Air intake upgrade

[dirkme]

Hi guys,

Which air intake upgrade do you recommend for a Jetta 4 TDI?
How much of a difference does it make?
Do I need to retune the car after its done?

Thanks

[Rommies]

Does a intake alone make any difference in power? i dont think so...dunno...? maybe responsiveness?

maybe with retune and intercooler upgrade I would say

[ryanrich]

Not worth it on a TDI in my opinion.

[Wazza]

Not worth it on a TDI in my opinion.

+1 rather do DP makes a bigger diffs on diesels than intake

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[BIGMIG]

+1 rather do DP makes a bigger diffs on diesels than intake

Wasting time on that. Rather a mufflerectomy or remove just the cat which could even be clogged up. Doing this will allow more gas to escape and bring down EGT'S.

Just stick to the OEM filter. It does a much better job at filtering the air which in turn helps your turbo and injectors not clogging up with very fine dust particles. And if you did do some sort of intake system then you will not need to have a retune the ECU will adapt. If you can try fit an FMIC will hold the power for longer and you will not get heat soak. A slight tweak with the map is advised after fitting an FMIC.

[VELO-GP]

FMIC
DP + ZORST - POWER PIPES HAS AN AWESOME COMBO FOR TDI'S
SOFTWARE - DIMSPORT

Leave your airbox stock

[dirkme]

I notice that the standard inlet hole in the airbox is smaller than then outlet one going to the MAF. Would cutting this hole larger make any difference, since then more air can enter?