Ive actually been doing some research as to what would fit our cars from DSM mainly because the turbo setup is almost identical, especially the 2g since they both shared the same turbo. A test pipe is an excellent mod for the money, it does make the car very loud and people behind you will smell rotten egg with no cat but it definitely improves the low-end spool up. Since I dont have my MSP yet I cant say for sure but if the DSM exhaust is similar to ours then it may be beneficial to do some more searching on this.
MIKE