Slowboy Racing
Forester 2004+
Downpipe option
Our forester tuning pack is ideal for Subaru owners wanting to improve performance for road cars. We replace the stock down-pipe with a high-flow sports cat to improve flow. We then swap the stock fuel pump for the RCM 340 to ensure good fuel delivery. Finally, we add a high-flow panel filter to improve engine breathing. Your car is then mapped on the road optimising throttle response for peak power and mid-range. The result is a greatly improved power band with a boost target being achieved sooner and holding for longer across the RPM range. Your map will retain all the factory functions your used to along with the improved safety functions. Please consider power figures may vary based on engine condition and millage. We spend an average of 3 hours mapping each car
- RCM Panel filter
- Cobra Sports cat "Decat option available for track use only"
- RCM 340 Fuel pump
- Cobra resonated centre pipe
- SBR live mapping
- SBR 3 port boost solenoid