I have mods, i have drop in filter, UICP, inlet tube, and a test pipe. Car has a lot more TQ, I swear it's breaking the tires loose in first gear now, but still lacks the upper RPM power. Just falls flat on it's face after 2nd gear. I too am getting a tune with said mods, and have been told the stock clutch will hold it no problem (if it's in good shape). People upgrade when they're over 350wtq, but are also the people that launch their cars. You're not going to hurt anything getting on it, it's really just launching and slamming gears, stay away from that and you'll be A-ok. I don't think there's a day that has gone by, that i haven't beaten on the car through 2-3 gears. Super excited about taking it the Auto-x track by me. That's where it'll shine, especially all that torque, finally put it to good use.
And it should make about 270-290whp with your mods and a tune. These things really wake up with tunes. I'm stoked about getting mine done.