utoypia
Member
Looking for a CAI for a 2015 Passat. Everything I am finding are for 12-14... UG!
2015 Passat cold air intake
- Thread starter utoypia
- Start date
JSWTDI09
Top Post Dawg
Don't waste your money. What makes you believe that your engine needs more (or colder) air? Your car came stock with an excellent CAI. Most aftermarket CAIs are not really CAIs, but warm air intakes because they get their intake air from under the hood. Read this for more info: http://forums.tdiclub.com/showthread.php?t=290373
A dry filter is better than an oiled one, but most aftermarket air filters pass more air because they filter it less. This is one part of your car where the VW engineers have done a very good job in designing an excellent CAI. Why waste hundreds of dollars on an intake that is no better than what you have. You have a turbocharged diesel - this is very different than a normally aspirated gas engine.
Have Fun!
Don
A dry filter is better than an oiled one, but most aftermarket air filters pass more air because they filter it less. This is one part of your car where the VW engineers have done a very good job in designing an excellent CAI. Why waste hundreds of dollars on an intake that is no better than what you have. You have a turbocharged diesel - this is very different than a normally aspirated gas engine.
Have Fun!
Don
oilhammer
Certified Volkswagen Nut & Vendor
Good news! Your car already has one!
IndigoBlueWagon
TDIClub Enthusiast, Principal IDParts, Vendor , w/
And it's a much better one than you can buy in the aftermarket. Aftermarket CAI is a misnomer: they usually draw hot air from the engine compartment. Your car's stock intake takes it from outside, right under the front lip of the hood.
1854sailor
Resident Curmudgeon
utoypia
Member
?? Anything to add?
utoypia
Member
What about a high flow replacement dry filter?
JSWTDI09
Top Post Dawg
A dry filter is better than an oiled one. That said; how do you get more flow? You get more flow either by increasing filter area or by decreasing filtration. If you have ever torn apart a stock air filter ,you will realize that there is LOTS of surface area. Aftermarket air filters flow more air because they filter it less - more small bits of crud get through the filter and into your engine. Before spending lots of money to get more air flow, you should be certain that more air flow is needed.
Your engine has a turbocharger. That turbo can supply all the air you need and lots more. A well designed CAI can have a small effect on the power output of a normally aspirated gasoline engine, but it changes nothing except (perhaps) the noise your engine makes in a Turbo diesel engine. Research shows that replacing he stock intake on a TDI can actually decrease power output. Did you actually read the thread I linked to in post #2. It is full of info about CAIs.
Gasoline engines are throttled by increasing air flow but diesel engines are throttled by fuel. As long as there is enough air to burn the fuel injected, you get more power. Unless your engine is highly modified, the stock CAI is the best one you will find. All aftermarket intakes are very good at only one thing and that is transferring money from your wallet to someone else's.
Have Fun!
Don
IndigoBlueWagon
TDIClub Enthusiast, Principal IDParts, Vendor , w/
As one of our tuners once said to me, "your engine has forced induction. Large orifices are not your friends."