I know this is the maintenance schedule for a stock FD (pulled from fd3s.net)

Schedule 2 (Unique Driving Conditions) U.S.A.

At 3 Months or 3,000 miles:
Replace Engine Oil and Filter
At 3 Months or 5,000 miles:
Inspect Tension of All Drive Belts
Inspect the Engine Coolant Level and Strength
Inspect Automatic Transmission Fluid Level
Inspect Oil Level in Final Drive Case
Inspect Brake and Clutch Fluid Level
Inspect Tire Inflation and Tire Wear
Inspect Power Steering Fluid Level
Inspect Washer Fluid Level
Inspect Function of All Lights
Lubricate All Locks and Hinges
Annually Inspect Refrigerant Amount and Compressor Operation
At 15 Months or 15,000 miles:
Inspect Air Cleaner Element
Inspect Coolant System for Leaks
Inspect Idle Speed
Inspect Manual Transmission Oil Level
Inspect Disc Brakes Front and Rear
Inspect Engine Oil Level Warning System
Rotate Tires
Tighten All Chassis Nuts and Bolts
At 30 Months or 30,000 miles:
Replace Air Cleaner Element
Replace Spark Plugs
Replace Engine Coolant
Replace Fuel Filter
Replace Transmission Oil M/T and A/T
Replace Differential Oil
Replace Brake Fluid
Inspect Fuel Lines and Hoses
Inspect Drive Shaft Dust Boots
Inspect Brake Lines and Hoses
Inspect Steering Operation and Linkage (Includes Four Wheel Alignment)
Inspect Suspension Components Front and Rear
Inspect Front and Rear Suspension Ball Joints
Inspect Rear Suspension Uniball and Sliding Rubber Bushing
Inspect Drive Shaft Dust Boots
Inspect Exhaust System Heat Shield
Inspect Engine Coolant Level Warning System
At 60 months or 60,000 miles (Not specified but just my opinion)
Replace Drive Belts

But what about when you upgrade and are above stock hp levels or around 400hp? What changes/additions to the maintenance schedule should be made?

 

See below my username... thats all you need to remember

 

IMO, most of that still applies. The one thing which you'll need to check/replace more often is spark plugs.

 

ok. I was just thinking about coolant and oil mostly. I figured with all the upgrades and stuff I have done now and the hp increase, that meant more stress on everything which should mean the maintenance schedule should get tighter.

I think I'll just stick to that schedule but watch things closer and make sure everything stays fresh.