aftermarket intercooler addresses this for track use.
Best Mods
Pulley + tune ($700-1,200) — The single best modification. A smaller supercharger pulley with a supporting tune pushes a stock Hellcat to 800-850 hp reliably. This is where the real fun starts.
Cold air intake ($300-500) — Modest power gain alone but essential for supporting a tune and pulley combo. Also improves the supercharger intake sound significantly.
Catback exhaust ($900-1,500) — The stock exhaust is actually decent but a Borla ATAK or Corsa Sport makes the supercharged HEMI absolutely thunderous. One of the best exhaust sounds in production car history.
Drag radials for strip use — The Widebody with drag radials can run deep into the 10s with just a tune and pulley. Mickey Thompson ET Street SS is the go-to choice.
Is It Worth Buying Now?
Yes — and prices are starting to reflect that people are waking up to what these cars are. The Challenger SRT Hellcat is the last traditional American V8 muscle car built in volume. Nothing like it will be made again at this scale. Clean 2019-2021 Widebody examples are the sweet spot — old enough to be affordable ($45,000-60,000), new enough to have the best features, and the Widebody makes them genuinely capable cars. The manual Widebody is already a modern classic.
Related Articles
Dodge Charger SRT Hellcat: The Complete Owner’s Guide — The four-door version of the same car.
Ram TRX vs Hellcat: Which SRT Is Right for You? — Same engine, completely different vehicle.
Dodge SRT in 2026: The HEMI Is Back, Everything Is Changing — What’s happening with the SRT brand now that the Hellcat era is over.