2006 Steeda Q525 Mustang: Ultimate Guide

One looks tells you this is a serious performance car

2006 Steeda Q525 Mustang

Light Weight & Top Performance

One looks tells you this is a serious performance car, with its new for 2006 light weight, competition front facia equipped with functional brake cooling ducts. These ducts feed cool air to the 14” Steeda front brakes of the Q 525. At the rear the new Steeda designed, engineered and manufactured rear sway bar with billet end links improves handling and rear compliance.

The heart of the Q 525 is a Magna Charger 5th Generation MP112 hybrid roots style supercharger with internal bypass valve. The supercharger provides instantantanious boost from 1,200 to 6,000 rpm. The unique valve is responsible in eliminating parasitic drag from the crank shaft to the supercharger.

The Eaton internal rotating assembly components are durability tested to OEM standards and are accepted by Ford Motor Company. The same assembly as used in the Cobra, Lightning and Jaguar XJR.

Working with Magnuson Products, Steeda engineers created an intercooled system as well as a specific tune for the Q 525, resulting in a very impressive 500 horsepower with 530 ft. lbs torque.

The suspension dynamics of the Q525 are in keeping with the Steeda Autosports tradition of designing, engineering and manufacturing quality suspension systems that are competition proven. In addition, they are constructed to strict Steeda quality standards and are precision engineered for both improved ride quality and the finest street and track performance.

What You Get

Engine Specs – (Hand Built)

  • 5.0 liter Modular
  • Steeda/Magna Charger supercharger system with intercooler
  • 62 mm twin -bore throttle body
  • Steeda/SCT air meter
  • 8.5:1 compression ratio
  • 500 horsepower @ 5400 RPM
  • 530 ft lbs @ 3650 RPM
  • Electronic Fuel injection with 60 lbs injectors
  • Steeda Cold Air Kit
  • Forged crank shaft
  • Forged connecting rods
  • Diamond forged pistons
  • Steeda axle back exhaust system

Suspension Specs

  • Steeda Sport Springs
  • Tokico D-Spec shocks and struts
  • Steeda camber adjusters
  • Steeda control arm relocation kit
  • Steeda bumpsteer kit
  • Steeda front adjustable endlink kit
  • Steeda G-Trac brace
  • Steeda billet strut tower brace
  • Steeda billet lower trailing arms
  • Steeda rear sway bar and billet end links
  • Steeda adjustable rear panhard bar with panhard bar brace
  • Steeda rear shock tower brace
  • Steeda 3 point frame rail and torque box brace


  • Steeda 14” four piston front brakes
  • Steeda 13” rear brakes

Wheels and Tires

  • Steeda Ultralite 06 18 x 9.5 alloy wheels
  • Goodyear Eagle F1 Supercar 275/40/ZR 18 performance tires


  • Steeda competition front facia with functional brake ducting
  • Steeda full cowl induction hood with hood pins
  • Steeda rear race wing
  • Steeda exterior graphics package
  • Steeda billet rear badge
  • Tri-Ax Shifter with billet shift handle
  • Steeda billet pedal cover set
  • Steeda billet dead pedal
  • Steeda billet A/C knobs and door handles
  • Billet speaker covers
  • Polished billet fuse box covers
  • Polished billet power steering cover
  • Polished billet oil cap
  • Polished billet brake fluid cover
  • Steeda custom floor mats

Price is estimated at $61,000

Specs & Performance

On BFG drag radials, the Q525 turned consistent 11.73 @ 117 mph quarter-mile runs at Steeda’s Media Day at Moroso Motorsports Park.

engine V8 w/Steeda Rods, Crank,Diamond Pistons,
position Front Longitudinal
aspiration MP112 Steeda/Magna Charger Supercharger System
valvetrain SOHC, 3 Valves per Cyl w/Varibale Camshaft Timing
fuel feed Electronic, Returnless & Sequential Ignition
displacement 4605 cc / 281 in³
bore 90.2 mm / 3.55 in
stroke 90.0 mm / 3.54 in
compression 8.5:1
power 372.9 kw / 500 bhp @ 5400 rpm
specific output 108.58 bhp per litre
bhp/weight 314.86 bhp per tonne
torque 718.58 nm / 530 ft lbs @ 3650 rpm
body / frame Unit Steel w/Aluminum Hood
driven wheels RWD
wheel type Steeda Ultralite
front tires Goodyear Eagle F1 Supercar 275/40 ZR18
rear tires Goodyear Eagle F1 Supercar 275/40 ZR18
front brakes Steeda Discs
f brake size x 356 mm / x 14 in
rear brakes Vented Discs w/Single-Piston Calipers, ABS
r brake size x 300 mm / x 11.8 in
front wheels F 45.7 x 24.1 cm / 18 x 9.5 in
rear wheels R 45.7 x 24.1 cm / 18 x 9.5 in
steering Rack & Pinion w/Power Assist
f suspension Tokico D-Spec shocks and struts
r suspension Tokico D-Spec shocks and struts
curb weight 1588 kg / 3500 lbs
wheelbase 2720 mm / 107.1 in
front track 1582 mm / 62.3 in
rear track 1588 mm / 62.5 in
length 4775 mm / 188.0 in
width 1877 mm / 73.9 in
height 1407 mm / 55.4 in
transmission Tremec 3650 5-Speed Manual or Automatic
gear ratios 3.34:1, 2.00:1, 1.32:1, 1.00:1, .067:1, :1
final drive 3.55:1