
Boost the performance of your 6.4 Powerstroke with the MBRP FS9CA455 4-Inch XP Series Turbo Downpipe. Engineered for increased exhaust flow and power, this downpipe features mandrel-bent construction that ensures smooth, unrestricted airflow, enhancing your truck’s efficiency and performance. Built from high-quality T409 stainless steel, it delivers superior durability and resistance to corrosion, making it ideal for withstanding harsh conditions.
Precision is key with the jig-manufactured design, guaranteeing a perfect fit and easy installation. The rugged 16-gauge construction further ensures longevity and reliability, making this downpipe a long-lasting upgrade for your truck. Whether you’re seeking increased power or improved exhaust flow, the MBRP XP Series Downpipe is built to deliver.
Key Features:
- Mandrel-Bent Design for increased exhaust flow and enhanced performance.
- T409 Stainless Steel Construction for superior durability and corrosion resistance.
- Jig-Manufactured for perfect fitment and easy installation.
- Rugged 16-Gauge Construction for long-lasting reliability.
Upgrade your truck’s exhaust system with the MBRP FS9CA455 4-Inch XP Series Turbo Downpipe and experience improved flow, power, and durability.

Boost the performance of your 6.4 Powerstroke with the MBRP FS9CA455 4-Inch XP Series Turbo Downpipe. Engineered for increased exhaust flow and power, this downpipe features mandrel-bent construction that ensures smooth, unrestricted airflow, enhancing your truck’s efficiency and performance. Built from high-quality T409 stainless steel, it delivers superior durability and resistance to corrosion, making it ideal for withstanding harsh conditions.
Precision is key with the jig-manufactured design, guaranteeing a perfect fit and easy installation. The rugged 16-gauge construction further ensures longevity and reliability, making this downpipe a long-lasting upgrade for your truck. Whether you’re seeking increased power or improved exhaust flow, the MBRP XP Series Downpipe is built to deliver.
Key Features:
Mandrel-Bent Design for increased exhaust flow and enhanced performance.
T409 Stainless Steel Construction for superior durability and corrosion resistance.
Jig-Manufactured for perfect fitment and easy installation.
Rugged 16-Gauge Construction for long-lasting reliability.
Upgrade your truck’s exhaust system with the MBRP FS9CA455 4-Inch XP Series Turb[...]
Boost the performance of your 6.4 Powerstroke with the MBRP FS9CA455 4-Inch XP Series Turbo Downpipe. Engineered for increased exhaust flow and power, this downpipe features mandrel-bent construction that ensures smooth, unrestricted airflow, enhancing your truck’s efficiency and performance. Built from high-quality T409 stainless steel, it delivers superior durability and resistance to corrosion, making it ideal for withstanding harsh conditions.
Precision is key with the jig-manufactured design, guaranteeing a perfect fit and easy installation. The rugged 16-gauge construction further ensures longevity and reliability, making this downpipe a long-lasting upgrade for your truck. Whether you’re seeking increased power or improved exhaust flow, the MBRP XP Series Downpipe is built to deliver.
Key Features:
- Mandrel-Bent Design for increased exhaust flow and enhanced performance.
- T409 Stainless Steel Construction for superior durability and corrosion resistance.
- Jig-Manufactured for perfect fitment and easy installation.
- Rugged 16-Gauge Construction for long-lasting reliability.
Upgrade your truck’s exhaust system with the MBRP FS9CA455 4-Inch XP Series Turbo Downpipe and experience improved flow, power, and durability.