As in title just bought a totally standard 2002 STI & would like it to run around 350 BHP. Before I take it to jolly green monster for remap, am I right in thinking I'll only need 1) fuel pump (warlbro 255)
2) De-cat 3" or sports cat
Also I've got a de-cat down pipe & full 3" exhaust off a classic in my garage - will that fit??

 

The hangers on the back box are different I think but apart from that the exhaust will fit.

You should see somewhere around 330bhp, you might want to add a 3 port boost solenoid to your list.

But i'd speak to simon if I were you then you'll get a better idea of what to expect and he'll have an idea exactly what it is your after re drivability.

 

I'd go with your other threads and 350 as a target, 351 is a bit optimistic IMO

 

350 on a vf35 is possible, but dont expect it, 330 is prob nearer the mark, anythign mroe is a bonus.

to get a higher figure I've seen the results of some mappers go too aggressive with timing and cause det without thinking about the consiquences.

 

You'll want to get the 35 ported to stop the boost creep, also will help get you up in better bhp figures and more safely.

 

i hit 350 on rcms rollers with a dynamix remap.

3 port boost solenoid.
3 inch decat
induction system
front mounted intercooler.

 

Mine hit 351 at power station and 349 on a dyno hub.... With 80mm rcm induction 3" full exhaust and decat and the Walbro pump....remapped by bob Rawle

 

On what turbo?

 

standard vf35

 

Definitely recommend porting if running a decat

 

yup me too.
mine was just mapped to get the car running correctly befoire more mods.
the fmic is not needed at that power

 

nice.

 

I also have a bug STI JDM mine has a
blitz full system
panel filter
3 port
And engine mapper has mapped it to 337bhp 340bhp on the rollers ;-)

 

No proper mappers go around causing det without thinking of the consequences
Yes, there are a band of so called (Professional) mappers running around mapping peoples Imprezas with little or no engineering background and certainly no understanding of how the OEM ecu works.
I was subjected to one of these maps just the other day, shocking

In the right hands and on the right supporting modifications, the VF35 is plenty capable of 350bhp and safely too.

 

agree totaly

but then also seen some highly raited so called pro mappers make a right mess of some cars.