Well I ahve an 04 STI with 130K on it. i put closes to 1000km on it each weeek all year long, on pavement, gravel, rain ,snow etc. My car seems slower than when I first had it. I have maintained the car to the best of my ability. I have had minor problems such as: 1/2 axle replacement, brake pads, numerous oil changes, leaking BOV, get error codes below 2800 rpm when driving any distance over 30 km.,turbo inlet tube woes. Nothing major just normal wear and trear I figure.
I want my car to be quicker, what can I do with very limited resources, not only financially but I do not live in hot bed of tuning and do not know of any tuners within 2 hours of where I live. Do turbos get weaker and need rebuilds? at what milage should this be done? Should I be looking at an engine rebuild? Many questions I have so feel free to fire off more advice than I asked for as it all is appreciated if not used now I'll remember it for later. thanks in advance to all who will reply.