I presently have a stage3 kit on my '031k with the hotbodies undertail exhaust and -1 front. I have 169rwhp but 2 light 140 lbs and less guys still pull on me in 3rd gear and higher. I am finally thinking about getting rid of the undertail exhaust. What would you guys recommend for the exhaust as well? I hear I will be better off going with a slip on. If so what do you recommend? I am not adding NOS and no more engine work. What can I do to get a few more ponies.