Catback + test pipe combo check engine light?
 

I was wondering if i would have any problems with check engine light or any other problems with a invidia n1 catback exhaust + invidia n1 catless non resonated front pipe ( not sure is this also considered a test pipe?). Would i have any warrenty issue with my dealership? If so how would i fix this check engine light?

1) Search forums! :)
2) There's no O2 sensor at the secondary cat (front pipe)... so no CEL should come up.