2001 Corolla LE AT

Can anyone tell me if there is any difference between the 1998-2000 and the 2001-2002 Toyota Corolla engines? Specifically between LE models? I didn't find anything online indicating any differences aside from the asthetic changes made for the 2001 model...

Also, I am looking for any lip kits for my gen. I saw somewhere a TRD lip kit but have since been unable to find it again.

One last thing, anyone heard of or dealt with turbokits.com? Supposedly they have a TSI Turbo Kit for my car...
$3449
TSI Extreme Turbo kit
Garrett T28 Dual ball bearing Turbo
Wastegate
Cast exhaust manifold
Chrome heat shield
Downpipe w/ gasket
Map unit
TSI BOV
TSI high flow front-mount IC
Polished Aluminum IC piping
SS braided lines for water cooling
SS braided lines for oil
Return hose/fittings for oil to pan
All hoses & clamps
All necessary hardware & fittings
Install instructions

Any thoughts regarding them or the TSI kits?

Thanks in advance,
ROKnight

I don't have it personally, but I've heard the kit from turbokits.com doesn't fit on Corollas. Just what I've heard, so look into it more, but be careful.