Tech Video: Heidts’ PRO-G IRS Makes This Firebird A Contender

Tech Video: Heidts' PRO-G IRS Makes This Firebird A Contender

Adding to their list of independent rear suspension kits, Heidts brings in a 1971 Pontiac Firebird Formula so we can see just how simple it is to bolt-in and IRS system without cutting or welding anything. Can it be

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