Presenting SPD's GEN4 Raptor downpipes. Why GEN4?? Ford made a few big changes to the 2024+ Raptor 3.5L EcoBoost Engines. These engines do not have exhaust manifolds and the turbos are bolted directly to the heads. Ford first did this on the 2.7L and 3.0L EcoBoost engines.
SPD's Industry first Alpha Cats provide ultra high flow while meeting green emission standards. Factory GEN4 Raptor downpipes are very restrictive because Ford reduces the diameter of their primary cats from 5.5" to 5". This reduction in diameter (-5 square inches of surface area) causes much higher back pressure and EGTs. 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. SPD's turbo flanges are CNC laser cut 1/2" 304SS flanges and are TIG & MIG welded to the downpipes for strength and durability. SPD designed and added a 4" flex pipe to absorb shock from engine movement and chassis flex. SPD downpipes do not require custom tuning and can be used as a factory downpipe replacement. SPD's catalytic convertors are EPA-legal, made in the USA, and are designed to be used in racing applications.
SPD Alpha Cats
SPD Alpha Cats are next generation ultra high flow green emissions catalytic convertors and are truly an industry first. SPD needed a catalytic convertor that would have high flow and green emissions. Every catalytic convertor that was tested in the industry either had green emissions or high flow, but not both. SPD's Alpha Cat is a 500cell catalytic convertor and will out flow previous 400cell performance cats by +90%. 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.
On all SPD Performance 304 stainless catted downpipes, you get:
- Increase in performance
- Improved turbo spool time
- Better fuel mileage
- Direct turbo bolt-on design
- NO CEL - Ultra High Flow 500Cell catalytic converters that do not cause check engine lights
- 304 Stainless Steel 3" mandrel bent tubing
- High grade v-band clamp for a solid seal and no leaks
SPD use EPA approved federal catalytic converters, but you are responsible to verify that they are legal with your state and county laws.
We will NOT ship this product to California.
