Are there any considerations when replacing the standard WRX engine with an STI? The current engines need a new crankshaft, conrods and who knows what else is in there that's gone bang. So I thought I'd cut my losses and replace the engine, the obvious thought was buying a reconditioned STI engine for the instant power increase.

Any advice - is this more work than initially meets the eye?

Cheers in advance.

 

You will probably need a remap to take advantage of the VF** turbo and the Camshafts on the STi engine.

 

its not as simple as just getting an sti engine and chucking it in as i found with my project , you need to make sure its the right phase engine i.e 1,1.5,2,3 ,if you put a sti engine in with all the ancillaries of a wrx it will be the same power as a wrx cause of the level of boost,ecu,injectors (if there diffrent ) basically if you put an sti engine in you need all the supporting sti parts to make it the same power !!!! i have gone for a wrx sti ra engine which is the strongest subaru produced as its the closed deck block ! . have a search o hear plenty of threads all about engine changes .

 

Makes sense - thanks.
Any recommended places to get a reconditioned engine

 

I saw a 2007 2.5 wrx engine get no bids on ebay yesterday £2500 no reserve.

 

blimey if you want mega power and have the cash thats wat you need

 

Does this look like good value? here just under £3k inc vat fitted.

 

you will need a sutable turbo so thats pretty much anoutha 1k and a fair few other things id imagine mate .good but its a very exspencive route to go down but will have the highest gains.