Js racing 70rr

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Aug 13, 2019 | 07:33 PM

Cla$$y

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Js racing 70rr

I’ve got the exhaust on ap1 and now an AEM wideband. I don’t want to drill into exhaust to accompany both the secondary o2 sensor and wideband bungs. What options do i have?

yes I have searched for days

Aug 13, 2019 | 08:08 PM

clubhopper

Joined: Apr 2010

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From: Pluto aka. Stoney Creek, ON

Quote:

Originally Posted by Cla$$y

Wideband goes before the Cat anyways, so you are looking at a test pipe or hfc with bung on the side facing the header

you don’t drill into your catback for a wideband

Aug 13, 2019 | 08:17 PM

Cla$$y

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The Js is a headerback with one bung pre welded in

Aug 14, 2019 | 03:34 AM

clubhopper

Joined: Apr 2010

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From: Pluto aka. Stoney Creek, ON

Quote:

Originally Posted by Cla$$y

The Js is a headerback with one bung pre welded in

Interesting. Misread the exhaust type. Looks like you’ll have to drill daddy-o.

Aug 14, 2019 | 06:13 AM

flanders

Joined: Aug 2013

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From: Sweden

Are you on stock ecu?
Otherwise just ditch the secondary O2 sensor, since you don't have a cat it's pretty much useless anyways.

Aug 14, 2019 | 06:46 AM

Cla$$y

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Yes stock ecu. Can I just drill a pinhole in the stock header(which I plan to upgrade later) and trick the ecu into reading a leaner air flow by using the Weldless AEM bung clamp?