Skip to main content
Welcome to the NEW WCCC Cougar Parts Catalog
(Click here to tell us what you think)
Our warehouse is closed for New Years Jan 1-4th.
Orders placed after 12PM PST on Tuesday 12/30/2025 may not ship until Monday (1/5/2026).
International Customers Click Here [Updated 6/2025]
true
1 Review(s)

Dual Exhaust System - 390 / 427 - OEM Style / Performance - Repro ~ 1967 - 1968 Mercury Cougar

Item #: 27401
Cost: 52608
Earns: 2631
Bonus: 0

Reproduction Factory Style 390 / 427-4V Dual Exhaust Kit for 1967 1968 Mercury Cougar


Price: $657.60
    The product is in stock Availability*: Ships Direct from Supplier (Except International)
    Usually leaves warehouse: Ships from Supplier Warehouse in 3-10 Business Days
    EXCEPT AS NOTED IN THE PRODUCT DESCRIPTION
    International Orders: This item will ship from the supplier to our warehouse before shipping to your address, add 7-10 Days
    Ships Direct from Supplier (Except International) - Ships in: Ships from Supplier Warehouse in 3-10 Business Days
    EXCEPT AS NOTED IN THE PRODUCT DESCRIPTION
    International Orders: This item will ship from the supplier to our warehouse before shipping to your address, add 7-10 Days

    This oversized 2-1/4 inch dual exhaust system is manufactured right here in the good old USA from original 1967-68 Cougars equipped with the 390 or 427 engine. This direct replacement system includes: 1 H pipe, 2 intermediate pipes, 2 mufflers, and a right and left tail pipe. The system is constructed from 2-1/4 inch aluminized piping and features blue printed bends with everything being replicated as close as possible to the original. The mufflers in the system have the hanging tabs attached so that they will accept original muffler hangers. H pipes are constructed for use with original stock cast iron exhaust manifolds with the passenger side spacer. H pipes can also be purchased separately.

    *NOTE* This dual exhaust system has a larger diameter than the original Ford system and will increase performance, but it may also increase the engine sound that you hear inside your car. This item ships in sections and is meant to be welded and or clamped together. The H pipes were clamped on the original systems. Kits do not include pipe clamps, hangers, or exhaust manifold donuts.

    Please allow 4 - 6 weeks for delivery.

    Shipping Weight:
    120.00 LBS
    (weight shown may be the dimensional weight)
    Shipping Dimensions:
    Number of questions: 1
    0 0
    Hi: I have a 1968 Cougar XR7 4V GT. Can I install this system without rework since it is 2 1/4 inch? Also what type and number of pipe clamps, hangers and exhaust manifold donuts do I need? Do I need to buy exhaust gaskets? or anything else to install? Thanks for advising. Stephane Johnson
    May 12, 2022 12:21 PM

    Why am I being warned about potential exposure to chemicals in motor vehicle parts?


    • Some chemicals in motor vehicle parts are on the Proposition 65 list because they can cause cancer and/or birth defects or other reproductive harm.
    • When purchasing USED or NOS items, we do not know if listed chemicals are present in these products.
    • This product is known to contain the following listed chemicals:

    Help Improve this Product Listing

    I know it is hard to believe, but sometimes we make mistakes.
    Other times customers have more knowledge about a particular product than we do.
    Again, hard to believe, I know, but it is true.

    We greatly appreciate when customers want to help us make our site better.
    Because of this, we have developed a way for you to easily send suggestioned improvements to us.

    Help us improve this product