lavoy

iTrader: (2)

My turbo kit was made by 417 motorsports , both exhaust manifolds have o2 bungs but the single turbo down pipe dont. I was always told that the o2 should be after the turbo, but i cant see how such a prestigious company like 417 would make a error like that. i would like to hear any information you may have on this. I mounted the AEM wide band in the passenger side manifold just before the turbo for now.

black98ws6ta

iTrader: (77)

Should be in the downpipe, the pressure and heat will skew the readings and cut down on sensor life.

MUSTANGBRKR02

iTrader: (91)

Those two ports should be for your front o2's and the WB should be after the turbo. There is a sticky for placement on it i believe.

smokinHawk

iTrader: (48)

the narrow bands o2 (car's front o2 sensors) should be near the collectors, preturbo.
an aftermarket wideband o2 should be in the downpipe about 6-8" after the turbo, with the tip pointed down so water does not collect on it when off.