Automakers have been on a mission to squeeze more horsepower out of smaller and smaller engines, and although the Wrangler has resisted the engine downsizing that has afflicted many other SUVs, it’s time may finally be up. Autoblog reporting that a 2.0-liter four-cylinder engine codenamed “Hurricane” will likely be offered as an option on the next-gen Wrangler, possibly producing as much as 300 horsepower.

If these rumors are true, it raises a number of other questions regarding the next Wrangler’s engine lineup, including the future of the 3.6-liter Pentastar V6, and whether or not a diesel Wrangler is still on the table.

At 300 horsepower, the new four-banger would be more powerful than the current V6-powered Wrangler by about 15 ponies. It should also provide a much-needed bump in fuel economy figures for the Wrangler, which gets by with an uninspiring 17 city and 21 highway rating, which is good only if you compare it to the decidedly thirstier Wranglers that came before it. If FCA can manage to “wrangle” a 25 MPG highway rating out of the Hurricane engine, however, that would be a major coup for the Jeep brand as a whole, which is playing a game of chicken with revised CAFE and EPA fuel economy standards.

With better fuel economy and more power, FCA could position the Hurricane four-banger as a step up from the “base” V6 engine, and still leave room at the top of the lineup for a new application of the EcoDiesel V6. The Pentastar V6 isn’t likely to fade away just yet, but as engines continue making more power with less displacement, its days are certainly numbered.