mufflers

Borla 40351 - ProXS Muffler

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$116.99

$129.99

You save: $13.00 (10%) off MSRP

stock messaging In StockIn Stock
Ships by 12/11/2022

This is a universal fit product

  1. That means this product doesn’t have fitment for any specific vehicle.
  2. If fitment is applicable for your application, be sure to check compatibility with the other components.
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About this product

Part #: 40351

Value-priced BORLA(R) ProXS mufflers share many of the hottest features of our performanceline. Including high-quality 300 Series austenitic stainless steel construction, streetcommandingsound and our Million Mile Warranty. Sizes are available for import anddomestic cars and trucks.

More Details

Body Height4.000 in.
Body Length14.000 in.
Body Width9.500 in.
Inlet Connection TypePipe
Inlet Inside Diameter2.250 in.
Inlet Outside Diameter2.250 in.
Inlet PositionOffset
Inlet TypeSingle Offset
Main Piping Diameter2.250 in.
Material304 Stainless Steel
Muffler Count1
Outlet Outside Diameter2.250 in.
Outlet PositionOffset
Outlet TypeSingle Offset Outlet
Overall Length19.000 in.
ShapeOval
Tip Quantity0

See what our community says about borla products

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What made you choose this particular product?
Borla makes the loudest exhaust available. Paired with long tubes and a catless x pipe, stupid loud, great deep racecar tone
Is this your first time buying from this brand? Did you consider other brands?
No it's not, borla stingers, 1 class below Ataks were first
Was it easy to install? Any installation tips that will help others?
Install on an 04 Cobra is simple, 4 rubber hangers, 4 flange bolts, 4 pipe clamps
Once you've had a chance to use the product, did it meet your expectations?
Met and exceeded my expectations like every other high quality product I put on my Cobra
Any additional comments?
You will get complaints, you will get nasty looks from the peasants below you, under WOT I cannot hear my 2.9 Whipple whine these are that loud
View on Stuart's build
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What made you choose this particular product?
Preformance
Is this your first time buying from this brand? Did you consider other brands?
No
Was it easy to install? Any installation tips that will help others?
Yes. Brake clean helps loosen rust to remove old exhaust.
Once you've had a chance to use the product, did it meet your expectations?
Not as loud as expected but still good
View on Loai's build
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What made you choose this particular product?
Had Follow masters they was to loud
Is this your first time buying from this brand? Did you consider other brands?
Yes
Was it easy to install? Any installation tips that will help others?
Installed it myself
Once you've had a chance to use the product, did it meet your expectations?
I love the sound
View on Glen's build
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What made you choose this particular product?
Well known brand.
Any additional comments?
Love the sound that comes out of these exhaust pipes. Nothing better.
View on Lily's build
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
Quality and tone. Not to bad on the eyes either
Is this your first time buying from this brand? Did you consider other brands?
Yes
Was it easy to install? Any installation tips that will help others?
Pretty straight forward
Once you've had a chance to use the product, did it meet your expectations?
Love the deep, but subdued tone compared to stock
Any additional comments?
Pairs well with hi flow b-pipes and headers to raise the volume a bit
View on Levi's build
California prop 65 warningWARNING: Cancer and Reproductive Harm www.p65warnings.cs.gov

*Some manufacturer restrictions apply.

About Borla

BORLA® is committed to providing world-class exhaust products which surpass the expectations of our customers. To that end, our facility is complete with a state-of-the art test and development center where we are continually improving our manufacturing efficiency and standards. We have pioneered a variety of improvements in the design of performance exhaust systems. Alex Borla currently holds several US patents for innovative exhaust system technology, and the company has won numerous "Best New Product" awards in the industry. Every BORLA® Cat-Back™ system, Header and Axle-Back is made from austenitic stainless steel (superior to 409 or aluminized steel) employing mandrel-bent tubing, all-welded construction, and is designed for accurate fit and easy installation. Over 30 years experience and special merge collector technology provide the ultimate in power and endurance.

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we ship worldwide!

Based in California with 3 warehouses across the country, we’re sending out shipments everyday of the week, even Saturdays. Because your next mod shouldn’t have to wait.

+ FREE GROUND SHIPPING ON U.S. ORDERS OVER $99
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Have a question? Ask an Expert!

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- but not to worry! Our team of experienced American Muscle, JDM, Euro, and off-road tuners are ready to answer your questions (as long as we’re not in the garage wrenching on our own builds).

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This is an awesome new site where enthusiasts can get together and figure out what products work best on their ride.

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