BSM Exhaust Works now offers complete performance exhaust systems, separate pipes and stock exhaust hangers for all 58-72 Impalas. Our systems and pipes are offered in aluminized steel and in stainless steel with your choice of turbo or Flowmaster mufflers or no mufflers at all. These pipes are 2.5" mandrel bend but fit like factory pipes in the factory locations and made for 2" and 2.5" factory stock manifolds. These products are currently phone order only. Call 978 454 0311 or e-mail for info. Thanks