For 6mt sr20ve 20v setup in a sentra is fun but you need to solve for a few things if want to race with those late model street car on the road, hehe
1)Soft engine mounting problem ( find oem hard mounts)
2)Soft suspension problem (aside spring and shock, get hard bushing , b13 rear side got one big arm can not use hardbush, or can break it, u need to study it)
3) soft chassis problem ( need some useful bar to strengthen up abit)
4) Get better brake system
At the end, worth or not to spend that much money, 8 years ago I'm still hot headed to mod here mod there, 8 years later, feeling kind of wasted to do such things.
But it does vastly improve your knowledge on car if you like it and mod it with hobby mentality. Nothing wrong with that. DSLR enthusiast probably can buy bmw with their investment on those lens and gear.
1) soft engine mount problem - so far mine doesn't have problem.
2) soft suspension - yup, now boat feeling. Probably use other shocks will improve?
3) soft chassis problem - yeah can feel a bit.
4) better brake system - upgraded.