Turbo-Back

The MagnaFlow Custom Builder Pipe Series Turbo-Back Performance Exhaust 17878 utilizes a weight-optimized, emissions-legal design engineered to enhance your diesel truck with our signature resonant sound and dyno-proven performance. This turbo-back 4in. diameter Custom Builder Pipe kit is made of durable, corrosion resistant stainless steel and produced using CNC precision robotic manufacturing techniques, all backed by MagnaFlow's limited lifetime warranty. Exhaust kit 17878's mandrel bent pipes have been tuned to produce Aggressive interior and Very Aggressive exterior sound levels. The system terminates in a Single Passenger Side Rear exit. Professional installation is recommended due to the possible cutting, welding and fabrication required.

Additional Information

Magnaflow Custom Builder Pipe Kit Diesel 4in. Turbo-Back

Part Type

Exhaust System Kit

Product Overview

The MagnaFlow Custom Builder Pipe Series Turbo-Back Performance Exhaust 17878 utilizes a weight-optimized, emissions-legal design engineered to enhance your diesel truck with our signature resonant sound and dyno-proven performance. This turbo-back 4in. diameter Custom Builder Pipe kit is made of durable, corrosion resistant stainless steel and produced using CNC precision robotic manufacturing techniques, all backed by MagnaFlow's limited lifetime warranty. Exhaust kit 17878's mandrel bent pipes have been tuned to produce Aggressive interior and Very Aggressive exterior exterior sound levels. The system terminates in a Single Passenger Side Rear exit. Professional installation is recommended due to the possible cutting, welding and fabrication required.

These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.

• Attention grabbing design thanks to an aggressive style
• Features All Components Necessary To Enable Flexible Installation Options
• Layout, placement, orientation and exhaust note are yours to craft as you see fit
• Layout/Placement/Orientation And Exhaust Note Are Yours To Craft As You See Fit

Note on Vehicle Configuration

This listing includes the term "driver" or "passenger". Please note that this may refer to a region specific variation based on vehicle configuration (LHD/RHD) or regional preferences. Much of our database relates to US sourced products where "Driver" typically refers to the left-hand side in LHD vehicles, and "passenger" to the right. In RHD vehicles, this terminology is reversed. Review product details carefully for compatibility. Contact support if you have any questions. StreetFX may not accept returns for special order products.

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Product Details

Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

Exhaust System, Custom Builder, Stainless Steel, Turbo-Back, Passenger Side Exit, 4.0 in. Diameter, Ford, Super Duty, Kit

Designing a custom exhaust is difficult enough without making the custom pieces. MagnaFlow Custom Builder exhaust kits feature high-quality stainless steel pieces for longevity, mandrel bends for complete flow, and pipe-only construction. They run from the turbo back. Racers can use these kits as is, while street legal trucks will need at least a converter (not included). MagnaFlow Custom Builder exhaust kits provide options while taking out the guesswork.