• Brightmare – Battle at the Beach

  • Brightmare- Street Car Takeover ’17

  • Brightmare at Streetcar Takeover – Charlotte

  • Brightmare engine with 6r80

  • Winner at Streetcar Takeover Charlotte

  • KOTS

  • Steve with Brightmare MW16

  • Mod Nationals 1 Brightmare

  • Mod Nationals 1 Brightmare 2

  • Brightmare on Pass Time

  • Streetcar Takeover Charlotte 17- Brightmare

  • BrightMare burnout MW12

Meet Steve Shrader’s BrightMare

This yellow ’99 Mustang GT, nicknamed “BrightMare”, was the car that started it all for the Yellow Mustang Registry back in 2002 when we founded the club (which is now under new ownership but still runs strong). We use this car to test new engine combinations for our business and continually push the power limits on E85 Ethanol. We are currently working with something never before done, and mating a 6r80 auto trans from a 13-14 Mustang to be mated with the 4.6L 2v engine. This requires a complete new wiring and PCM setup to control everything and is finally complete.

We recently sponsored the Mod Nationals race, and had some great success with this car. Running a best of 9.33 at 149 mph in the 1/4, and a 5.90 at 120 in the 1/8, it showed we’re finally getting closer to our goals with this combo.

We recently drove the car to the Mustang Week Battle of the Beach contest in 2016, and was the only 2v competing against some big displacement, big boosted Mustangs. Check out MM&FF magazine for the complete results of that contest.

In the Streetcar Takeover event at zMax Dragway in 2016, Brightmare took home the winner’s trophy in the LS vs. Modular class, running mid 9’s on a very conservative tune.

The car competed in 5.0 Mustang Magazine’s King of the Street competition for 2012, running a 9.86 at 146 and wowwing the judges with its street car manners and gobs of torque in the Ride and Drive segment. Read the May 2013 issue of 5.0 Magazine for the full details.

BrightMare made an appearance on Speed Channel’s show Pass Time in ’09. It surprised everyone when the car went significantly faster than expected. Click here for the video. That was an old combo with a smaller engine and supercharger.

We now offer a 6r80 Swap Guide available for purchase in our store! Convert your 99-04 Mustang over to a 6r80 6-speed automatic.

Engine Built by Shrader Performance

The Numbers

  • Horsepower without nitrous: 892 rwhp
  • 1/8 mile: 5.90 at 120 mph
  • 1/4 mile: 9.33 at 149


  • Shortblock: Shrader 1200XX stroker
  • Cubic Inches: 323ci

Top End/Other Engine

  • Heads: Trickflow 195 Race heads
  • Cams: You didn’t think we would give you the best kept secret, did you?
  • Intake: Edelbrock Victor Jr
  • Intake Plenum: custom aluminum Shrader plenum
  • ThrottleBody: OEM 2014 Mustang GT
  • Water Pump: Electric
  • PCM: 2014 GT paired with stock 99 GT ECU

Forced Induction

  • Blower: Vortech YSi at 21 psi
  • Crank Pulley: Innovators West 10% Overdrive
  • Intercooler: custom air-to-air


  • Headers: American Racing Headers longtubes
  • Mid-pipe: ARH shorty
  • Cat-Back: custom cat-back w/Flowmaster mufflers

Fuel System

  • Fuel Tank: 03 Cobra tank
  • Fuel Pump: Triple E85 Walbro pumps in Fore module
  • Fuel Injectors: ID1300
  • Fuel Type: E-85 Ethanol


  • SCT X4 with custom tuning by Steve Shrader


  • Converter: custom spec Circle D
  • Transmission: 6r80 Auto w/ stage2 Exedy clutches
  • Driveshaft: custom aluminum
  • Axles: Moser 31-spline