How can I tell what the Former Owner did?

I've had my 2013 Passat SE for 3 months now. Everytime I turn around I see something that's been changed.
So Far:
Drilled and Slotted rotors all the way around.
Aftermarket airbox. Seems like bottom is still oem, but top is aluminium and has aftermarket filter.
Cat-Back exhaust.
How would I find out if this car has had any tuning done?

well... do you have a DPF?

Since it's still mud season I haven't ventured under the car.

I believe I do as the signs of the car doing regens is there.

plupien79 said:

Since it's still mud season I haven't ventured under the car.

I believe I do as the signs of the car doing regens is there.

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You don't have to venture under the car............it is between the engine and the firewall. You can see it with the hood open.

sounds like a good previous owner, as long as it doesn't have a K&N filter

Why in the world would somebody purchase a high fuel economy family car and do performance mods?

Reminds me of the time I was in an auto parts store and some idiot came in wanting to know how to make his Geo Metro fast. Umm, jack up the fuel cap and put a Corvette under it and then replace the fuel cap?

smoav8r said:

Why in the world would somebody purchase a high fuel economy family car and do performance mods?

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Because after my Malone stage 2 tune, it's a pretty fun car to drive. And if I ease off, I can still go 65mph and get 52-54mpg all day long.

hawkz said:

Because after my Malone stage 2 tune, it's a pretty fun car to drive. And if I ease off, I can still go 65mph and get 52-54mpg all day long.

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I average 48.6 with stage 3.5. if I go easy on it, I can get 55+ on a tank with 75% highway.

I'm not opposed to a tune. I just want to know where my car is.

It does appear that the first half of the exhaust is as it was from the factory.

I good a good read on the previous owner of an older car when i found a large stash of single serving hustler lube packs under the seat.

Ill take performance mods any day over having to steam clean the interior