Opel Insignia OPC 2.8 V6T decat downpipe exhaust sound 

Hi. It's like in the description: downpipe, decat, the rest is stock

@@M4tInhi,did you felt any difference after this “operation”,and second question: did was nesecery deleting check engine light and any of this problems after decat?

@@nikolasliven96 hi. No significant changes, maybe a little bit more responsiveness, but can be placebo as well. Definitely the sound is more aggressive and louder. Check engine pops up everytime I leave city any maintain higher speed for a longer time. I need to remove it in future, but I plan to go with stage 1 as well, so I'll do both things then

@@M4tInthanks for the answer! I did stage 1 but only this,and i search for more information about decat and downpipe and does it have any diference after that.