Roushcharger: New Stage 3 Mustang

Mustang fanatics with an extra $20,225 (plus shipping and handling and installation; void where prohibited) in their fanny packs can turn a stock GT into a 415 hp monster (that's about $176 per horsepower over the GT's stock 300) with a few choice mods from the boys at Roush. It's by way of the Roush Stage 3 kit, the centerpiece of which is its engine-boost components including "ROUSHcharger" kompressor and intercooler, plus new intake manifolds and air induction system, topped off with a recalibrated ECM. But it's not just about sheer horsepower. The kit also comes with suspension components, brakes, an aero kit, 18" chrome wheels and appointments like leather sport seats, billet shift handle and windshield banner. It also comes in convertible, though racing stripes are an extra $530. Click through for specs.

Core components of the Roush Stage 3 kit:

ROUSHcharged 4.6L powertrain system (Additional components include ROUSHcharger, intake manifolds, intercooler & radiator, air induction system, ROUSH calibrated ECM and many others) Produces 415hp / 385lb-ft
ROUSH 7 Piece Aerobody Kit (Front Fascia, Front Chin Spoiler, Hood Scoop, Rocker Panels, Rear Fascia Valance and Rear Wing)
Lower Valance Fog Lamps
ROUSH 18-Inch Forged Chrome Wheel & with Ultra-High Performance Tires
ROUSH Rear Exit High Performance Exhaust w/ Chromed Tips
ROUSH Fender Badges
ROUSH Decklid Emblem
ROUSH Embroidered Floor Mats
ROUSH Front Windshield Banner
ROUSH Billet Aluminum Shifter Handle
ROUSH Pedals w/ Dead Pedal (CNC Billet Aluminum)
ROUSH Stage 3 White Face Gauge Cluster (Electro luminescent)
ROUSH Stage 3 Sport Leather Seating
ROUSH Suspension System (includes: Front Struts, Rear Shocks, Front and Rear Springs, Front Sway Bar and Rear Sway Bar, and Pinion Snubbers)
ROUSH Brake Kit w/ 14" Front 2-Piece Rotors and 4-Piston Calipers)
ROUSH Serialized Engine Bay Plaque

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Related:
Roush Introduces Euro-Spec Performance Mustang [internal]