SPD Performance Alpha catted downpipes for 2021–2023 Ford F-150 Raptor Gen 3
Designed specifically for the 3.5L EcoBoost engine platform
High-flow catalytic converters improve exhaust flow and performance
Bolt-on, direct-fit design for easy installation
Ideal upgrade for increased power, torque, and aggressive exhaust tone
or as low as $191.25/mo with Affirm
Available
Gen3 Ford 3.5L EcoBoost | 3" 304SS Mandrel Bent | Ultra High Flow Cats
After 2 years of design, SPD's industry-first Alpha Cats provide ultra-high flow while meeting green emission standards. Factory GEN3 Raptor downpipes reduce cat diameter from 5.5" to 5", causing higher back pressure and EGTs. SPD's larger 3" mandrel bent tubing improves throttle response, mileage, and overall performance.
🛒 Add To CartKey Features
400-cell Alpha Cats provide maximum flow while meeting green emissions.
Direct bolt-on replacement with no custom tuning needed.
Ultra high flow cats designed to not trigger CEL codes.
Premium grade stainless with TIG & MIG welded construction.
Technical Data
Performance Benefits
Reduced turbo lag with larger diameter tubing and high-flow cats.
Reduced exhaust temperatures for improved engine longevity.
Improved efficiency from reduced back pressure and better flow.
Engineered specifically for Gen3 Ford 3.5L EcoBoost Raptor. Direct bolt-on installation with factory-style fitment. Professional installation recommended.
Function Factory Performance is your trusted source for SPD Performance exhaust upgrades. Professional installation available at our Thousand Oaks facility.
With SPD Alpha ultra high flow cats and larger 3″ diameter mandrel bent tubing, you will improve throttle response, mileage and overall performance while reducing turbo lag and exhaust temperatures.
Our turbo flanges are CNC laser cut 1/2″ 304ss flanges and we TIG & MIG weld the downpipes for strength and durability. With SPD Alpha ultra high flow cats and larger 3″ diameter mandrel bent tubing, you will improve throttle response, mileage and overall performance while reducing turbo lag and exhaust temperatures. They are extra loaded with Rhodium, which is a platinum based alloy that is required in a catalytic convertor to reduce NOX in the exhaust to meet the new emission standards.
SPD Alpha Cats SPD Alpha Cats are next generation ultra high flow green emissions catalytic convertors and are truly an industry first. SPD Alpha Cat is a 500cell catalytic convertor and will out flow our previous 400cell performance cats by +90%. Every catalytic convertor that we tested in the industry either had green emissions or high flow but not both.
Hear how it sounds installed.YouTube videos courtesy of SPD Performance.
“Our Industry first Alpha Cats provide ultra high flow while meeting green emission standards.”





Install note: Our downpipes do not require custom tuning and can be used as a factory downpipe replacement.
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