INSTRUCTIONS FOR FORD 450 99-02

INSTALLING PERFORMANCE EXHAUST SYSTEM

1.) From under the truck, install the down pipe (FDDP400). For Automatic transmission: rotate down pipe in as needed. For standard transmissions: start with the flange up, point outlet  towards the left front tire and rotate up and back to transmission. Remove the two transmission mount nuts at the transmission cross member and jack transmission up an inch or two, then finish rotating pipe past the transmission. Reinstall the clamp at the turbo (use
the stock clamp for this). Use bungee strap to hold the down pipe in place to align at turbo.  Snug the clamp down so it will hold but can be moved. 

2.) Install the muffler to the stock rubber hangers using the “T” shaped hanger (DIAM400,  C99-4H-14).

3.) Install the first section of straight pipe (FDIS48). Use the one with two slight bends. Attach it to the down pipe with the clamp (C99-4-5). DO NOT TIGHTEN!

4.) Hold the second section of straight pipe (FDIP48) up between the first section and the muffler or measure and cut for correct wheelbase, BE SURE TO MEASURE LONG ENOUGH FOR THE TWO SLIP JOINTS. 

5.) Install both hangers (C99-4-5, C99-4H-12) after rotating the bent pipe to clear the heat shield. Then install the muffler clamps at the straight pipe joint and the muffler. DO NOT TIGHTEN!

6.) Install the two piece tailpipe (EXCTP-1&2). Align between the shock and the spare tire.  Then install the tailpipe hanger (C99-4H-15) to the stock rubber hanger and align to clear  the leaf spring. Then install the last clamp (C99-4-5).

7.) Starting from the band clamp, tighten and align from the front to the rear, checking  clearance as you go. We also suggest two welds at each joint to minimize movement. DO NOT WELD THE CLAMP!   Last finish tightening clamp at turbo.

Tools necessary for installation:
9/16” end wrench or socket, WD-40 or other lubricant, Sawzall or hacksaw