new TT RS owner: exhaust loud on startup?

[keepryt]

I recently bought a 2012 TT RS with sport exhaust, is it normal to be quite loud on startup in the morning for the first minute or so? Only happens on cold start, on a warm start it's much quieter.
I bought it with 2500 miles, so not sure if previous owner modified anything.

here's my new baby:


Randy

[Black BeauTTy]

That increase in sound is normal, you should hear mine first thing in the morning when the valve is open! I know that car too, that was Jenner's. Pretty sure he did the flapper mod so the valve is always open. Maybe he left it that way. Easy enough to check. Just hit the sport button and see if the tone changes. If it doesn't, the flapper mod is in place.

[LongviewTx]

normal

congrats on the car. great looking combo. enjoy the driving.

[Marty]

Welcome! Is that dark tint film on your headlight corners? They yellow parts seemed blackened.

[jmofo]

Nice car! Mine is just off the California coast....almost ready to be delivered!! Waiting SUCKS!!

[YYC Dubber]

perfectly normal. Its the ECU trying to warm up the cats as quickly as possible to cut down on cold start emissions

[keepryt]

Thanks guys. The sport button doesn't change the exhaust note so it must have the flapper mod.

Marty: yes, previous owner tinted the headlight corners and put clear bra on front end and fender flares.

This is my first Audi and I love it! Here are some more photos.

I plan to add the APR stage 1 tune in the spring.

Randy

[southpole12]

Thanks guys. The sport button doesn't change the exhaust note so it must have the flapper mod.

Marty: yes, previous owner tinted the headlight corners and put clear bra on front end and fender flares.

This is my first Audi and I love it! Here are some more photos.

I plan to add the APR stage 1 tune in the spring.

Randy

I am doing the tint on the corners now it looks good!!!

[LongviewTx]

Thanks guys. ...

I plan to add the APR stage 1 tune in the spring.

Randy

That's good because it will probably be available at dealers right about then!

[keepryt]

Is APR partnering with Audi to sell ecu upgrades like Stasis?

[Marty]

Marty: yes, previous owner tinted the headlight corners and put clear bra on front end and fender flares.

Interesting! Is this just a stick-on film over top of the headlights?

[YYC Dubber]

That's good because it will probably be available at dealers right about then!

hmmmmmm?!

spill the beans!!!!

[Black BeauTTy]

I believe that was sarcasm.

[keepryt]

I undid the flapper mod and now it's much quieter on startup and in general.
It would be nice if this mod was cockpit-selectable.

Marty: it appears to be stick-on film cut to size.

Randy

[Black BeauTTy]

I undid the flapper mod and now it's much quieter on startup and in general.
It would be nice if this mod was cockpit-selectable.

Marty: it appears to be stick-on film cut to size.

Randy

Check out the AWE SwitchPath exhaust, the in cockpit switch allows independent and automatic valve actuation seperate and apart for the sport button function.

[LongviewTx]

hmmmmmm?!

spill the beans!!!!

yes, sorry, my prefered second language, sarcasim.

APR has announced two weeks ago that they are shipping the flashing tools to dealers world-wide.

BUT, i am still waiting for my "local" dealer (2.5 hours away) to advise their ability to perform the flash.

[311-in-337]

Can the TTRS be port flashed, or do they have to remove the ECU and crack it open?

[Black BeauTTy]

Can the TTRS be port flashed, or do they have to remove the ECU and crack it open?

Initial requires opening up, subsequent can be port flashed, AFAIK.

[mtbscoTT]

Neither of the two local dealers have the flashing tools here yet either.

[fourtunes]

I undid the flapper mod and now it's much quieter on startup and in general.
It would be nice if this mod was cockpit-selectable.

Marty: it appears to be stick-on film cut to size.

Randy

The flapper mod shouldn't be terribly hard to implement with cockpit controls. More specifically, the flapper will remain open if the connection between the ECU and the valve that controls the vacuum line is interrupted. Some TT-RS owners in the EU found that this cable runs through the trunk, and interrupted it with a remotely operable switch.

[Black BeauTTy]

The flapper mod shouldn't be terribly hard to implement with cockpit controls.

Can't say how hard it was to work out since the experts at AWE did it, but it sure is cool!

[mageus]

Some TT-RS owners in the EU found that this cable runs through the trunk, and interrupted it with a remotely operable switch.

Any references to the post or forum?

If it's a simple high/low control wire, this is a trivial fix, the hardest part being where to mount the switch. However, many things are controlled by digital signals on the CAN bus, which would not take well to a simple switch.

[fourtunes]

It's a simple active-high type signal. I know for a fact that you can just disconnect the wiring connector on the valve to disengage it.

As to references, see this earlier post of mine: http://forums.fourtitude.com/showthr...1#post76774694. It links to a thread on a German forum that describes the process in greater detail (you may need to babel-fish it).