Originally Posted by JPM398

I'm still kind of a noob to TC too (had my XI Sport about 3 months now) so take my advice FWIW but here's what I think, based on my experience so far:

Body: depends on the rules of the class you want to run, but usually a 190mm race body is what everyone runs (I'm am currently using the Protoform Mazda6 GX)

Parts: Get spare front & rear arms, c-hubs, uprights, and knuckles for sure. Those are what I was breaking most often. The only hopups I've added so far are aluminum wheel hexes and sway bars, but I think a lot of guys have switched to aluminum bulkheads as well because of too much flex in the plastic ones. The SSK driveshafts have also been recommended by some.

Tires: No idea what is used at TQ. The track I race at requires a spec tire, so you might ask TQ what spec tire they require (IF they require one)

Hopefully that was helpful for you, but the more experienced guys might have some better advice.