Hi......

I have got a 1995 wrx running 280bhp its got a td05 full system from down pipe back thats about it.

so if anyone has got anything they can help me whith then thanks...

Davie....

 

Next step would be 550cc injectors and a MY97/98 2.4bar MAP sensor (if you have the ESL Live or Simtek). If you have an Apexi PFC, then you'll need it's own bespoke 3bar MAP sensor (avaiable in a complete Apexi boost control kit which also includes its own 3-port BCS).

Then you'll be able to run the 550s mapped at at least 1.35bar boost pressure, which will easily get you over the 300bhp mark - prob 320-330.

If you have deeper pockets, then fork out for a Hybrid GT Spec FMIC and large cone filter for even more airflow/safer runniing intake temps - heatsoak issues of the std TMIC will be done away with - for even more power e.g. this side of 350bhp and similar torque. I would personally stop at about 330bhp/330lb ft, for fear of the torque trashing your 13+ year-old gearbox!