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Inside the Fleece Garage

Testimonial: Why your 6.7L Ford Power Stroke needs this Injector Return Line Repair Fitting

The Aftermarket Injector Return Line Fitting Every 6.7L Ford Power Stroke Needs. Trade your 6.7L Power Stroke’s failure-prone, plastic injector return line fitting in for a heavy-duty aluminum, double O-ring sealed replacement from Fleece Performance Engineering.
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Pro Tip: Boost Leak your Turbo after installing it.

Pro Tip: Boost Leak your Turbo after installing it.
After installing one of our turbos, our team of experts recommends a boost leak test. It's worth the extra time as an air leak could cause reduced power, poor fuel economy, increased exhaust gas temperatures (EGTs) and turbo lag.
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All Lights On (ALO) Troubleshooting Tips

All Lights On (ALO) Troubleshooting Tips
The installation of your All Lights On® from Fleece Performance Engineering should be easy to complete in about 10 minutes. In the event that you run into some problems, our team has some great tips get your truck illuminating the road ahead!
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Quality Diesel Performance | Dyno competition and Show & Shine

Fleece Alert! Come See Us at Quality Diesel Performance May 23, 2026 Columbia City, IN
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Freedom Series Diesel Oil - Treat Your Diesel Right!

Freedom Series Diesel Oil - Treat Your Diesel Right!
The Freedom Series emerged when Fleece Performance Engineering and AMSOIL partnered to develop an advanced formulation for diesel pickup trucks. Learn more about the line-up of fluids.
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Fleece Parts Available at Select NAPA Stores!

Select Fleece Performance parts may now be available beginning in 2025 at your local NAPA Auto & Truck Parts Store.
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IMPORTANT: We will not be shipping product between the dates of July 5th and July 11th. All orders will be processed and shipped the week of July 12th.

While we are closed take advantage of 5% off MSRP!

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