does anyone know how to trick the ecu when runing a downpipe?

[audi_a4_turbo]

does anyone know how to trick the ecu when using a downpipe, or any methods of getting rid of the engine light.

[k0mpresd]

yep. http://audizine.com/forum/search.php aka o2 spacer

[MikTip]

does anyone know how to trick the ecu when using a downpipe, or any methods of getting rid of the engine light.

Yah..Get REVO or APR flashed!

[McKennaS4]

interesting choice of sections to post this question lol this is a new one =P

[ColinGruenfeld]

Lol, he got his question answered... it worked didn't it?

[busakiller]

Yah..Get REVO or APR flashed!

So if you get the o2 APR flash for the test pipe.. Will it have any effect if you but your stock cat/aftermarket HFC back on??? And why is this in the For Sale thread???