My car's a 2002 (very late) 
mk1 Leon Cupra
I think my engine code is AUQ
So if the Hybrid is going to cost in excess of 4K, is it not work getting a K04, Inlet to accommodate and uprated fuel injectors?
Confused and stuck, didn't realise there was very little tuning gains on these engines in comparison to say Jap Turbo's, a starlet can hit 200+ bhp on a TD04 bolt-on and minor tweaks, I've noticed £ per Bhp, it's expensive tuning 1.8T's,  Not taking anything away from this car, it's a completely different type of car, less raw more refined, still I like the car and want to stick to it.
How much can the 1.8T AUQ lump handle on standard internals?
Has anyone used a T3/T4 turbo with their Leon Cupra's ? I've seen T3/T4 manifolds for the 1.8T engines:
http://cgi.ebay.co.uk/SEAT-LEON-99-...arts_Vehicles_CarParts_SM&hash=item1c0e4398dd
or a complete kit like:
http://cgi.ebay.com/ebaymotors/VW-9...ptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories
What are the results like?
Well I have seen LCR's price ranges, and tbh a good one is 6K+ the rest are battered abused rides.  I bought mine as a wild-card, I was looking for a well set-up Glanza V so I done limited research, i.e. common problems and faults to look for, never researched the tuning potential (not saying there ain't any)