I own an 8-year old 1.5GLi A/B Automatic (against my will), and it has been a real bane ever since I had it. Problem here and there, but I'm trying my hardest to actually live with it......

I need some advice. The FC of this car is absurdly horrible, and I'd be blessed if I can even obtain 300km on a full tank. To top it all off, it's so bloody sluggish and even a sloth can take it on anyday. What should I do to increase it's performance and at the same time, reduce it's fuel consumption? And one n00b question: does installing a custom air filter and a slightly larger exhaust increase performance without sacrificing FC? Many thanks in advance.

EDIT: typo

This post has been edited by rcky: Jun 14 2006, 11:25 PM

I see...but considering that more air is let in, does that mean that more fuel will be used for combustion? As for the exhaust, I'd actually like a little more noise, though not as much as those sonic boom ricers.

I'd also like to enquire, what does 4-2-1 denote? My guess is that 4 is the number of pipes connected to the engine, 2 is the number of pipes (located at the undercarriage) connected to the 4 pipes from the engine, and 1 is the number of muffler attached. Is that more or less correct? And again, will my FC be affected negatively by these add-ons?

I'm using an AT, so will I see marginal performance gains if I install the filter and change the exhaust? How do I tweak the transmission to increase performance, or do I have to change it completely?

Thanks for the inaugural reply.

So that means I can't do anything about my oh-so-screwy transmission right now? Oh man.....I don't wanna go through something so tiring as having to swap the transmission. But that aside, how much would it cost to replace it? I'd rather not pay more than 1.5K to do that.