



DeatschWerks LS1/LS6 Series / 85-04 4.6L & 5.0L V8 Mustang 39lb Injectors
Marsoni
M251S
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Friday, May 29
DeatschWerks LS1/LS6 Series / 85-04 4.6L & 5.0L V8 Mustang 39lb InjectorsDeatschWerks, LLC provides high performance fuel system solutions for the automotive aftermarket. Located in Oklahoma City, OK, DW houses all of the company? s functions including design, end manufacturing, quality assurance, sales, marketing, and administration in its 36,000sf facility. DeatschWerks? roots were established in 2004 by offering high flow drop in fitment fuel injectors. In 2009 DW expanded into fuel pumps with the DW300, the highest
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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.
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Product Reviews
★★★★★ 5
Exact fit, no trimming needed
Style: One Piece
Ordered this for my Ford F-150 and it dropped right into the airbox perfectly — same dimensions as the OEM filter, same end seals, same fit. No gaps, no air bypass around the edges. Clean swap in under five minutes. Engine runs smooth and the price is unbeatable.
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Reviewed in the United States on May 11, 2026
★★★★★ 5
very nice product
Style: Two Pieces
It fits perfectly. Easy to install.
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Reviewed in the United States on January 15, 2026
★★★★★ 5
Good Product and Price.
Style: One Piece
Great filter, fits perfectly. Very close to OEM fit. I have 2015 Mercedes E350, fit perfectly.
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Reviewed in the United States on December 3, 2025
★★★★★ 5
Great plug
Style: Single
My car goes through these every 30,000 miles or so. But fantastic plug all around. Performs flawlessly even at almost 9000 rpm.
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Reviewed in the United States on September 11, 2015
★★★★★ 5
Product as described, Works great.
Style: Single
Product as described, Works great.
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Reviewed in the United States on August 27, 2015