i think its air flow/displacement issue.
Another thing I just thought of that tdiclub just can't stop arguing about, cone filters... There are a million threads of people hating on them. I prefer the stock look but, I really don't see anything wrong with cones. I understand that there are no power gains but they get the job done and are easier to get into a car after a swap than cutting up a few air boxes to make one fit...
But then you have to fabricate a box around them for them to work right, so isn't that a wash?
Easier to fabricate a thin sheet metal box than form plastic lol.
Depends on the filter, some people swear on their entire family's graves that a K&N is the best thing since electricity.
I've had a couple cone filters in my TDIs when I bought those cars and hated them. Those were so stupid loud. Stock will flow plenty enough and is quiet.
I can not attribute added engine bay noise to my cone filtet. It is loud as all hell up there regardless. On both the idi and tdi. (Both with cone). They were both retrofitted engines with nl useable stock box.
Another thing I just thought of that tdiclub just can't stop arguing about, cone filters... There are a million threads of people hating on them. I prefer the stock look but, I really don't see anything wrong with cones. I understand that there are no power gains but they get the job done and are easier to get into a car after a swap than cutting up a few air boxes to make one fit...
Wouldn't a CAI be useless on any forced induction engine with an intercooler?
The less hot air the better
yes a cold air intake is a good thing for any internal combustion engine. The only issue I see with the cone filters is the way people install them. The stock air box does a great service protecting from engine heat. The cone filters flow so well it is still an improvement over the stock air filter usually. This is what I did to have the under hood heat somewhat stopped. It is just a lexan box around the cone filter in the bottom left corner.