1966-72 Pontiac GTO, Lemans, Tempest V8 Dual Exhaust with Ram Air or High Output Manifolds

1966-72 Pontiac GTO, Lemans, Tempest V8 Dual Exhaust with Ram Air or High Output Manifolds


This listing covers MY’s 1966, 1967, 1968, & 1969 Pontiac Custom, GTO, Lemans, & Tempest with Ram Air or High Output, 1970 models with Ram Air, and 1971-72 models with High Output. If your MY 1966, 1967, or 1969 was stock with 4 mufflers, refer to listing 453477. For systems w/o RA or HO, refer to listing 453210.

Photo depicts the stock dual exhaust system for 1967 Pontiac Lemans, Tempest, and Custom with RA or HO manifolds on the stock 400ci V8 & standard transmission (this is a resonator eliminator system for 1967 GTO’s with RA or HO & STD trans). 

  • This dual exhaust system consists of the LS/RS exhaust pipes, LS/RS mufflers, and LS/RS tailpipes.
  • This system starts out at 2¼”OD on the exhaust pipes which reduce to 2″OD at the muffler inlets and then increases to 2¼” OD at the tailpipes.
  • For MY’s 1970-72, this system does not include the chrome tips but will be designed to fit up to the stock tip design.
  •  If the cast iron flanges are needed, add them to your cart for an additional $45.00.
  • Metal-to-metal connection at the manifolds. Gaskets are not required.
    The OEM flanges for this system are cast iron and will be needed in advance of our building your system. Please mail them to: Waldron's Exhaust PO Box 99 208 W. Main St. Centreville MI 49032 If you do not have a set of OE cast iron flanges, you may purchase a set of from Waldron's for an additional $45.00.
  • All mufflers are built to the OEM specs. Our Mild Impostor's and Impostors allow you to keep your vehicle stock while changing your exhaust notes. Our Mild Impostor is a middle of the road turbo muffler, designed to give your exhaust a deeper, throatier tone. Our Impostor is a high performance, aggressive turbo muffler.
  • Price: $115.00
    Set of 4 OEM style hangers with OEM style rear tailpipe clamps.
  • Price: $4.00
  • Price: $11.00
  • Price: $10.00
  • $0.00


  • Our exhaust systems are made to order. For our current lead time, please refer to the gray banner above.
  • For orders shipping within the 48 USA contiguous states, the shipping charges will calculate correctly. For orders shipping outside the 48 USA contiguous states, please submit your order without payment, we will get in touch with you with your shipping options and get your order completed.
  • The following statement pertains to pipes only (mufflers have a 1 year warranty regardless of material chosen) and to vehicles that are not daily drivers and are stored in an enclosed building: Aluminized Steel has a life expectancy of 20-25 years and is considered to be truer to the original material on vintage vehicles. T409 Stainless Steel is ferric and magnets will stick to it. T409 stainless steel is the same type of stainless used by car manufactures today and will never rust through, although it may develop pock-marks of rust which can simply be buffed out.
  • When building our exhaust systems; where (or if) it requires a pipe diameter of 2” or larger, it will be 14-gauge tubing, where (or if) it requires a pipe diameter smaller than 2”, it will be 16-gauge tubing.
  • Check out our On-line Swap Meet for both aftermarket and OEM (some) H pipes and Y pipes, along with “odd ball” mufflers.

SKU 453475

Additional information


Aluminized Steel, T409 Stainless Steel

Shipping Options

With Pipes Full Length, With Pipes Cut


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