# Wideband O2

**URL:** <https://forums.speedlife.net/t/wideband-o2/103681>\
**Category:** SON240sx Automotive\
**Created:** [February 10, 2007, 9:23am UTC](https://forums.speedlife.net/t/wideband-o2/103681 "2007-02-10T09:23:06Z")\
**Posts on this page:** 1\
**Showing post:** 12

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**Author:** ![DarkForceJackal](https://avatars.discourse-cdn.com/v4/letter/d/b38774/32.png) [@DarkForceJackal](https://forums.speedlife.net/u/DarkForceJackal)\
**Post date:** [February 12, 2007, 3:58pm UTC](https://forums.speedlife.net/t/wideband-o2/103681/12 "2007-02-12T15:58:12Z")

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> [@I just dynoed my altima](https://forums.speedlife.net/t/i-just-dynoed-my-altima/11321/29):
>
> I would recommend the Zetronics ZT2 or one from PLX. The AEM units some people find to be a little laggy.

I think any widebands “lag” would more likely be from it’s location on the downpipe or in the exhaust system…no? The farther down the exhaust from the turbo, the later you get your reading. Mine is around 45", even more than is needed to be safe and has a 0.5-0.7 second delay or so.

240sxfan, I think birdhou53 is probably mostly referring to N/A engines with the A/F gauge so you’re in the clear. 😉

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