Why would you want to cut the baffles out? That motor has a tuned exhaust that is quite efficient for what it is. Taking the exhaust baffles out would actually reduce your power output.
Also, is this a short shaft (15") or long shaft (20") model? If it's the long shaft model, the gearing really isn't conducive to allow minor tweaks to translate to higher performance. The 15-inch might, as it is also generally used on smaller, lighter weight hulls that repond well to minor motor improvements. The 15 uses a modified 2-cylinder gear foot with a smaller profile and 15:28 gear ratio (vs. 12:29 on the 20). That allows for more aggressive propeller selection.
Bottom line is, what are you attempting to accomplish? If you just want more power for the family or fishing boat, you'd be much better off getting a bigger motor. If you have a small 13-foot sport boat that you're trying to wring a bit more top end out, you might be better served working on set-up and props before you try modding the motor.
