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2013 BMW M3 Coupe - M-Fatuated

The story of a new roots-type supercharger development, and an M enthusiast mourns his vehicular loss with the birth of a very special E92 M3

Alex Bernstein
Oct 16, 2013

Matthew Stellas is M obsessed. He runs his own blog at, chronicling his love for M cars and serving as an outlet for his automotive passion. While anybody can admit that, at one time or another, they've loved an M3, Matthew's story is quite unique.

Residing on the New Jersey coast in Barnegat Bay, Matthew's house has an ocean view in a quiet bay community. Unfortunately, this placed him in the direct line of superstorm Hurricane Sandy. So on October 25, 2012, many lives, homes and neighborhoods were destroyed. And among the devastation was the loss of Matthew's pair of BMW M3s: a '99 Estoril Blue E36 and a '11 Alpine White E92.

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Both cars were a total loss, forcing Matthew to consider other options. "After experiencing the crushing torque of the Nissan GT-R twin-turbo, I didn't think I could return to BMW in the foreseeable future," he said. "I was considering the GT-R or a 997 Porsche Turbo, but finally came to the realization that neither was right for me. I decided that a force-fed S65B40 [M3 V8] would be more appropriate."

2013 BMW m3 coupe vorsteiner vorsteiner GTS V front lip 06 Photo 2/8   |   2013 BMW M3 Coupe Vorsteiner Vorsteiner GTS V Front Lip 06

With that epiphany, Matthew bought his E36 back from the insurance company to restore it, but ordered a 2013 M3 in Santorini Blue from BMW Individual with European delivery.

The special blue paint is both rare and stunning. So rare, in fact, that Matthew's M3 is one of only nine coupes in the US. It's loud, but pulls off the hue with class, especially when paired with painted and anodized gold BBS Motorsport E88 wheels. It also has the right stance thanks to a KW Sleeve-over Kit that combines height-adjustable lowering springs with the stock M3 dampers. In fact, this might be one of the most beautiful E92 M3s we've encountered.

The wheels and performance parts were all supplied by Eric Nareshni at Supreme Power Parts (SPP) in Placentia, CA. He also sourced the carbon fiber Vorsteiner GTS-V front splitter and Type II rear diffuser plus a BMW M Performance carbon front spoiler (which was given a Santorini stripe by IND Distribution),

Some ten years ago, Eric supplied parts to Matthew for a previous car and the pair have worked on projects ever since. So Eric also ordered gloss-black hood vents, kidney grilles, side gills and painted reflector deletes from IND Distribution to complete the exterior makeover.

2013 BMW m3 coupe vorsteiner type II rear diffuser 05 Photo 3/8   |   2013 BMW M3 Coupe - M-Fatuated

After a few moments walking around this stunning car, you begin to wonder if it could possibly pack enough muscle to back up its brutal looks. And that's where things get interesting.

A company called Harrop produces supercharger kits using Eaton Twin Vortices Series (TVS) superchargers, as seen on cars like the Corvette ZR1 and Audi S4 3.0T. Based in Australia, the Harrop systems are far removed from what you've seen before in E9X M3 engine bays.

While Roots-type blowers were used on older BMW models, all the competitors are currently using centrifugal superchargers such as Vortech or Rotrex units on the M3's 4.0L V8.

The centrifugal units work by building boost with engine speed, providing a big power increase in a linear fashion that mimics the stock engine character. Whereas a Roots-style, positive displacement supercharger has the potential for instantaneous, tire-shredding torque. This can give the M3 V8 a characteristic it never had before: low-end grunt. And the torque is available throughout the power band.

Contacting Harrop, Eric decided to be one of the first to install the new blower system on an E92 M3. And knowing Matthew wanted forced induction, he proposed they build this unique machine. So after reaching an agreement, Matt's car was the first M3 in the world to run the Harrop kit.

Like any new power-adder, tuning is crucial and this system still needs fine-tuning for US fuel and temperatures. But even in its unfinished state, we can tell you the car felt anxious to accelerate.

2013 BMW m3 coupe BMW performance alcantara steering wheel 03 Photo 4/8   |   2013 BMW M3 Coupe - M-Fatuated

The surge of boost and onset of torque, paired with near-silent operation, brings uneasiness in the pit of your stomach. You know something incredible is about to happen but you dare not unleash it... yet!

Once Harrop has finalized the tune, Matthew's car is expected to make competitive horsepower numbers, but with more torque, lower in the powerband than the competition. The coming months will tell and we hope to have dyno numbers very soon.

Once tuned and performing to its full potential, Matthew's M3 is ready to go and stop. A full Brembo GT kit shines from behind the 19" BBS. The set-up utilized six-piston monoblock front calipers and four-piston rears with 380mm drilled rotors all round.

Inside, Matthew chose to keep things simple. "I love the stock seats but I'm tempted to try Recaros in there," he told us. But for now, all he added was a flat-bottomed BMW M Performance steering wheel - another modification we can get behind.

With only 900 miles on the clock, Matthew is excited to ship his M3 back to the Jersey Shore so he can finally enjoy his creation. Stay tuned for updates on power figures and burnouts!

2013 BMW M3 Coupe

Matthew Stellas
Barnegat Bay, NJ

Engine 4.0-liter V8 32v with Roots-type Harrop twin-screw supercharger kit, AE Performance exhaust X-pipe with HJS metallic cats, Vanguard Performance titanium muffler

Drivetrain seven-speed M-DCT automatic transmission

Brakes Brembo six-piston monoblock calipers f, four-piston r, 380mm rotors f&r

2013 BMW m3 coupe harrop twin screw supercharger 08 Photo 8/8   |   2013 BMW M3 Coupe - M-Fatuated

Suspension KW Sleeve-over Kit with springs and adjustable perches

Wheels & Tires 19x9.5" f, 19x11" r BBS Motorsport E88 wheels with gold painted centers, anodized gold outer and black inner rims, red caps, 255/35 R19 f, 295/30 R19 r Michelin Pilot Super Sport tires

Exterior Vorsteiner GTS-V carbon fiber front lip and Type II rear diffuser, BMW M Performance carbon fiber front spoiler, IND Distribution gloss black hood vents, kidney grilles, side gills and painted reflector deletes

Interior BMW Performance flat-bottom alcantara steering wheel

Contact Supreme Power Parts (

By Alex Bernstein
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