Acura is turning up the heat on the Integra Type S with a tantalizing prototype packed full of racing DNA. Enter the Integra Type S HRC Prototype, a street-legal machine brimming with performance parts developed by Honda Racing Corporation (HRC), the very team behind the hardcore Integra TCX race car.

Honda’s racing arm, recently rebranded from Honda Performance Development (HPD) to Honda Racing Corporation (HRC) in late 2023, is best known for spearheading the company’s IndyCar and IMSA campaigns. And come 2026, they’ll be back in Formula 1, supplying engines to Aston Martin. But right now, they’ve got their sights set on the Integra Type S, blending track-tested performance with street-ready flair.

The HRC Prototype is a beast, borrowing extensively from the TCX race car. Up front, there’s a larger splitter and additional cooling ducts, complemented by sizable hood vents. Out back, an adjustable carbon-fiber rear wing adds both style and downforce. Weight, already a strength of the stock Type S at just over 1,450 kg, has been slashed by around 90 kg. How? By swapping the standard hood and rear door panels for carbon fiber, installing fixed-back Recaro bucket seats, replacing the rear seats with a carbon-fiber shelf (perfect for hauling a spare set of wheels and tires to the track), and ditching the air conditioning.

But it’s not just about shedding pounds. The prototype boasts a larger intercooler, twin oil coolers, and a performance exhaust system straight from the TCX race car, hinting at serious performance potential, even though HRC hasn’t yet revealed any official power figures. The suspension has been dropped by 15 mm, with upgraded springs and dampers, an adjustable rear anti-roll bar, and camber plates front and rear to fine-tune handling.

The wheels are the same forged 19-inch units as the stock Type S, but the widened negative offset boosts the track by 30 mm front and rear. The prototype swaps the standard Michelin Pilot Sport 4S tires for aggressive Pirelli P Zero Trofeo Rs—the same tires that helped our long-term 2019 Civic Type R hit 1.05 g on the skidpad and cut its 100–0 km/h stopping distance to a mere 43 meters. Up front, brake rotors grow by 30 mm to a whopping 381 mm, while six-piston Brembo calipers replace the stock four-piston units, ensuring this Integra stops as well as it goes. Holding it all together is a cross-car brace where the rear seats once lived.

While HRC hasn’t dropped hard numbers on just how much these upgrades improve performance, it’s clear they’re aiming for more than just cosmetic tweaks. The question is, will these parts be sold individually, or will we see a full-on HRC-badged Integra package? Either way, we’re eager to see if this concept makes the leap from Monterey Car Week showpiece to something you can bolt onto your own Integra Type S.