Best Performance Mods for Your Ford ST or RS
Mod Central
ECU Remapping
Even just a stage 1 remap can totally transform your ST or RS, increasing power and torque and improving the throttle response. In the hands of a good tuner, it's one of the best value-for-money upgrades available.- Increased power
- Increased fuel economy
- Biggest power gain for the money
High-Performance Intercoolers
Especially worth considering for the turbocharged EcoBoost engines in the Mk7/8 Fiesta ST and Mk3 Focus ST/RS. A larger intercooler keeps intake temperatures low and prevents power loss when under load.- They are a must for those running bigger power
- Increase longevity of your engine
- Keep IAT down
Performance Exhaust Systems
From cat-backs to full turbo-back setups, a performance exhaust does more than add power — it gives your Ford the dirty sound it was designed for. Manufacturers like Milltek and Scorpion are popular in the UK market.- Less restrictive over OEM system, increasing the cars power
- Nicer sounding exhaust note
- Usually will be lighter than the stock system
Lowering Springs & Coilovers
Lowering your ST or RS increases road presence and handling. Eibach and H&R springs are popular for street use, with adjustable coilovers offering more control for track-focused projects.- Lowering Springs are a cheaper alternative to coilovers, but don't give you the adjustability
- Lower centre of gravity for better handling
- A more aggressive stance and road presence
Big Brake Kits
With more power, you’ll need better stopping power. Upgraded discs, pads and even full big brake kits (AP Racing, Tarox) are a must-have for spirited driving or track days.- Greater stopping power is safer on and off the track
- With bigger an better brakes you will be able to brake longer and later than normal
