Congrats on the new car. I've not seen anyone with that ATP intake......BUT......the 3inch intakes are apparently a bitch to tune for due to the pipe size around the MAF sensor. Most aftermarket intakes for these cars are 2.5-2.75 inch and work fine because the MAF size is same/similar to stock. So make sure you research it carefully before buying it or you might get stuck with an intake that wont work on your car and you will then struggle to sell it.
3.0 inch is also overkill for these cars as the turbo inlet is about 50mm or so and all the intakes taper down anyway.
Have a look at this intake instead would be my suggestion:
http://www.vwwatercooled.com.au/foru...age-82375.html
As for the tune, this is about what you can expect at the wheels with a stage 1 tune:
MK V/VI Golf GTI + SRS-II Special which is probably about 175kw-180kw at the flywheel.
Given the age and kilometers the car has travelled, there are a few things id be checking/replacing before tuning it:
- PCV (Positive crankcase ventilation) valve. These are renown for failing on these motors
- DV (diverter valve). These are also renown for failing on these cars. If your car still has the original one fitted (its attached to the turbo on your particular car and accessable from underneath) id pull it off straight away and grab a new version from DubAddiction for about $90.
- Carbon buildup on the intake and valves. These engines (being direct injection) suffer from carbon buildup which clogs the intake valves. Given yours has travelled 160,000km id say you'd have quite a bit of buildup.
- Ignition coils and spark plugs. Ignition coils are known for failing all the time on these engines and causing misfires.
- Boost leaks from intercooler hoses and vacuum hoses.
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