


FTI 9.5in 4L80E/4L85E Billet Lock-Up Street Racer Series - LS - 3600 Stall
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
FTI 9.5in 4L80E/4L85E Billet Lock-Up Street Racer Series - LS - 3600 StallFTI Performance SRLS40086 9. 5IN 4L80E 4L85E Billet Lock Up Street Racer Series Torque Converter LS. FTI Performance SRL Series billet lockup torque converters feature a computer designed CNC machined billet front cover and a billet lockup piston making premature clutch wear a thing of the past. With custom stator designs and multiple blade angle pumps stalls are available from 2 800 4 400 rpm. They are custom built to your exact needs and driving
Quick Dispatch:
Your FTI 9.5in 4L80E/4L85E Billet Lock-Up Street Racer Series - LS - 3600 Stall 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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You'll receive a tracking link by email once your FTI 9.5in 4L80E/4L85E Billet Lock-Up Street Racer Series - LS - 3600 Stall ships.
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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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4.1 ★★★★★
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★★★★★ 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
★★★★★ 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