Just bought......A 3" system! ***fitted***

[mar_k]

I'd like to voice my concern over an issue I have with these exhausts.
Its for those of you who are running with the post cat Lamda. Due to large diameter of the pipe work the lamda can no longer be fitted in the original position and only be fitted buuy turning the pipe so the sensor sits at the lower part of the pipe which causes it to sit quite low.
My friend caught the Lamda on a speed hump which caused the wires to be pulled out of it, He didn't notice this at the time and resulted in a blown ECU as the wires shorted out. When the sensor wiring shorts it causes loss of throttle on the fly by wire system and the only fix is a replacement ECU.
Now fixed with a recoded replacement ECU and a new lamda fitted, 60 miles on and the Lamda has been damaged again. Now I'm sure those of you who do not have to negotiate speed bumps often will not have a problem but for those of you who do, Please take care and ensure you place atleast 2 wheels on the bump to avoid catching the sensor.
My friends car is due to have a stage 2 remap in the near future and he will be looking into having the post cat sensor mapped out so a blanking plug can be fitted in its place.

[AaronGS]

I had a 3" exhaust, ran fairly low and encountered a lot of large speed bumps. There must be a better way to position the probe.
Or was I just incedibly lucky?
Wazzer how is yours fitted and can you compare it to the on eon the car Russ now has?
Is it the same positioning as yours? May be of help to others?

[mar_k]

we tried turning the pipe all ways and it fouls the underside of the car in all positions other than having the lamda pointing slightly downwards,

[Granta Gti]

I am running this and had not problems with the post cat..

[mar_k]

I am running this and had not problems with the post cat..

In what position is your Lambda fitted?

[Granta Gti]

I think it pops out to the side, defo not pointing down. The only issue I have is it rubs on the fuel tank heat shield bloody annoying. 

[mar_k]

Yours sounds like its in the same place, It sort of pops out the side but slightly downwards,
Its not protected like the original position of the sensor was.

[rio_gti]

my old dp was the same but never had a problem, but then again im standard hight!!!

[Wazzzer]

Aaron I'll have a good look when I pop over there this week. Bizarrely we were on the same boat on the way home yesterday lol

[Prawny]

My friends car is due to have a stage 2 remap in the near future and he will be looking into having the post cat sensor mapped out so a blanking plug can be fitted in its place.

Just to let you know, this will not work at all I'm afraid.

When the post cat lamda is 'mapped out', it's not actually mapped out at all, but simple the threshold value at which it'll trigger a CEL is raised to a point where it is no longer a worry.

The actual sensor itself must remain in position and fully working, or you will still have problems.