hello I got a 1995 wrx wagon import and I just want to know what bhp would I be ish with z4 ecu td05 turbo 3 inch exhaust turbo back and 5 inch backbox no middle section also panel filter ( I think my wagon standard was the 220 bhp one)

 

240ish but unless you put it on a dyno then any suggestion is pure guess work

 

why I asked is the z4 ecu is from a sti and td05 turbo and they make 271bhp I though maybe the same as I get more boost at 12.9 psi not 10.2 droping to 6.4???

 

just found out my one is 237.9 bhp

 

standard

 

Z4 is from a WRX not a STI and is rated at 260ps but as I said unless you put it on a dyno any figure will be guess work.

Think my 1993 WRX with Z4,manual boost controller,decat made about 270ish bhp.

 

All depends on the mapper, fuel quality, wear on the engine, no two cars will perform the same.

 

Thats if its been done properly, if at all.

 

Take it to a dyno. Not only will you find out the bhp but you'll also know if its running well which is far far more important than how much power its making.

 

yea I think I will book it in and thank you all for the info

 

Is there much point having a backbox with no middle section?

 

lol no middle silencer or baffle then :P