Porsche Cayman GT4 Gets Tuned To 488 WHP, Remains Naturally Aspirated

Porsche’s already working on the new 718 Cayman GT4, which will reportedly use the 911 GT3’s naturally aspirated flat-six, albeit in a slightly de-tuned form.

However, if you’re the proud owner of the outgoing model, whether the “normal” or the Clubsport version, and you would like to squeeze more power without turning to supercharging or turbocharging, then you might want to consider taking a look at DeMan Motorsport.

Based in New York, the shop is offering a few upgrades for the Cayman GT4 and Cayman GT4 Clubsport, which include an increased engine capacity from 3.8 to 4.25 liters.

The flat-six also gets a new crankshaft, custom pistons, stronger connecting rods and an ECU-tune, which have lifted the output to 488 hp (495 PS / 364 kW) and 360 lb-ft (488 Nm), according to RoadAndTrack – and those numbers have been measured at the wheels.

Also Watch: Pro Racing Driver Shows Cayman GT4 Owner What His Car Can Do On The ‘Ring

At the crank, it’s believed to put out 176 hp (179 PS / 131 kW) and 105 lb-ft (142 Nm) of torque more than the stock engine. Also, with those upgrades, the redline has increased to 8,000 rpm, and can be upped by an additional 500 rpm with titanium internals.

There’s a catch though, as the engine upgrade doesn’t come cheap. It costs $28,500, and that’s without the free-flowing exhaust and Cobb access port, which are mandatory to extract the aforementioned output.

Despite the steep price, DeMan says that Cayman GT4 owners have already updated other aspects of their rides, so the cost shouldn’t be a big problem.

This isn’t DeMan’s first upgrade for the Cayman GT4, as they used to offer a 4.0-liter kit, but these new offerings are superior in every aspect.

 

more photos...
  • Dude

    A near 500hp NA flat six sounds amazing but the actual exhaust note in that video did not imo

  • CC

    I’m skeptical about the power output. If it’s true, then that’s darned impressive and (in the Porsche world) the price is reasonable.

    • Munchma Quchi

      I’m skeptical that the colored baby is yours.

      • CC

        You know, when the foster care folks called to ask if we were willing to adopt an African American child, I completely forgot to check with every stupid son of a bitch on the internet to first make sure they were okay with it. Please accept my most sincere apologies for this oversight.

        • Munchma Quchi

          You’re g’dam right. The stupid SOB should be ashamed of himself. Send me his address and I’ll go punch him in the nuts.

          • CC

            Lucky fella. It’s not every day that a fifty-something, mountain climbing photographer with an FN Five Seven shows up to do stuff to your nuts.

      • willhaven

        The hell is wrong with you?

      • disqus_i7Pv0Rx9YT 3+

Porsche Taycan Laughs In The Face Of Range Anxiety, Travels 2,128 Miles In 24 Hours

Thanks to fast charging technology, the Taycan was able to travel the distance between Atlanta and LA in a day.

$5.5 Million Order For 100 Tesla Model 3s Falls Through Over Quality Issues

Tesla says it was the rental company that refused to take delivery, but the latter claims the automaker is to blame.

McLaren F1 LM-Spec Sets New Record As It Sells For Nearly $20 Million

This is one of two F1s ever that have been updated with the High Downforce Kit and LM-spec, 680 HP engine.

Lotus Evija Sets Hearts Racing During Pebble Beach Debut

The Lotus Evija is powered by four electric motors combining to deliver 1973 hp.

Hot Ford Puma ST Is Definitely Coming, Here It Is Entering Nürburgring Test Center

The Ford Puma ST should pack the same 200 PS (197 hp) 1.5-liter EcoBoost three-cylinder engine.

Tesla Model X Driver Claims Car Went Homicidal All By Itself Crashing Into Parked Toyota

This incident involving an out-of-control Tesla Model X took place recently in Puerto Rico.

Next BMW 4-Series To Be Previewed By Concept At Frankfurt Auto Show

The new BMW 4-Series will probably be revealed in production guise in early 2020.

Porsche Type 64 Leaves Auction Unsold After “That’s $17 Million Not $70 Million” Bidding Blunder

RM Sotheby’s said by mistake during the live auction that bidding hit a record $70 million.

New Bugatti Centodieci Joins Unique Exhibit Alongside Past And Present Hypercars

The Bugatti Centodieci was unveiled last week at The Quail in Pebble Beach.

Mystery Porsche Panamera Turbo Prototype Looks Extreme, Could Pack 820 HP

This intriguing Porsche Panamera Turbo prototype brings an extreme aero kit, oversized ceramic brakes, and “crazy” sound.