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Borla 40057 Boomer Thumper Universal Performance Muffler - Polished Stainless Steel

Part of: Borla S-Type Axle-Back Exhaust System

Other options in this family: Borla 11750 Borla 11970 Borla 11898 Borla 11828 Borla 11962CB

Manufacturer

Picture for manufacturer Borla

Part Number

40057
17 reviews
Sale Price

$298.99

1 left at this price

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Usually delivered within 2 days

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Product Details

The Borla 40057 Boomer Thumper is a high-tech, dyno and race-proven universal-fit performance muffler designed for street or track applications. This fully polished T-304 stainless steel muffler features an integrated 4-inch round polished tip and utilizes Borla's patented race-winning technology for improved exhaust flow. In addition to delivering a head-turning sound, this muffler adds a modest boost in horsepower.

Key Features:

  • 2.25-inch center inlet diameter
  • 4-inch fully polished round tip
  • Oval case size: 4.25 inches x 7.88 inches x 14 inches long body
  • Overall length: 19 inches
  • 100% welded construction for maximum strength
  • High-temperature continuous-filament fiber (CFF) acoustic material for sound control
  • Straight-through baffled internal construction

Manufactured in the USA from aircraft-grade T-304 austenitic stainless steel, this universal-fit muffler is backed by Borla's Million-Mile Warranty. The polished finish delivers an eye-catching appearance that complements any performance exhaust system. The natural mill finish can be brushed or polished prior to installation.

This is a universal-fit muffler suitable for custom exhaust fabrication on cars, trucks, and other performance vehicles.

Products specifications

Case Length (in)

14.000 in.

Case Shape

Oval

Case Size

14" x 4 1/2" x 7 7/8"

Inlet Diameter (ID)

2 1/4"

Inlet Diameter (in)

2.250 in.

Inlet Location

Center

Inlet Quantity

Single

Internal Construction

Straight-through baffled

Muffler Finish

Polished

Muffler Material

Stainless steel

Outlet Diameter (in)

4.000 in.

Outlet Location

Center

Outlet Quantity

Single

Outlet Style

Rounded

Outside Diameter (OD)

4" Side Round

Overall Length (in)

19.000 in.

Quantity

Sold individually.

Thickness (in)

4.125 in.

Width (in)

7.850 in.

Inlet Type

Single Center Inlet

Body Height (in.)

7.88

Body Length (in.)

14

Body Width (in.)

4.5

Inlet Size (in.)

2.25

Outlet Size (in.)

2.25

Overall Length (in.)

19

Body Length

14.000 in.

Inlet Inside Diameter

2.250 in.

Overall Length

19.000 in.

Inlet Outside Diameter

2.250 in.

Body Width

4.500 in.

Outlet Outside Diameter

2.250 in.

Tip / Outlet Finish

Polished T-304 Stainless Steel

Off Road Use Only

No

Prop 65

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov

Title Extended

Borla Borla Boomers Thumper Muffler; .25"X7.78"X14 OVAL.

Construction

All Welded

Material

T-304 Stainless Steel

Muffler Count

1

Main Piping Diameter

2.250 in.

Inlet Connection Type

Pipe

Body Width

4.25 in.

Inlet Position

Center

Inlet Type

Single Center

Outlet Type

Single Center Outlet

Shape

Oval

Outlet Position

Center

Title Extended

Thumper - 2.25" Inlet Pipe - Single 4" Round Tip - T-304 Stainless Steel Boomer Muffler Part # 40057

Overall Length

23.50 in.

Body Height

7.880 in.

Grade Type

Performance

Excellent parts, fast delivery and the correct parts I had ordered , what more could you ask from any reputable company. Great job guys.

Na

So far so good. 2 day shipping is appreciated!

Part easily found. We'll see when it arrives.

I recoeved my order in 2 days

Website a little glitchy but, in the end, I got it done!

thank you for the order

Quick and easy

fast shipping, product received was product described.

Great price,fast shipping, will buy from again. Thanks

Lowest price for the racks I bought, low shipping cost, and easy checkout. Great site... what more could you want?

The item was perfect just like from the store and shipped berry fast!!<br><br>Lower price than eBay or Amazon. <br><br>Will recommend to friends.

So far so good. I will see once the parts get delivered

good so far

Very descriptive about each part. Website is easy to use.

Best price out there

This was my first time using Autoplicity.com. It was an easy site to navigate. They had everything I was looking for in one place. The prices were reasonable and in the ball park for what I was looking to spend. I received confirmation of my order immediately and an email when my items were shipped. I will definetly shop Autoplicity again.

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