Hi there and welcome....
I expect you will be visiting this part of the forum quiet regularly then-
A3/S3 Forum (8L Chassis)
There are lots of useful sections in the stickies concerning maintenance and performance enhancing modifications for your 1.8t BAM.
Seems to be quiet a few Seat owners coming on here now and taking a back seat
2000 S3 APY
18" BBS RSII with Michelin PS3s, 20mm H&R adapters, Relentless 3" DP and Sports cat, B5 V1 induction kit, cone filter+heat shield, Forge 007P, Awesome GTI SMF, AP coilovers, Facelift rear lights, Full Powerflex poly bush kit, R32 Rear ARB, SAI delete, N249 by-pass, Upgraded Engine mounts with Polytek, Stage 1 CC at Badger 5.