All Things Mk5 > Performance Modifications

3" downpipe with stage 1 problems?

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alexperkins:
Milltek downpipe and a 3" to 2.5" convertor and your sorted  :happy2:

I get no emissions lights on mine either!

keano:
I may have a decat at the moment (but it doesn't include the PRE-cat) and I don't have a light.  :evilgrin:

Do you have a sports cat in your system?

alexperkins:
So you may have a decat downpipe or was the cat removed further down and the precat left in place?

Aye i do. 200cell  :happy2:

keano:
The main cat may have been was removed and replaced with a straight pipe.

But i believe the pre-cat is right next to the turbo right? (which is still there)

alexperkins:
Correct

So either a straight through from the downpipe to the center, or replace the downpipe with a 100 cell sports cat one, which is as good as a decat anyway on performance measures

Or a 200cell normal one for MOT passing exhaust emmissions  :happy2:

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