HEY<br><br>A company called XS Engineering as developed a prototype turbo that is installed on the sport compact car magazine project car.It fits and has a huge intercooler.They haven't released performance figures but it is going to be sold for around $8,000 US.(It had better be good for that price) 11.5:1 compression makes a turbo hard to handle on a stock bottom end. Low compression pistons are available from TRD.The stock pistons will handle 7.5 psi boost MAX!!! The stock XRS matrix 6 speed was tested by sport compact car mag before modification. It ran 8.9 zero to sixty or 0-100kmh for us Canadians. A real quick fix for the acceleration is to add smaller wheels and tires. The Celica GTS runs 7.1 zero to sixty because it comes with 15" wheels stock. The gear ratio is bad in the Celica to avoid an early 2-3 shift. The 2-3 shift in most cars is about 62-63 mph to avoid slowing 0-60 times. The 16" and 17" rims and tires causes an even worse gear ratio. If you want to go fast in a Matrix the #1 change you should make is 15" rims (looks crappy but will pick up about 1.8 seconds 0-60) Try that much change with engine parts you would need another 75-100 hp. I would put up with going slow to keep the 17's<br><br>Matrix_XRS