1965 Mustang Espionage

The Spy Who Raced Me: Ringbrothers Build Custom 1965 All Carbon Fiber Widebody Fastback Mustang Espionage

Doing things differently has been hard-coded in Jim and Mike Ring’s DNA  and it is with that in mind that Ringbrothers undertook what is arguably one of their most ambitious and challenging projects ever – the all-carbon fiber 1965 widebody Mustang Fastback known as “Espionage.” The Bond-worthy car made its worldwide debut in the BASF booth at the 2015 SEMA Show in Las Vegas, surrounded by some of the most creative and interesting cars the automotive world has to offer.

Mike and Jim Ring aren’t strangers when it comes to working with carbon fiber as many of their builds have incorporated it to some degree. Last year’s SEMA standout, the 1966 “Recoil” Chevelle, used it extensively both functionally and aesthetically. Ringbrothers’ familiarity with the exotic material proved to be just the beginning of what has become a master class on carbon. The Rings didn’t just make a “carbon copy” of a ‘65 Fastback though, they took the iconic shape and widened it two inches on each side and made countless other small tweaks to the car that makes it uniquely Ringbrothers. The carbon fiber body work is incognito as the car is finished with the custom BASF Glasurit 90-Line Waterborne paint color aptly named “Spy Green.”

Such a magnificent car deserves only the best under the hood, so the folks at Wegner Motorsports pieced together a 427 cubic inch LS7 with a massive Whipple supercharger outputting 959 horsepower and 858 ft-lb of torque for “Espionage.” The beastly engine is bolted up to a six-speed Tremec T56 transmission, which is kept running smoothly by Royal Purple manual transmission fluid. A Centerforce DYAD Twin-Disc Clutch makes driving the powerful Mustang a breeze with smooth engagement and high-torque holding capacity. All 959 ponies are sent rearward through a custom driveshaft and into a Ford 9” rear end. Exhaust is expelled through headers with 2” primaries that were custom designed and built by Ringbrothers and into a fully custom exhaust system with Flowmaster Super 44 Mufflers.

On a car this fast, serious brakes are absolutely critical and as such, Mike and Jim turned to the folks at Baer who spec’d massive 14-inch discs and 6S calipers at each corner. Espionage wears custom forged wheels from HRE which are wrapped in Nitto Invo tires sized 295/35/18ZR in the front and 345/30/19ZR in the rear.

Ringbrothers Parts Used:

Billet Shifter Knob

Universal Billet Shift Bezel with Leather Boot

Stainless Steel Bolt and Washer Kits

Universal Round Billet Hood Pin Kit

Billet Clutch Reservoirs

Billet Hood Adjusters

Terminator Touch Start System

Universal Micro Hinge

Universal Billet Gas Cap

Clutch and Brake Pedal Kit

Universal Turn Indicator

Universal Battery Disconnect Switch

Body Mount Battery Charging Port

Pro-Touring Door Handle Kit

Pro-Touring Window Crank

Billet LS Modular Valve Cover Kit

Mustang Parts

1965-1966 Mustang Custom Carbon Fiber Widebody Kit

1965-1966 Mustang Billet Hood Hinge-Air Frame

1965-1966 Mustang Billet and Carbon Fiber Taillight Bezels

1965-1966 Mustang Fastback Billet Trunk Hinge-Air Frame

1965-1966 Mustang Export Brace

1965-1966 Mustang Billet Trunk Latch Striker

1965-1968 Mustang Billet Door Sill Plates

1965-1966 Mustang LED Taillight Panel Insert

Third Brake Light Bezel

Mustang Billet Door Handles


Vehicle Specs:


Engine: 427C.I. LS7 959HP 858 Torque

Forced Induction: Whipple 2.9L Supercharger

Engine Oil:   Royal Purple

Engine Oil Weight:   10-40W

Engine Extras: Wegner CNC ported LSA heads

Transmission: T56 Tremec 6 speed

Transmission Oil:  Royal Purple Manual Transmission Fluid

Rear End Manufacturer:  Detroit Speed

Rear End Type:   Ford 9”

Drive Shaft: QA1 Carbon Shaft

Differential Oil: Royal Purple

Differential Oil Weight:   75-90 W

Additional Details: Comp Cams camshaft, Callies Crankshaft



Type:  Rack and Pinion

Manufacturer:  Detroit Speed

Steering Column:  IDIDIT

Power Steering Fluid: Royal Purple Power Steering Fluid



Seats:  Recaro

Gauges: Race Pak IQ3

A/C System:  Vintage Air SureFit System


Stereo System



Wheels and Tires

Wheel Manufacturer/Model:  HRE

Front Wheel Size: 18” X 11”

Rear Wheel Size:   19” X 12”

Tire Manufacturer/Model: NITTO Invo

Front Tire Size:  295/35/18ZR

Rear Tire Size:   345/30/19ZR



Paint Manufacturer: Glasurit – 90 Line, a brand of BASF

Paint Color:  Spy Green

Paint Booth: Global Finishing Solutions Ringbrothers Performer Booth

Tail light lens:  Ringbrothers Machined



Fuel Type:  93 Octane Gas

Fuel Pump: Aeromotive

Fuel Tank/Cell: Aeromotive

Fuel Management: Aeromotive 

Fluids:  Royal Purple



Front Manufacturer: BAER

Front Caliper Specs: 6S 14” Extreme

Rear Manufacturer: BAER

Rear Caliper Specs: 6S 14” Extreme



Battery Location:  Trunk Mount

Battery Manufacturer:  OPTIMA



Header Manufacturer: Ringbrothers Built

Header Details:  2” primary tubes

Exhaust Manufacturer: Flowmaster mufflers and exhaust system



Radiator: AFCO Custom Built

Fans:  SPAL

Fluids:  Royal Purple



Chassis: Detroit Speed Components



Front Suspension Manufacturer:  Detroit Speed

Front Suspension Type: Mustang Aluma-Frame

Rear Suspension Manufacturer: Detroit Speed

Rear Suspension Type: Mustang QUADRALink

Shock Manufacturer: JRI

Sway Bars: Detroit Speed



Corporate Sponsors


Royal Purple



Product Sponsors




AM Hot Rod Glass

ARP Automotive Racing Products

Baer Brakes

Bowler Transmission



GFS – Global Finishing Solutions

Heat Shield Products


HRE Wheels

John’s Industries

Meziere Pumps

Miller Welding


Nitto Tires

OPTIMA Battery


Painless Wiring


Vintage Air

Wegner Motorsports Inc.

Ringbrothers Proud Sponsors:

  • 3M
  •  Hurst
  • Flowmaster
  • B&M
  • BASF
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  • Prestone