RENNtech E63 Sport Mufflers for 2014 E63 Now Available

March 24th, 2014

RENNtech T-304 stainless steel (SS) sport mufflers are hand made and rigorously tested to remove any unwanted resonances in the cabin to deliver a deep sound that keeps with the character of a luxury performance vehicle.

For more info and pricing click here:


Join us on track March 15th @ PBIR

March 13th, 2014

January 9th, 2014



Join RENNtech @ Supercar Week

For an even schedule visit



Supporters Include Sebring International Raceway, RENNtech, McLaren and the Ferretti Group

Jan. 8, 2014 / West Palm Beach, FL – Supercar Week presented by Palm Beach International Raceway – already in progress and continuing until the Supercar Supershow on Sunday at the downtown waterfront — is already the largest and most influential collection of automotive happenings in South Florida, and the scope of the event continues to grow with the addition of new sponsors and unique participants. 

The legendary Sebring International Raceway, which will host America’s oldest and most prestigious sports car endurance race — the 62nd Annual Mobil 1 Twelve Hours of Sebring Fueled by “Fresh from Florida” March 12-15, 2014 — has joined the ranks of event sponsors and will have a display during the SuperCar SuperShow Grand Finale event on the West Palm Beach waterfront (Sunday, January 12) featuring the Corvette C7 Stingray pace car that will lead the field for the start of legendary endurance race.

“We are pleased to be associated with SuperCar Week,” stated Sebring President and General manager Tres Stephenson. “This event is an auto enthusiast’s paradise and we welcome the opportunity to be a supporting sponsor.”

Established in 1989 by Harmut Feyhl, RENNtech is currently celebrating its 25th anniversary as the foremost authority on high-performance products for virtually all Mercedes-Benz models.  The company has broadened its expertise to include a broad spectrum of luxury automobile performance tuning – including Porsche, VW, Audi and Bentley, and with this growth, Lake Park-based RENNtech has increased its annual involvement with Supercar Week with an expanded display of high-performance luxury cars.

“As a high-performance company doing business locally, nationally and internationally, Supercar Week is a major part of our marketing and public relations effort,” says Feyhl.  “The high-performance community is a close-knit and I’m amazed every year by the business we generate in unlikely places, from Europe to Utah, as a result of our participation in Supercar Week.”

The Ferretti Group is a world leader in designing, building and marketing luxury motoryachts,  with a unique portfolio of some of the most exclusive and prestigious brands in the world including: Ferretti, Pershing, Itama, Bertram, Riva, Mochi Craft, and CRN.  With a newly-opened boutique showroom at 125 Worth Avenue housing a $1 million Aquariva Super, Ferretti will be exhibiting two upscale yachts, a 54-ft. Mochi Craft and a 64-ft. Pershing, at the downtown docks on Flagler Drive during Supercar Sunday, Jan. 12.

“Supercar Week is a good fit for us because we share the same clientele; car guys are often also boat guys,” says sales executive Scott Weiland.  “This is an experiment for us, but it’s no secret that devotees of high performance exotic sports cars often have a high-performance motor yacht moored somewhere nearby.  And if someone is interested in the aquatic equivalent of a Lamborghini or Ferrari, our Worth Avenue showroom is just a few minutes from the waterfront action on Sunday’s Supercar Supershow.”

The Supercar Supershow, the world’s largest outdoor display of exotic and high-performance cars, will feature no less than three McLaren MP4-12Cs, thanks to the participation of Tampa Bay-area dealer the Dimmit Group, which also sells Aston Martin, Bentley, Cadillac, Land Rover, Roll-Royce and Volvo vehicles.  The 12C is an ultra-high performance sports car designed and manufactured by McLaren Automotive, the street car division of the famed Formula One team. 

The MP4-12C features a carbon fiber composite chassis, and is powered by a mid-mounted twin-turbocharged V-8 engine producing 616 horsepower.  The car will accelerate from 0 to 60 mph in 2.9 seconds and has a top speed of 207 miles per hour.

These are the kind of performance numbers you would typically see from a race car, and Supercar Sunday will have plenty of those, including several cars from Riviera Beach-based Orbit Racing.  Specializing in all-things Porsche, from maintenance and performance upgrades to street-legal cars, Orbit is also runs a top team of Porsche factory GT racing cars and won the pole for their class in the 2012 24 Hours of Daytona.

Another race team/street car combination is Pettit Racing and RevOmax lubricants, who will team up to auction off a customized, twin-turbo Mazda RX-7 built by Petit Racing, with part of the profits going to the late Paul Walker’s “Reach Out Worldwide” foundation.  The car is a street legal race car with custom bodywork, suspension and interior and performance modifications that give it a top speed of 170 mph.

RevOmax USA is a new, green lubricants company born from a passion for racing and improving things down to the smallest details. Founded by Excellent Performance Inc. and Ambertech Global, RevOmax USA is strategically positioned to become a leader in the automotive, marine, racing & powersports industries by specializing in environmentally friendly biolubricant technologies.

Over the past 25 years, Pettit Racing has become the premier source for quality parts and accessories for Mazda RX7, RX8 and most rotary powered vehicles.  Pettit Racing has dealer locations worldwide with offices & facilities in the US & UK.  The main U.S. facility is located in Palm Beach and houses the R&D, new product development, and a complete race car fabrication shop.

“I’m delighted, but not totally surprised by the growth we’re experiencing this year,” says Neil London, President and Executive Producer of Supercar Week, Inc. and Managing Director of ICTV1 Networks.  “This is one of the most high-profile and influential automotive enthusiast events in South Florida and word is getting around that we present a great marketing and promotional platform for a wide variety of companies, not just in the automotive industry, but also for luxury, style and art.  And our sponsors, participants and fans are not just local, but come from around the country and around the world, giving us all the elements we need to continue expanding and become a major automotive destination event.”

Held annually January 4 – 12 at various locations around Palm Beach County, Supercar Week presented by PBIR includes private VIP and public parties, opening day of the Polo Season at the International Polo Club Palm Beach in Wellington, a Track Day event at Palm Beach International Raceway, Supercar at The Gardens in Palm Beach Gardens, Media Day, Supercar at The Norton Museum of Art, Supercar Auction America, an art auction of significant exotics, classics and specialty vehicles and an art exhibition, this year entitled “The History of Formula 1,” and the grand finale Supercar SuperShow, held Sunday January 12th on the West Palm Beach Waterfront.

More than 50,000 people and 600 cars are expected for the 2014 Supercar Week presented by PBIR and Sunday’s Supercar Supershow, including supercars, race cars, classics, muscle cars, high performance sports cars, electric and ‘green’ cars and art cars.



Holiday Savings- Now through January 3rd, 2014

December 3rd, 2013

RENNtech C63 Black Series Dyno Pull

November 12th, 2013

C63 Black Series featuring RENNtech ECU tune, exhaust, and headers on the dyno.

This vehicle put down an impressive 568 HP and 647 NM.

Video courtesy RENNtech Engineering in Germany.

RENNtech @ SEMA 2013

November 1st, 2013

Come check out the C74 at SEMA next week! The car will be located at the Sicom Brakes booth in the Central Hall.

The British are lowered! The British are lowered! Land Rover lowering modules available now!

August 8th, 2013

We are pleased to offer our new V3 Digital Suspension Lowering Modules available for the following Land Rover models:

2010+ Land Rover LR4

2010+ Range Rover

2010+ Range Rover Sport

These units function just as our top selling Mercedes modules and offer four corner height adjustability in 1mm increments. Our new Land Rover DLM is also Android OS tablet compatible.

RENNtech V3 DLM Module Specifications:

  • Current Consumption: 30mA (60mA while plugged in to PC/Tablet)
  • Adjustment increments: 1mm
  • Maximum Lowering: Limited only by vehicle
  • Adjustment Methods: PC or Android (Tablet)
  • Size: 53mm x 73mm x 24mm
  • Weight: 1.2oz
  • Price- $1395.00

To view the product page, select you model by clicking here:

RENNtech Engineering GmbH now open

August 7th, 2013

RENNtech is pleased to announce the opening of our European research and development center in Germany. Located just outside of the famed Nürburgring race track in Mendig, Germany; RENNtech Engineering GmbH will serve as a development and testing center for new products and allow greater expansion into European markets through a wider product range specific to European only models such as A and B class in addition to the entire Mercedes product line. As a direct arm, RENNtech Engineering GmbH also grants access to new models months before they are released overseas allowing us to bring products for new models to market quicker.

As a further testament to our quality standards, our European branch will obtain TÜV certification for our street legal product line. Our latest M157 biturbo upgrade for the new 63 series as well as our 200 cell sport cat downpipes have already achieved TÜV certification with many more certified products on the way.

What is TÜV certification and why is it important? Basically, German registered road vehicle may not operate on public roads with modifications that do not meet strict quality standards put in place by TÜV. Testing of material construction, temperature and corrosion resistance, emissions and material analysis are just a few tests products must undergo to obtain this certification. All this ensures when you purchase a RENNtech upgrade you get exactly what we say; performance without compromise.

RENNtech Engineering GmbH is located at:

Robert-Bosch-Str. 30

56743 Mendig


+49 (0) 261 973263-61

+49 (0) 261 / 973263-62

Mon-Sat: By appointment only

OFFICIAL LAUNCH: RENNtech Deep Monolite wheels by ADV.1

August 2nd, 2013



RENNtech and ADV.1 set out to develop the Deep Monolite wheel program with an objective to create a product that features the perfect blend of high performance specifications along with quality and durability that surpasses OEM standards.

These are not your typical aftermarket wheels given that each set is designed and weight optimized specifically for each application.  Countless hours of testing and development were essential to produce the lightest, strongest, and highest quality wheels available for Mercedes-Benz and AMG vehicles.  Experience the assurance of unparalleled service, warranty, and reliability from RENNtech.

RENNtech Monolite 16, Luxurious and meticulously detailed

RENNtech Monolite 10, Our signature design that personifies performance and luxury

RENNtech Deep Monolite 10.2, Motorsport inspired lightweight design


-Exclusive CNC machined RENNtech center cap design

-“RENNtech” logo and “Forged” machined in adjacent spoke windows

-Utilize OEM lug bolts for most applications

-Titanium lug bolts are optional.  Lightweight, high strength perfection

The program features three distinctive designs which are available in either brushed aluminum (standard) or brushed gunmetal (optional).

To view the more images of our wheels click here:


These wheels are in stock and ready to ship for most late model Mercedes-Benz and AMG vehicles.

Please call RENNtech for more information at 561.845.7888




RENNtech CLS 550 Biturbo (C218) on the Dyno

May 8th, 2013

RENNtech modified CLS 550 biturbo (C218) on the dyno for a performance pull and top speed run featuring our latest 550 upgrades for the CLS.

For more info on our CLS 550 BT products click here: