


Stainless Works Collector Adapter 3-Bolt 3-1/2in OD Tubing 3in OD Outlet + O2 Bung
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Stainless Works Collector Adapter 3-Bolt 3-1/2in OD Tubing 3in OD Outlet + O2 BungMade from 304 stainless steel for maximum corrosion resistance. The nicest collector adapters available! These are TIG welded for strength and durability. Come with 3 1 2" 3 bolt flange and a 3" OD outlet. An O2 bung is welded into the tubing, space approximately 2" from the inside edge of the flange. This collector adapter comes with a limited lifetime warranty and proudly made in the USA.
Quick Dispatch:
Your Stainless Works Collector Adapter 3-Bolt 3-1/2in OD Tubing 3in OD Outlet + O2 Bung orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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4.6 ★★★★★
Based on 2039 reviews
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Product Reviews
★★★★★ 5
Fit perfectly
Style: One Piece
Pops right in. Perfect fit and undistinguishable from the original.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
★★★★★ 5
Great product!
Style: Two Pieces
These were a perfect fit for my MB and very easy to install. Great value for the money. They should last given the way they were built.
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Reviewed in the United States on November 14, 2025
★★★★★ 5
Work good
Style: One Piece
Fit and work perfectly.
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Reviewed in the United States on April 16, 2026
★★★★★ 5
WHAT A MARVELOUS AIR FILTER.
Style: Two Pieces
SO FAR THESE FILTERS ARE MARVELOUS. THESE FILTERS ARE WELL MADE ESPECIALLY FOR THE PRICE. LOOKS LIKE A SIGNIFICANT $$$$ SAVINGS. TMP.
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Reviewed in the United States on March 9, 2026
★★★★★ 4
OEM quality
Style: One Piece
Good quality replacement. Perfect fit
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Reviewed in the United States on April 9, 2025