3.5" - Hypermax 6.9L IDI Diesel Exhaust Kit - 1983-1987 Ford F-Series

Hypermax 3.5" Exhaust System – 1983–1987 Ford F-Series with 6.9L Diesel

Unlock better flow and cooler temps with Hypermax’s 3.5" Performance Exhaust System, built specifically for 1983–1987 Ford F-Series pickups running the 6.9L IDI diesel. This system is designed to minimize turbocharger backpressure while improving overall exhaust efficiency and engine performance.

• Fits 1983–1987 Ford F-Series with 6.9L diesel

• Full 3.5" mandrel-bent system for maximum flow and reduced restriction

• Lower exhaust manifold temperatures for improved engine longevity

• Includes muffler, tailpipe, connecting pipes, hangers, and mounts

• Uses factory hanger locations for a clean, secure install

• DIY-friendly installation instructions included

Whether you’re building a more capable workhorse or improving your classic IDI's performance, this exhaust system helps your 6.9L breathe easier and run cooler. For professional installation, contact Hypermax or visit one of their certified install centers.