Increase to 300bhp

[edar]

Having had my 03 Impreza wagon on the rolling road recently I was surprised to see it achieve 281.3 bhp. Not bad considering its only had a few inexpensive mods fitted - re map and de-cat exhaust. Is there any further modifications that will achieve around 300bhp?

Any suggestions would be greatly appreciated

[Lefty]

Andy Forrest seems to think you'll need a different turbo...

click

[IvanSTi]

You'll have a TD04 in your car, either a hybrid TD04 from AFP or a TD05-16G will get you to 300BHP along with a Panel Filter and an uprated Fuel Pump (Walbro 255 for example) as the OEM are poop.

I'd recommend removing your catted up pipe if doing this as you don't want that to go and end up wiping your turbo and engine out.

Taking note of AFP website as linked up there ^ you won't go far wrong.