5. IRS: Less Unsprung Weight & NVH with Milder Aftermarket Upgrades
By having a differential that’s not literally connected to the rear wheels, an independent rear suspension reduces unsprung weight. So even though it might be literally heavier pound for pound (the whole Mustang will have more mass), it may feel lighter in many scenarios. Plus, while an IRS will require modifications to launch as hard as a solid rear axle — subframes introduce more places where things flex, causing unwanted wheel hop — you can improve an IRS with kits like the Steeda Stop The Hop Kit without as much Noise, Vibrations, and Harshness (NVH). In other words, the IRS is going to transfer fewer vibrations into the car.
Michael S. Palmer began his career assisting and developing content for Academy Award-winning and studio-based film and television producers. He has been a professional writer since 2008, when he joined the Writers Guild of America West (WGAw). As a journalist and Content Editor/Manager, he has covered numerous emerging imaging, theatrical exhibition, home entertainment, and automotive technologies. He currently spends his days creating original content at the Internet Brands Automotive Group for some of the world's largest online automotive communities, including Ford Truck Enthusiasts, CorvetteForum, ClubLexus, AudiWorld, and LS1Tech. He still owns his first car, a 1987 Mercury Cougar; adores driving his Boss 302 Mustang; and recently teamed with Chevrolet Performance, Holley, Magnaflow, Eaton, Wilwood, Michelin, Chemical Guys, Summit Racing to build his first project car. Installing an LS3 E-ROD Connect & Cruise system into a 1992 Buick Roadmaster Estate Wagon made his eight-passenger wagon faster than a C5 Corvette to 60mph and 50 state emissions legal. His wife and daughter are very patient.
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