Roush 670 hp Stage 3 Mustang is a Banger!

May 8, 2015

The RS3’s supercharged 5.0-liter Coyote V8 looks like it will be in excess of 630 horsepower. Roush was being rather coy with that figure, revealing today that the RS3 pumps out no less than 670 HP at its 6800-rpm redline. Thats some serious shit. Lets not forget the 545 lb-ft of torque arriving at 5000 revs, all courtesy of Roush’s 2.3-liter TVR supercharger. The RS3 is a smidge hotter than the 625-horse Petty’s Garage Mustang, which is also available for order at Ford dealers.

Photo: Roush

The ponies are not the Stage 3’s only trick. Underneath, we get to see features like a front splitter, a hood scoop, a rear deck spoiler, high-flow grille openings, rocker-panel extensions, and a revised rear fascia. Jutting out behind are quad tips hooked up to Roush’s new Active Performance exhaust system, which offers four noise settings. Touring, Sport, and Track settings ramp up the volume as one might expect.

Photo: Roush

Even better is that the Roush Stage 3 is now available for order at your local Roush emporium at around $55,000!

Photo: Roush

1970 Charger Showdown: Classic RT/SE Hemi vs. RestoMod Hemi

June 23, 2025

When it comes to American muscle, few cars have captured the hearts of enthusiasts and dominated the silver screen like the Dodge Charger. From…
Read more
The RM30 1970 HEMI Dodge Charger RestoMod

April 22, 2025

The 1970 Dodge Charger is one of the most iconic silhouettes in American muscle car history and RM30 takes that legacy to the next level.…
Read more
RestoMods Garage Update

February 11, 2025

1967 Chevrolet Chevelle (Ground Up Restoration) The 1967 Chevelle 427 is coming together, now sitting on a Roadster Shop chassis that completely transforms its handling…
Read more

Show more articles

Become a Car Club Member

Car Club Members Get Entries to Win, Discounts in our Shop, Discounts with our Preferred Partners and more!

Membership benefits

By joining the RestoMods Car Club Today, you will receive amazing perks plus 15 bonus entries into our sweepstakes for every month you are an active member

Auto Discounts:Curated Discounts From Your Favorite Parts Companies
Restomods Monthly:Monthly Magazine With The Latest Industry News
Classified Ads:Get Free Postings seen by 300,000 enthusiasts monthly
Car Show Tickets:Check out the biggest vintage car shows on us.
Exclusive Car Deals:First chance to purchase any prize cars not selected