New Dubber
Hi I have a 2012 GTI with BSR stage 1 tune, which gives plenty more punch to an already nice setup. Exhaust is stock as is the intake and filter. I'm seeking advice on whether a catted 3inch downpipe would work nicely with stock catback exhaust and BSR stage 1 tune? I like the quietness of the stock catback. A little more grumble would be ok, but I'm a older guy who leans toward a more refined, rather than a rorty sound. I'd appreciate input from those with more experience.
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Volkswagen Enthusiast
A downpipe on a stock cat back gives off a nicer deeper note and makes dsg farts a lot more noticeable ... I don't know about bsr tunes but most other tunes will need an upgrade to stage 2 software as you may encounter a CEL with the down pipe installed
Polo GTI
T-Roc R
Tiguan R
New Dubber
Thanks for reply. BSR apparently do not have a stage 2 and anyway stage 1 and bit with downpipe is enough extra grunt for me, otherwise I'm upgrading brakes etc. What is that causes the CEL with a chsnge to a 3 inch downpipe? I'm not across this stuff but I hoped with a catted downpipe and O2 sensors connected up as per stock I might escape this issue?
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Volkswagen Fan
It's an oxygen sensor that triggers the CEL. You can get a spacer for this O2 Sensor Spacer - 42 Draft Designs
MkVI Golf GTI
New Dubber
Great thanks for the link. I'm starting to get the picture of how to go about it. Can anyone tell me if my CCZB engine has a different flange at the turbo from the CCTA and CBFA motors? I like to avoid ordering the wrong pipe.
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Super Moderator
VWwA Super Moderator
They are all the same - as long as you buy a Mk6 GTI specific downpipe you will be fine.Originally Posted by stevarm42
New Dubber
Great thanks mate
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