I Took Some Shocks Apart To See How They Work. Here's What I Learned - The Autopian
FPS 805-00-066-KIT Fox Shock 2.5" Internal Floating Reservoir Piston With Bleeder Screw Hole - Kartek Off-Road
Suspension Tech: What's an IFP? - Bikerumor
OE Replacement 2.5 Inch Front Coil-Over Kit 19 and Up Ranger 2 Inch Lift Internal Floating Piston Radflo | Downsouth Motorsports
G3S Shock Types
We replace Internal Floating Piston (IFP) seal on every rebuild we perform. The IFP inside of the shock separates the oil from the nitrogen and the seal... | By Suspension Proz | Facebook