1964-74 Pontiac GTO / Lemans / Tempest / Grand Prix V8 (Exc. Ram Air or HO) Dual Exhaust w/2 Mufflers

1964-74 Pontiac GTO / Lemans / Tempest / Grand Prix V8 (Exc. Ram Air or HO) Dual Exhaust w/2 Mufflers


This listing covers model years 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, and 1974 Tempest (up through 1970), Lemans, Grand Prix, Grand Am (beginning in 1972) and GTO’s with the stock V8 and dual exhaust stock with 2 mufflers. Excludes MY’s 1966-72 with Ram Air or High Output, for those systems please refer to listing 453475.

Photo depicts the system for a 1974 Pontiac Grand Prix with a 455ci V8. 

  • Dual exhaust system consists of the LS/RS exhaust pipes, LS/RS mufflers, and LS/RS tailpipes.
  • 1964 & 1965 models have options regarding the tailpipes. In the check out process you will be asked to report your desired exit; out the back (toward the bumper) or exit out behind the rear wheels (designed to fit up to the split chrome tips that we do not offer).
  • For MY’s 1970-74; this system does not include the chrome tips. We suggest you contact Ames Performance Engineering.


  • 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: 453210

Additional information


Aluminized Steel, T409 Stainless Steel

Shipping Options

With Pipes Full Length, With Pipes Cut


Go to Top