How many bungs on STI8 downpipe?
 

Hi,

I have an 05 STI8 PPP for which I'm about to install the Innovate LC-1 WB sensor kit. Thought it prudent after I went at the induction system with a dremel and a lump hammer... Want to see to what extent it's leaning - if any.

Before I start pulling things to pieces does anyone happen to know if the STI8 downpipe has an unused bung (before the cat)? Be nice if I don't have to remove the stock sensor.

And I thought free mods wouldn't work....

BTW Anyone got a link to the "FPR Crush Mod"? Always looking for new things to hammer...

if you have a twin-scroll turbo setup:
the DP has 2 O2 sensors; One pre-cat and one post-cat. the Pre-cat one is important for the ECU to trim fuel and whatnot, It shouldn't be removed. the rear O2 is to check for proper Cat function and is not as critical to the safe running of the engine.