Ive decided to stick with the 2.0liters of displacement and shoot for 350-450whp.

I know this will be hard but im curious to see who has done this.

Also, Does anyone on here have a APS 3.5" Turbo back exhaust on there car? How does it sound? Is it worth the money?

How much HP will a Walbro 255L/HR Fuel Pump suport?

How many CC injectors will i need to suport 450whp? Would 550cc STi injectors be sufficient or would i need larger ones?

Will a Perrin fuel rale kit solve the lean problem on Cyl. #3?

What is the best set of headers to put on the WRX?

What is the most efficient intake for the WRX?

Would APS Tumbler Delete/Aux Injector Manifold Housing WRX be a good thing to have when trying to acheive 450whp?

What other vitral components can you think of that i will need to scheive my goal?

Thanks for the help.

Tim

 

I have had experance with building motors before. I built up my cousinds 4G63 in his Eclipse. My dads 1982 320i, i turboed, and made into a 12 second car
Sisters accord, my old prelude, and soon i will do the datsun.

But the reason i ask so many (stupid) questions is because i have never worked on a Subaru, and dont know the ins and outs of the Subaru tech stuff.

I dont want to do anything HUGE to make the power i want. By HUGE i mean boring, or stroking. Or modding the block much. But if i really do need to then i will. I have a good machine shop. Does alot of performance car.