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$104.99
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Borla® 40357 ProXS™ Muffler, 2.25 Center In/Offset Out
Borla® 40357 ProXS™ Muffler, 2.25 Center In/Offset Out

Borla® 40357 ProXS™ Muffler, 2.25 Center In/Offset Out

Universal Fit, Straight-Through Muffler Type, 2.25" Inlet Diameter, 2.25" Outlet Diameter

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Borla® 40357 ProXS™ Muffler, 2.25 Center In/Offset Out
Borla® 40357 ProXS™ Muffler, 2.25 Center In/Offset Out
Borla® 40357 ProXS™ Muffler, 2.25 Center In/Offset Out
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Borla® 40357 ProXS™ Muffler, 2.25 Center In/Offset Out
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Part # 21540357
$100.99
$104.99
each
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Details

Muffler Type:
Straight-Through
Reversible:
Yes
Inlet Diameter:
2.25"
Outlet Diameter:
2.25"
Overall Width:
9.50"
Body Length:
14.00"
Overall Thickness:
4.00"
Material Type:
304 Stainless Steel
Finish:
Natural
Exhaust Tip Included:
No
Case Shape:
Oval
Inlet Location:
Center
Outlet Location:
Offset
Outlet Quantity:
One
Inlet Quantity:
One
MFG. Part #:
40357
GTIN Code:
808422403573
Sold in Quantity:
Each

Info

Borla® ProXS™ mufflers feature a straight-through, revesible design. They provide all welded construction and are built of 100% premium, high-quality T-304 austenitic stainless steel--stainless steel inside and out. Not mild steel, not aluminum, not mild steel coated with aluminum, not just wrapped with stainless steel on the outside for show, and not 400 series stainless steel. Comparing other materials and coated materials to T-304 stainless steel is like comparing silver-plated metal to solid gold! T-304 stainless steel has has a high chromium and nickel content, making it the most resistant to corrosion and therfore the most desireable material for a long-lasting exhaust system. Best of all, it's made in the USA and backed by Borla'®s unsurpassed Million-Mile warranty. 

  • Straight-Though design
  • 2-1/4" centered single inlet
  • 2-1/4" offset single outlet
  • T-304 Stainless Steel
  • Reversible - mount in either direction
  • Natural Mill Finish
  • Oval shape
  • Sold each

Important Messages

  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
Some parts are not legal for use in California or other states with similar laws/regulations

Reviews

Q & A

Videos & Articles
  • Pat shows that exhaust can make a difference on even your daily driver. Check out this video of Pat with the Hooker Muffler installed on his '03 Suburban.
  • If you're ready to get your street machine sounding as good as it looks, it's important to know how each muffler will affect your sound and performance. Take a listen and decide which muffler is best for your rod.
  • That fresh engine deserves all new exhaust bits. Be sure to have a look at our rundown on selecting the best setup for headers, exhaust, and mufflers for your ride here.
  • This dual exhaust size chart will help you choose the correct size exhaust pipe for your horsepower range.

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