Cvf down pipe.

[Sidwin]

have a cobbs access port. Does the Cvf cat bypass down pipe cause a CEL? I haven’t seen much people talk about it. I plan on adding the fmic cvf soon and saw they had the down pipe too. I used many down pipe with my turbo cars and they make a world of difference. Any one running one? Good bad ?

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[Xtremevol]

I don't think the downpipe is released yet, but I am interested in it too.

 

[OGKC]

No Cel from it on mine! The defowlers work well.

 

[Blackbetty406]

No Cel from it on mine! The defowlers work well.

Which defowlers did you go with? and just wanna make sure this is catLESS downpipes right?

 

[OGKC]

CVFab catted down pipes. Defowlers came with them.

 

[RoastinF150]

Just turn off the rear O2 codes (quite a bit of codes) and eliminate anything regarding fuel and/or spark corrections for catalyst light off.

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