My Mk4 Golf Gti 2.0 - simple mod's ??

[Sonic B0000M]

But it's a lot faster 

[HJGTI]

to be fair tho i did have a 1.8t in my audi tt and never game me any trouble at all in 2yrs of driving , i have vcds so can check for codes and things , and secondly its a 2nd car so if needed to i can afford to have it off the road for a while to have work carried out