Aftermarket upfit - Storyboards

After its European debut, founder Jan Kalmar, of Kalmar Automotive, drove his most powerful creation the 9x9 for 3 days, in over 3 countries

Dring from Italy, through France, and onto the U.K., the 3,000km (approx, 1,860-mile) road trip is a small part of the real-life testing that goes into the 9x9 development

During the trip, the 9x9 inspired by the Porsche 959 saw everything from highways to mountain passes, to the Nurburgring where it set a lap time

An excruciating amount of attention to detail has gone into making the 9x9 usable in all conditions

Like the 959, the Kalmar 9x9 interior is similar to the 993, but in this case, we have a few 992 touches

Despite being a hypercar "resto-mod", Kalmar 9x9 has cruise control, bright LED lights, and adaptive suspension, among other sophisticated tech

What is essentially a retro hypercar, the Kalmar 9x9 is meant for long-distance cruising

The engine is a 3.7-liter, twin-turbo, flat-6. Here, it's mated to an 8-speed PDK automaic

With 930 horsepower and 767 pound-feet, the 9x9 is able to cross several countries at tremendous pace

At around 3,080 pounds, Kalmar 9x9 is almost as light as the lightest Porsche 992, the 911 S/T

The 9x9 will be available in 3 different variants, Standard, Sport, and Lichtbau, with each model prioritizing different aspects and application

Real-life testing of the 9x9 continues, in order to make sure everything works properly

Next stop - Ales, France, where the 9x9 will receive high-performance testing and lay down some numbers

Prices will start at $2.15 million

Deliveries of the Kalmar 9x9 will commence in July 2025

Swipe up to learn more about the Kalmar 9x9 and what goes behind Kalmar's "We test in public" approach.

If you're a Porschephile, you've most likely heard of the Japanese Tuner RWB, or Rauh Welt Begriff

The brainchild of Akira Nakai, RWB has created close to 500 wide-body restomods since the 1990s, predominantly based on air-cooled 911s. Here are our top 10 picks

10. Like the animated Byamax, this RWB is a gentle giant

Despite the stock engine and transmission, this GT2-inspired 993 by RWB can take corners at blistering speeds

9. Aptly dubbed the RWB Targa, this 964 is the first Targa built for a U.S. customer, and the second RWB Targa ever made

Under the full RWB wide body hides a stock 3.6-liter flat-6 and a 5-speed manual. The KW3 coil-over suspension improves handling

8. Yoshiwara is one of the most unique RWB builds as it features a one-piece glass "Targa" top that extends to the rear deck lid

The clear-glass roof showcases the roll-cage and race-inspired interior

Some minor performance modifications include a new ECU, exhaust, and independent throttle bodies

7. Shinkiro is one of very few RWB Porsches built for Russian customers

This custom 930 was built by Nakai San in St.Petersburg and features a Mint Green paint

6. The RWB Rotana was to be the rawest race car and was meant to be an evolution of the RWB Stella Artoa – Akira Nakai’s first build and personal 964

The purple Rotana is a 993 Turbo and has received performance mods, including a GReddy turbocharger and a new exhaust, resulting in 575 horsepower

5. Rough Rhythms is not easy on the eyes. This RWB 993 boasts the widest rear end, at 2,080 mm

The 3.6-liter engine has been modified to 310 horsepower. The car is owned by a friend of Nakai San, who helped popularize RWB outside of Japan

4. Ichiban Boshi, an RWB 930 inspired by Porsche's legendary racing heritage and featuring the iconic Martini livery. Hence, the cool nickname

But that's not all. The engine has been heavily modified to produce 600 horsepower

3. RWB Adriana is the personal car of Nakai San, which was meant to go racing. It did and there is an interesting story behind it

The car made 300 horsepower from its 3.6-liter engine, but there were a few unfortunate events revolving around it

2. Jezebel is another car Nakai San built for himself, and it features a stunning Guards Red paint finish

This 930 was meant to be more of a daily-ish driver and features a fully restored interior with Alcantara seats

1. This RWB build, simply called 'Martini', is based on a 993 but features classic touches from the 1970s

Aside from the Fuchs-style wheels, the most prominent feature is the massive rear wing

Which one was your favorite RWB builds?

Swipe up to learn the interesting stories behind each of these RWB builds.

The Porsche Slant nose also known as "Flachbau” first appeared on the 930-based Porsche 935 race car in the late 1970s

The more aerodynamic front end improved downforce while making the car more slippery

The brainchild behind the Slant Nose was engineer, Norbert Singer, to which the famous Restomodder Singer Vehicle Design pays homage

The regular 930 Turbo had terrible aerodynamics - around 0.50 Cd or coefficient of drag

The Slant Nose front-end improved the drag coefficient to 0.39 Cd

The first road-going slant-nose Porsche was the one-off 935 Street

The "Flachbau" first became an option for the Porsche 930, in 1982

The 930 Slantnose is the only Porsche 911 to feature factory pop-up headlights

Slant-nose 930s did not feature engine upgrades and retained the stock 326 horsepower and 318 pound-feet of torque

The Porsche slant nose, was available, not just for the coupe, but also for the cabriolet and Targa body styles

But despite the inherent advantages of the Slant Nose front-end, over 95 percent of all Porsche 930 Turbos built, were ordered with the regular front-end

Additionally, German tuner RUF reportedly carried out some conversions, but they are believed to have been factory slant-nose 930, dubbed the RUF BTR III

This also included the likes of the 1984 RUF 935 RSR

Another super-rare Slant nose model is the 3.6 Turbo S Flachbau, based on the 964 chassis. Only 76 were built, with only 39 imported Stateside

The Gemballa Avalanche Turbo, seen here was an even more extreme expression of the Slantonose 930

In more recent times, 2019 to be more specific, Porsche revived the Slant Nose name once, this time with the 991.2-based Porsche 935

Production was limited to just 77 examples and its not road-legal

If you want to find out more about the history and current valuations of the Porsche slant nose, swipe up.

Swiss Restomodder, Erbacher goes about reimagining the air-cooled 911 like Singer Vehicle Design

Based on the 964 generation, Erbacher accomplishes this transformation with its own unique twist

The optional ducktail spoiler hides a 4.3-liter, air-cooled flat-6, by EGMO

The engine is based on the original 964 Carrera 3.6-liter unit, but almost nothing of the stock factory mill remains

The numbers? 430 horsepower, 339 pound-feet of torque

But, the numbers only tell half the story. This engine packs some pretty interesting upgrades like sequential fuel injection and Emtron custom ECU to name a few

With a carbon-fiber construction, the Erbacher 911 Carrera weighs just 2,160 pounds.

For context, the lightest 992 S/T weights 3,056 pounds

Even the smallest detail has been touched upon. For example, the windshield wiper operation is a modified version of the 993 system

Like the exterior, the cabin is classically correct and highly-executed with Italian hand-crafted leather, carbon fiber, and optionally, Alcantara

The six-speed manual features a tall shifter, bringing it closer to the steering wheel, for quicker reach

Costing $530,000, there are plenty of bespoke options available to help justify the steep price

Swipe up to learn more about what Erbacher does with the Porsche 964

Miles Works founder, Dominic Miles, said RWB cars were a big inspiration with creating body kits for the 996 and 986

He took on a challenge to make the unloved 996 as epic as possible, by improving upon the 911 RSR looks

This creativity also transitioned to the more affordable, Porsche 986 Boxster

The bespoke 986 body kit can be had in two different variants - "ultra-wide body" and a more restrained version

Optionally, you can get "humps" for the rear deck-lid, typically present on Porsche's Speedster models

In-house wheels with an extremely deep dish at the rear, finish the new looks

The Price? You can have the body kit for $6,000 or $7,500 with the optional Speedster humps

This represents exceptional value when it comes to transforming the humble and rather unloved 986

To ensure the 'GO' matches the 'Show', Miles Works will also offer mild performance upgrades like induction, exhaust, and lightweight flywheel

Swipe up to learn more about the Miles Works 986 Boxster and how you can get one

For those unaware, Manthey Racing is a German tuner based at the Nürburgring and has been racing Porsches for 25 years

Besides their racing efforts, they also develop performance kits for Porsche road cars, which are available through Porsche Tequipment

Porsche owns a 51% majority stake in Manthey-Racing, and in 2021 they became a full motorsport partner for the German brand

Mathey recently unveiled their highly-anticipated kit long-awaited kit for the 992 GT3 RS

Developed over two years, this new kit for the GT3 RS focuses on four key areas: aerodynamics, weight savings, suspension and brakes

Comprising 17 components, the Manthey Kit brings some significant upgrades when compared to the standard 911 GT3 RS

If you'll stick around, we'll show you how it differs from the standard GT3 RS; along with some exclusive shots of the global debut from the Icons Of Porsche event, recently held in Dubai

In order to improve downforce, the kit features a significantly enlarged spoiler lip up front, redesigned wheel arch Gurney flaps, and two dive planes on each side of the front bumper compared to the standard GT3 RS

Here's a closer look at the differences between the two cars upfront

Aerodynamics play a crucial role in any track-bred model and the GT3 RS is no exception. The standard variant has two roof strakes, along the edges

The function of the additional strakes is to take heat coming from the front radiator, and prevent it from entering the rear engine air intake

On the GT3 RS MR, you get six additional roof strakes, for a total of 8. They act as Vortex generators. Along with a Carbon-fiber sharkfin, it helps direct the air toward the massive wing for improved straight-line stability

This is complemented by a swan-neck mounted split-carbon fiber DRS wing, resulting in increased downforce and reduced drag

Manthey's kit also features aerodynamic hubs for the lightweight magnesium rear wheels. They work together with the rear diffuser and wing to enhance downforce

At the rear, a wider diffuser and elongated carbon fiber fins enhance downforce without increasing drag. This was a significant challenge for Manthey Racing

A closer look at the rear diffuser reveals that it is much more substantial, compared to the standard GT3 RS and has double radi

Manthey notes that a long diffuser on the standard GT3 RS extending to the underbody breaks the air flow. To address this, Manthey includes not one, but two kinks to maintain a steady air-flow

With the aerodynamic upgrades, downforce has increased by 20% over the standard GT3 RS. 2,204 lbs compared to 1,895 pounds at 177 mph

The standard GT3 RS already packs extensive CRPF (Carbon-fiber reinforced plastic) components. This top-down shot gives is a great view of the CRPF hood, roof, doors, and wing

The rear window has been replaced by a carbon fiber panel that is 25% lighter than the standard GT3 RS. The extensive use of carbon fiber means the weight savings should be substantial

Semi-active coil-over suspension along with four sensors for the wheels and three body acceleration sensors allow automatic damper tuning

This combined with spring rates increased by 30% on the front axle and 15% on the rear axle has helped improve the handling

Steel-sheathed brake lines have been added for improved pedal feel and response

The kit also includes racing brake pads specially optimized for track days

As for visual upgrades, the kit comes with a plethora of logos and decals, including door illuminated door sills

As for power upgrades, Manthey hasn't carried out any engine or transmission upgrades

Overall, the additional hardware and tweaks helps reduce dive, pitch, and roll during cornering, providing a more stable platform at high speeds

While official lap times are pending, based on extensive testing on racetracks, significant improvements are expected compared to the standard model

The 2024 Porsche 911 GT3 RS will set you back $244,995 before you start adding options

Add a few options and the Manthey kit and you are looking at a car that costs quite a bit more

We got an up-close look at the 992.1 Porsche 911 GT3 RS with Manthey Kit, which made its global debut at the 'Icons Of Porsche' event in Dubai

Here's a closer look at the eight vortex generators along with the carbon-fiber sharkfin and rear carbon fiber panel, instead of the rear windshield

The rear fin was in fact inspired by the 963 Hybrid racecar, also present at the event

Larger end plates enhance aerodynamics by preventing air from spilling off the wing tips

The carbon-fiber aero discs for the light-weight magnesium wheels, aid in improving rear-end downforce

Swipe up to learn more about the Manthey 992.1 GT3 RS and what it gets you in more detail.

What do you think about the 2025 911 GT3 RS MR? Please let us know in the comments below.

Some of the modern Porsche models are a bit too muffled, which is why modifying the exhaust is a common thing to do

This is especially true for the 991 and 992 Turbo models and some other models featuring particulate filters

Better exhaust flow, more power, and an epic soundtrack is why exhaust upgrades are so popular

ECU tunes are a great way to up the power of your Porsche, especially if it is already turbocharged

In some cases, the gains in output are 20 percent or more. Software mods best work with exhaust and intake modifications

Headlight mods are particularly popular among 996 owners due to the controversial form

Tinting the taillights of a 996, especially if it has the center strip, achieves 993-like aesthetics

Forced induction is surprisingly popular among owners of 911 Carrera models that are normally-aspirated from factory

Companies like VF engineering and RUF develop special kits for normally-aspirated cars that greatly increase performance

Comprehensive conversions typically accompany the forced induction with chassis and aesthetic upgrades like on the RUF Kompressor

Porsche's rich heritage has given us classic design cues that have become a staple in the Porsche communuty

The Fuchs-style wheels and ducktail spoilers are particularly common mods on modern Porsche 911s

Racing liveries like this Gulf theme have become so popular that Porsche is offering it and its colors through a special program

Porsche will even sell you a car cover with a classic Martini livery

This special-edition Porsche 991 Martini Racing was limited to 80 units

Swipe up to learn more about pricing for these popular Porsche mods

Performing na LS swap on a Porsche 944 greatly enhances performance without adding much weight

GM's LS engines are known to be affordable, durable and have plenty of aftermarket support

The 944 is a German Miata thanks to its balanced chassis and being lightweight

While the 944 Turbo is a desirable classic with a powerful engine...

non-Turbo 944 variants made as little as 150 horsepower

Even the lesser LS engines make over 300 horsepower with plenty of torque

Getting the LS engine to fit inside the 944 engine bay requires a few things

K-member spacers drop the engine lower so you don't have to cut the stock hood

The LS pushrod V-8 is fairly compact, but features a 90-degree V-angle, making for a tight squeeze

LS V-8 engines come in all shapes and sizes, they are fairly cheap, and aftermarket support is endless

LS-style flywheel, beefy clutch, and a C5 Corvette bell housing are some of the things you need

Some parts, like the water pump, may require additional modification. Luckily, the aftermarket has got your back there too

An LS V-8 swap can easily triple your Porsche 944's horsepower, even without forced induction

Swipe up to read all there is to know about performing an LS V-8 engine swap on a Porsche 944.

The four-cyinder Porsche 944 is an evolution of the 924

The two cars coexisted together between 1982 and 1988

The 944 Turbo came out in 1985 and quickly gained a reputation as one of the best-handing cars in the world

It was one of only four Porsche sports cars to feature a front-engine and a transaxle

Brembo brakes, and 50:50 weight distribution gave 944 Turbo drivers confidence, lacking in early 911 Turbos

The Porsche 944 Turbo was exclusively offered with a 5-speed manual transaxle and 3.375 final drive

Aside from the 1986 model year, all 944 Turbo models had ABS

Coupe models from 1990 and later featured a bow-shaped spoiler under the rear hatch

The cosy interior featured four sport seats, with the rear ones folding 50:50

All 944 Turbo models featured the newer interior that came with the 1985.5 update

With an average price of around $27,000, the 944 Turbo is a relatively attainable classic sports car

Swipe up to learn all there is to know about the Porsche 944 Turbo

German Tuner MANHART's kit takes one of the most collectible 911s and turns it to the max

The 991 GT2 RS was produced in 1,000 copies, making it desirable by Porsche collectors

Its MDH.NA engine is based on the Turbo S mill and makes 690 hp and 553 lb-ft from factory

At 3,241 pounds, the GT2 RS is one of hte lightest 911s. The Weisach package sheds another 66 pounds

MANHART applies tasteful mods to both the bodywork and the powertrain

The result is a mind-boggling 945 hp and 774 pound-feet of torque compared to the 690 horsepower and 553 pound-feet of torque from the standard car

The GT2 RS' 7-speed PDK has also been beefed up to handle more power

MANHART's visual treatment includes new, carbon-fiber aero kit

The new front apron is even more aggressive, thanks to new air intake vents and a new spoiler with side-extensions

Certain bits, like the front hood, were deemed aggressive enough and left unchanged

The stock rear wing gets TR 900 decals on the side

The carbon-fiber and Alcantara-dominated interior has also been left unchanged

Swipe up to learn more about MANHART's treatment for the most radical Porsche 991

These spy shots by CarSpyMedia show a 2025 Porsche 911 GT3 RS MR, which is a collaboration between Porsche and Manthey Racing, aimed at enhancing the performance of the standard GT3 RS

The MR features aggressive aerodynamics, including a massive swan-neck rear wing, vortex generators, and a redesigned rear diffuser, to increase downforce and stability

Additional aero enhancements include a redesigned front splitter with dive planes, larger canards, and a huge horizontal fin replacing the rear window

Manthey is also likely to offer adjustable coil over suspension for better adjustability

Lightweight magnesium wheels with aero discs upgraded brakes and braided lines

The MR is expected to significantly improve the GT3 RS's lap times on the track

But it won't be eligible for official Nürburgring records for a production car, due to being an aftermarket kit

The Manthey Performance Kit for the 911 GT3 is expected to be more expensive than the existing kit for the standard GT3's $60,500 asking price

While the MR is a track-focused machine, it remains to be seen how many GT3 RS owners will actually take advantage of its extreme capabilities

Given that the car in the spy shots looks production-ready, the official announcement should be soon.

If you are not a fan of the hybrid Cayenne Turbo, the MANHART CRT 800 packs more performance, without the gimmicks

Impressive performance gains: MANHART takes the numbers from 550 hp and 568 lb-ft to 809 hp and 804 lb-ft

This is enough for a 0 to 60 mph sprint in 3.2 seconds

Modifications include turbo upgrades, new software, intercoolers, and exhaust

With no hybrid tech on board, the MANHART CRT 800 has around 4,800 pounds to lug around

Aside from enhanced performance, the engine features aesthetic improvements

The package shwos best results on the non-hybrid Cayenne Turbo models

The 4-inch exhaust tips can be ceramic-coated or carbon-fiber

MANHART's signature golden accents add style ot the Cayenne Coupe's exterior

The wheels are 22-inch, wrapped in 285/35ZR22 tires at the front and 315/30ZR22 at the rear

The rims are normally gloss-black with golden accents, but you can specify different colors

If you ask nicely, MANHART will upgrade the brakes too

Unless the customer specifies additional upgrades, MANHART CRT 800 keeps the interior in factory condition

Swipe up to find out why the MANHART CRT 800 is a better buy than the Cayenne Turbo E Hybrid