Dump Pipe

[maximumrpm]

I am getting a friend of mine to make me up a 3 1/2 inch dump pipe off the turbo (stock turbo) of my r33 gtst. I have noticed that it has a sensor on the stock pipe and have noticed that some after market dump pipes dont accomodate this sensor. My question is, is this sensor needed or can it be disconnected? cheers

[raist60]

Yes you need to keep your oxygen sensor otherwise the car has no idea what to do in closed loop mode.

Second thing is i dont know how you gonna make a 3 1/2inch pipe fit onto a standard turbo flange 3 inch only just fits with a bit of ****ing around. Good luck dude!

[maximumrpm]

cheers for the help champ...it will crimpped at the end to fit the flange

[akeenan]

there is a member on these forums selling cheap dump/front pipes with the sensor hole avaliable. you should look into this

[Guest INASNT]

u can just drill and tap a hole and place the oxygen sensor in their on the new dump.

[raist60]

you cant "tap" a hole in an exhaust. You ahve to weld a thread onto it.

[akeenan]

:confused: , anything can be done if done right! id rather just buy one with the hole already there.

[raist60]

Im saying that with a 2 millimetre piece of steel you have nothing to actually TAP into, they get a premade thread and weld it onto the side of the pipe. Its kinda just like a nut only its normally completely round. If you catch my drift.

Ah well...