Name: 1968-74 Mercury Cougar 302ci, 351ci, 390ci, 427ci, 428, &amp; 429ci, 460ci V8 Dual Exhaust
SKU: 454478
Availability: InStock
Rating: 5.00 (1 reviews)

1968-74 Mercury Cougar 302ci, 351ci, 390ci, 427ci, 428, & 429ci, 460ci V8 Dual Exhaust

Price range: $926.25 through $1,621.25

Rated 5.00 out of 5 based on 1 customer rating

(1 customer review)

This listing covers MY’s 1968, 1969, 1970, 1971, 1972, 1973 and 1974 Mercury Cougar’s & GT’s with their respective stock V8: 302ci, 390ci, 427ci, 428ci, 351ci, 429ci, or 460ci.

Photo depicts the system for a 1969 Cougar with the stock 351W.

For MY’s 1968-73: This dual exhaust system consists of the H pipe, LS/RS rear exhaust pipes, LS/RS mufflers, and LS/RS tailpipes. H pipe may be NORS.
For MY 1974: This dual exhaust consists of the H pipe, LS/RS mufflers, and LS/RS tailpipes.

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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.

Gasket

Price: $5.00

Steel U-Bolt Clamp

Price: $4.00

Stainless Steel U-Bolt Clamp

Price: $11.00

Universal Hangers

Price: $10.00

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SKU: 454478 Categories: 1967-88 Mercury Cougar, Complete Systems for Cars, Mercury

Description

Our exhaust systems are made to order. For our current lead time, please refer to the red 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.

454478

Additional information

Material	Aluminized Steel, T409 Stainless Steel
Shipping Options	With Pipes Full Length, With Pipes Cut

1 review for 1968-74 Mercury Cougar 302ci, 351ci, 390ci, 427ci, 428, & 429ci, 460ci V8 Dual Exhaust

Rated 5 out of 5

Ruth – April 20, 2026

On 9-21-2025 Mike from Ontario reported how happy he is with the dual exhaust with Mild Impostor mufflers we built for his 1969 Mercury Cougar XR7 with the stock 351W “The fit was excellent and it sounds awesome… very happy.”

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