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They'll see you have a custom exhaust anyway? Andy change to the cats / pipe sections or back boxes would surely invalidate in the same way because they would be OEM parts? I see now what you mean in your original explanation, I misread it. The headers are bolted to the one piece exhaust system whi...

It is a one piece system IIRC so most cut their exhausts, that's what happened with mine. That said it was not welded together with the OEM section, it is clamped so is relatively easy to remove and replace with the OEM exhaust if it ever comes to need that. So from the branches/headers back it's a...

Hi All. I am looking at getting a custom made exhaust system for my car and my question is, can the stock exhaust be "unbolted" from the headers back. I dont want to have to cut out the old ones and weld in the new ones. Also my car is still under a maintenance plan and would be easy just to bolt on...

Why would it knock back timing on top end ? Wouldnt it pull back under 5000 rpm as now its sucking in hot air. Top end it should be open afaik. Not so much demand on timing at lower revs, needs to be advanced as far as it feels safe to get max efficiency at higher revs, hot air/bad fuel will peg th...

I refer back to a post i made a few weeks ago. My flap is sticking in the open position. How bad is this to leave it like that ? Sorry I didn't reply, it wont do any harm, just might knock the timing back a bit at the top end. As for it sticking, undo the vac pipe and see if it still sticks, if it ...

Thanks for that DIY. Appreciate it.

I refer back to a post i made a few weeks ago. My flap is sticking in the open position. How bad is this to leave it like that ?

Although in saying that whenever i start the VCDS test the flap is closed. So not sure why it isnt closing during the test.

Sport button won't make a difference to oil temps.

Mobil1 0w40 IIRC

Averages between 95 and 110 depending on conditions and how hard i drive. In South Africa in the summer temps get up to 35 celcius.

neckarsulm wrote:http://www.rs246.com/index.php?name=PNp ... highlight=

My own thread but even I found it interesting to reread it!

Thanks for that. Very interesting so it seems the flap staying open isnt good at all. How did you fix yours ? I suspect the spring on the flap might be screwed

Hi I used VCDS last night to test and my airbox and manifold flaps and the manifold flaps are working 100%. However the airbox flap opens but doesnt close. I can hear it trying to close however that doesnt happen. Should it be closing when i use VCDS ? It was definetely closed when i started the tes...

Hi I did this test yesterday on my RS4 and the intake flap works 100%. However the airbox flap opens, but doesnt close. I can feel it trying to close however it doesnt close at all. Should i spray some WD40 onto it to try and lube it up a bit ? When i started the test it was definetely closed though.

stock car (???) I'll explain why I think it may not be... 3 guys in it 95 oct 85F >17 sec in 3rd gear...(actually he let off at 7700, call it 18 sec) a concerned owner wondered if there was an issue...he sent me his vagcom charts seems terrible doesn't it? timing was perfect close to 30 deg under h...

sonny wrote:Sound change yes, Power gains was not mesured.

Seat of your pants feeling ?

sonny wrote:I run a trial where I had the OEM exhaust linked up with 200cell Millteks and MRC remap..worked and sounded fine. cant see that being a problem.

You may get EML flashing due to the warm up cats not being in place.

Thanks. Was there any power gains/sound change?

If you do go cat back, then go non resonated to get the best sound gains. As you will see from Brooner's thread 'MRC Magic' a map will get you gains and a cat back and map will improve on that. The real gains are to be had are remapping a NA car with cats removed or sports cats however given VCA on...