4PCS M18 * 1,5 CEL Check Engine Licht O2 Sensor Test Rohr Verlängerung Extender Adapter Spacer 45mm

I bought 2 catalysts converters not from the USA & my check Engine came on the first week I had the cats I stalled so I talked to a mechanic & he said to try these 02 spacer Extensions had to remove the the inner flow screen & like magic . My check Engine light been off for 2 weeks now
So I can't believe this little $ 45 for both fix actually works. I'm a believer . Works for me . AAA +++

Good products amazing service

Fast delivery , product as described , would purchase from seller again.

It works like champ install it been couple weeks now that check engine light hasn’t came on great product !! Worth it

M18 x 1.5 O2 Sensor Delete Kit CEL Check Engine Light Spacer Oxygen Sensor Extender With Catalytic Converter