i currently have a 2004 wrx impreza with induction kit, decat centre pipe, sports cat downpipe,upgraded top mount intercooler and walbro fuel pump but i have just pruchased a vf 34 turbo, sti pink fuel injectors and decat uppipe, my question is once these have been fitted and remapped will my gearbox and clutch be able to handle the power as im aiming for about 325bhp?my car has currently done 50000 miles.

 

If you're making 325bhp atw, your gearbox will have a limited life span. Generally 300+ on the WRX 5-speed is gearbox death territory, but then, it all depends on how you drive.

 

I will have the same set up just ordered vf34 and pump, all the rest as been maped in. Once i fit the new bits i was hoping for around 300 horses. I have a my00, but when bored of the 300 i will be looking at mods for more. I no i will need new gear box AGAIN soon when new mods fitted and maped. What gear box should i go for or should i just upgrade the internals.

 

gear box question