About Us

2006 - 2016 STI UK

Level 1 310-330 bhp

Sportscat Exhaust System
EcuTek custom remap (compares to PPP)

Level 2 350-370 bhp

Full Decat turbo back 2.5 " or 3" bore
Walbro 255 l/hr uprated fuel pump (not reqd on 08/09) 
EcuTek custom remap 
K+N panel filter (cold air induction required on 08/09)

Level 3 380-390 bhp

Full Decat turbo back 3" bore
Walbro 255 l/hr uprated fuel pump
K+N panel filter (cold air induction required on 08/09)
Ecutek custom remap
Fuel Lab turbo specification fuel pressure regulator with fitting kit & gauge
AFP 5-20G Ported Exhaust & wastegate sized to 2.5 and machined to suit
NGK uprated spark plugs

Level 4 400-420 bhp

Full Decat turbo back 3" bore exhaust system
Tubular exhaust headers and flow matched uppipe
Walbro 255 l/hr uprated fuel pump
EcuTek custom remap
Custom Cold air induction
650cc Injectors
AFP 321T custom turbocharger with fitting kit
NGK uprated spark plugs

Level 5 420-460 bhp

Full Decat turbo back 3" bore exhaust system
Tubular exhaust headers and flow matched uppipe
Walbro 255 l/hr uprated fuel pump
EcuTek custom remap
Custom Cold air induction
650cc Injectors
Fuel Lab turbo specification fuel pressure regulator with fitting kit & gauge
AFP 321T custom turbocharger with fitting kit
NGK uprated spark plugs 
AVCR boost controller
Optional FMIC
Uprated clutch
NGK racing 8 spark plugs

Note On 06/13 WRX/STI 2.5 short engines the pistons run very tight bore clearances. On Level 4 and above we recommend a forged piston upgrade. The forged piston upgrade is also recommended for level 3 upgrages if used for sustained high speeds or if used regularly on track. 
Level 5 we also recommend steel conrods, ARP head studs and uprated head gaskets.

Our core business is ECU Custom Mapping. We are not here to try and sell you the parts with the biggest profit margin.

Predicted BHP figures are approximations, our section on "rolling roads" explains in some detail why it is impossible to give exact figures.

*PLEASE NOTE - We do not do parts fitting here and therefore do not put complete pricing info on each level.