My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

Flowmaster 8430402 Series Delta Flow Chambered Muffler - 40

(Ford F-250 1988-95, Bronco 1985-91, F-350 1988-95; Chevrolet C1500 1988-93, Blazer 1987, K1500 1988-93, K2500 1988-93, C2500 1988-93, R2500 1989 + 7 more models)

Part of: Flowmaster Series Delta Flow Chambered Muffler

Other options in this family: Flowmaster 942551 Flowmaster 842553 Flowmaster 943050 Flowmaster 943052 Flowmaster 943053

Manufacturer

Picture for manufacturer Flowmaster

Part Number

8430402
12 reviews
Sale Price

$135.81

Estimated ship date Monday, November 23

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Flowmaster 40 Series Delta Flow Chambered Muffler delivers aggressive sound and proven performance for street, strip, and off-road applications. Featuring Flowmaster's race-proven Delta Flow technology, this chambered muffler uses a directional flow path design to reduce backpressure while producing the iconic deep, aggressive exhaust tone that enthusiasts demand.

Key Features:

  • Delta Flow technology for improved exhaust scavenging and horsepower gains
  • Fully welded 409 stainless steel construction for maximum durability and corrosion resistance
  • No internal packing materials that can deteriorate or blow out over time
  • Chambered design creates deep, aggressive exhaust note
  • Ideal for street performance, drag racing, and off-road vehicles
  • Moderate to aggressive exterior sound level

The 40 Series represents Flowmaster's most popular performance muffler line, offering an excellent balance of power gains, durability, and that unmistakable muscle car sound. The welded stainless steel body ensures long-lasting performance in all weather conditions, while the chambered design provides consistent sound quality throughout the life of the muffler.

Products specifications

Fits

Ford F-250 1988-95, Bronco 1985-91, F-350 1988-95; Chevrolet C1500 1988-93, Blazer 1987, K1500 1988-93, K2500 1988-93, C2500 1988-93, R2500 1989; GMC K1500 1988-93, C1500 1988-93, K2500 1988-93, Jimmy 1980-87, C2500 1988-93 + 2 more models

Body Height

4.00

Body Length

13.00

Body Material

409 Stainless Steel

Body Width

9.75

Brand

Flowmaster

Prop 65

Yes

California Proposition 65 Chemical Name

Chromium (hexavalent compounds)

California Proposition 65 Chemical Name

Nickel (Metallic)

Category

Exhaust

Clamps Included

No

Color

Black

Emission Code

5

Exhaust Tip Quantity

0

Exhaust Tip Quantity

Sold Separately

Finish

High-Temperature Paint

Fitment

Universal

Grade Type

Performance

Hanger Included

No

Heat Shield Attached

No

Inlet Connection

Slip-Fit

Inlet Diameter

3.00

Inlet Location

Center

Inlet Quantity

1

Inlet Type

Weld-On

Inlet Type

Clamp-On

Mount Type

Uses New Hangers (Not Included)

Muffler Series

40 Series Delta Flow

Muffler Type

Chambered

Outlet Connection

Slip-Fit

Outlet Location

Dual

Outlet Outside Diameter

2.63

Outlet Quantity

2

Outlet Type

Dual

Overall Length

19.00

Part Type

Exhaust Muffler

Product Type

Street Mufflers

Reversible

No

Shape

Oval

Sound Level

Aggressive

Sub Category

Mufflers

Tunable

No

Universal Or Specific Fit

Universal

Vehicle Type

4/6 CYL Engine

Vehicle Type

Street Rod

Vehicle Type

Street/Strip

Vehicle Type

Truck/SUV

Vehicle Type

Classic Muscle Car

Vehicle Type

Late Model Muscle Car

Warning

California Proposition 65

Fast shipping and great prices

Great website

Thank You!

Overall great customer service, I would recommend anyone to try thmotorsports.com

great!

Easy

Great prices very friendly customer service and fast shipping

So far so good, great price.

I spent hrs looking and researching parts and prices... Hands down Autoplicity<br> has it and at the best price you'll find!!

Great

very excellent oil the only oil that has been in my harley since it was new and it a 95 very fast shipper ordered it 19 feb and got it 22 feb

Autoplicity has great prices and products are shipped promptly. My trailer hitch arrived the day after it was shipped. Autoplicity sent a tracking number. I would order again.

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy