Back 
Shop Super 40 Series Mufflers 1978-1987 Grand Prix
Super 40 Series Mufflers 1978-1987 Grand Prix Products
Flowmaster Super 40 Series Muffler 409S, 2.5 In. Dual Inlet, 2.5 In. Dual Outlet, Aggressive
Part #: FLOW-8525454
| Manufacturer Part #: 8525454
$184.99
$165.99
(Each)
Flowmaster Super 40 Series Muffler 409S, 2.5 In. Offset Inlet, 2.5 In. Center Outlet, Aggressive
Part #: FLOW-852546
| Manufacturer Part #: 852546
$172.99
$154.99
(Each)
Flowmaster Super 40 Series Muffler 409S, 3 In. Center Inlet, 2.5 In. Dual Outlet, Aggressive
Part #: FLOW-8530452
| Manufacturer Part #: 8530452
$184.99
$165.99
(Each)
Flowmaster Super 40 Series Muffler 409S, 3 In. Offset Inlet, 3 In. Center Outlet, Aggressive
Part #: FLOW-853046
| Manufacturer Part #: 853046
$172.99
$154.99
(Each)
Flowmaster Super 40 Series Muffler 409S, 3.5 In. Offset Inlet, 3.5 In. Offset Outlet, Aggressive
Part #: FLOW-853548
| Manufacturer Part #: 853548
$206.99
$185.99
(Each)
Flowmaster Super 40 Series Muffler, 2.5 In. Center Inlet, 2.5 In. Center Outlet, Aggressive
Part #: FLOW-952545
| Manufacturer Part #: 952545
$149.99
$133.99
(Each)
Flowmaster Super 40 Series Muffler, 2.5 In. Center Inlet, 2.5 In. Offset Outlet, Aggressive
Part #: FLOW-952547
| Manufacturer Part #: 952547
$149.99
$133.99
(Each)
Flowmaster Super 40 Series Muffler, 2.5 In. Dual Inlet, 2.5 In. Dual Outlet, Aggressive
Part #: FLOW-9525454
| Manufacturer Part #: 9525454
$172.99
$154.99
(Each)
Flowmaster Super 40 Series Muffler, 2.5 In. Offset Inlet, 2.5 In. Center Outlet, Aggressive
Part #: FLOW-952546
| Manufacturer Part #: 952546
$149.99
$133.99
(Each)
Flowmaster Super 40 Series Muffler, 2.5 In. Offset Inlet, 2.5 In. Offset Outlet, Aggressive
Part #: FLOW-952548
| Manufacturer Part #: 952548
$149.99
$133.99
(Each)
Flowmaster Super 40 Series Muffler, 3 In. Center Inlet, 2.5 In. Dual Outlet, Aggressive
Part #: FLOW-9530452
| Manufacturer Part #: 9530452
$172.99
$154.99
(Each)
Flowmaster Super 40 Series Muffler, 3 In. Center Inlet, 3 In. Center Outlet, Aggressive
Part #: FLOW-953045
| Manufacturer Part #: 953045
$149.99
$133.99
(Each)
Flowmaster Super 40 Series Muffler, 3 In. Center Inlet, 3 In. Offset Outlet, Aggressive
Part #: FLOW-953047
| Manufacturer Part #: 953047
$149.99
$133.99
(Each)
Flowmaster Super 40 Series Muffler, 3 In. Offset Inlet, 3 In. Center Outlet, Aggressive
Part #: FLOW-953046
| Manufacturer Part #: 953046
$149.99
$133.99
(Each)
New Products For Grand Prix
New & Exciting Products for 1978-1987 Grand Prix's
Have a Question About Your
Grand Prix Restoration
?
Our knowledgeable team is standing by to help you with your restoration needs!
Monday-Thursday: 9-5 | Friday: 9-3 | Saturday : 9-1 ET* | Sunday: CLOSED
Brands We Carry For Grand Prix
We work with the strongest brands in our industry so you know you’re getting the best quality restoration parts available.
Get updates and special offers from SS396.com
Stay up-to-date on our promotions, flash sales and all things built from the Ground Up! Let us know the car your working on so we can tailor emails to the car you’re shopping for!
Grand Prix Information Resources
Sometimes knowledge is your best tool. Select your year below to find information, resources, specifications, and more!
