4" Downpipe-Back Cab&Chassis 2011-2019 Ford 6.7 Powerstroke DPF Delete Race Pipe | SPELAB

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Unlock your 2011-2019 6.7 Powerstroke true potential with this high-performance DPF delete pipe. Our precision-engineered solution eliminates restrictive factory filters, dramatically reducing exhaust gas temperatures (EGTs) while improving turbo spool-up and throttle response. The mandrel-bent construction ensures maximum flow efficiency, helping your diesel breathe easier. Perfect for off-road enthusiasts seeking better power delivery and reduced maintenance hassles.

Specification

Benefits

Expect to see a significant increase in fuel mileage. If your DPF is plugged up your probably averaging about 13-14 mpg. More or less depending on the severity of the restriction. After deleting the DPF/CAT expect to get a combined mileage of 18-19 mpg.

• It removes the need to service the DPF at regular intervals (cleaning, replacement)
• A DPF delete will remove the possibility of a DPF failure which could cause expensive diesel repairs
• Due to less exhaust backpressure, the DPF delete increases exhaust flow and therefore increases the performance of your motor!
• Paired with an ECU remap, the DPF delete is proven to increase power and torque for all vehicles

Installation

Install takes about 1hr with basic hand tools done on the ground of your driveway or garage. Quicker if you have automotive style lift. Cutting may be be required to fit shorter wheelbase bed/cab configurations. Clamps, hangers and hardware are included. You may have to re-use some factory hardware.
Tuner Required: Removal of the DPF, CAT, SCR, and/or DOC involves removing and eliminating emission related sensors. A DPF delete capable tuner is required to prevent any check engine light or diagnostic trouble codes from setting.

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2011-2019 Ford f-250 f-350 f-450 SuperDuty 6.7 Powerstroke Diesel. 

Please note that cab & chassis trucks often have different requirements than standard pickup trucks.  If you have a cab & chassis truck, there may be a more specific kit available for your application.  If unsure of your fitment, please email before ordering.

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Q1: Does installation require cutting the factory exhaust?
A1: Yes, the stock downpipe must be cut at a marked location, but our clamp-on/flange design allows for reversible modification.

Q2: Will this trigger a check engine light?
A2: A downpipe-back-only installation won’t cause fault codes. However, removing emissions equipment (DPF/SCR) requires ECU tuning.

Q3: How does it affect performance and fuel economy?
A3: Reduces exhaust backpressure by 15-20%, improving turbo spool and throttle response. Highway fuel efficiency may increase by 0.5-1L/100km with conservative driving.

Q4: Will the exhaust be significantly louder?
A4: Muffled versions maintain a deep but street-legal tone; straight-pipe variants are race-oriented (check local noise ordinances).

Q5: Is the stainless steel corrosion-resistant?
A5: Constructed from T409 stainless steel, offering better rust resistance than OEM. Coastal climates should inspect welds annually.

Q6: Will this pass emissions testing?
A6: Downpipe-back systems with factory cats comply in most regions. DPF/SCR deletion is for off-road use only.

Q7: Why choose 4" over 5" piping?
A7: 4" optimizes flow for stock turbos (<600HP builds); 5" suits high-HP applications with larger turbochargers.

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