vr6 F1 racing stage 1 or stage 2 clutch kit?

My 99.5 jetta has .205 injectors, custom MR tuning chip, corrado g60 flywheel and vr6 clutch kit. I bought the car like this and these modification were done 2 owners and 80 000+ km ago. The clutch has started slipping in 4th and 5th gear if I floor it around peak torque, even though I can still chirp the tires shifting from 1st to 2nd at WOT. I have started looking into a new clutch kit.

A sachs vr6 oem clutch kit will cost me 217$ shipped at my door, while a F1 racing stage 1 clutch kit will run me 160$ shipped and a f1 racing stage 2 clutch kit at 170$.

The f1 stage 1 is rated at 289 ft lbs of tq while the stage 2 is rated at 345 lbs-ft.

I am very interested in the stage 2 clutch kit, has anyone used it on their tdi?
I have a 3" downpipe and 2.5" exhaust ready to go on aswell and I want a clutch that can handle it under all driving condition (I don't use the car on a track), for a while. I am also on a tight budget since I need to replace shocks, windshield, brakes, and much more...

Would you recomend using a good quality oem vr6 replacement clutch and flywheel for around 220$ or a f1 racing stage 1 (160$) or stage 2 (170$) for my setup and driving purposes?

thanks in advance!

I'd go with something tried and true like the SBC Stage II Endurance and never worry about your clutch again.

There is nothing worse than having to go back in and replace a clutch that you thought would hold power, but didn't.

Do this right the first time, even if it takes $ away from other mods.