hey i got a vt commodore with airhog pod filter and catback mandrel bent exhaust.
looking at possibly getting extractors. any benefits?
You will gain better acceleration, better highway economy and better top end.
^^^^^^^other than the sound,,
Extractors not worth the money unless you intend to upgrade other components in the engine. Also if you get extractors your gunna need hi flow cats.
high flow cats arent worth it on a 6 banger
Getting extractors and attaching it to the stock standard single middle cat, doesn't that defeat the purpose of the supposed performance gains from the extractors. There is still that restriction in the pipe work. Plus if your getting extractors it would be wise to replace the cat, or put in hi flow cat(s).
The stock cat flows more than enough for even a wild N/A V6, it is only when you get into FI do you need to change the cat.
It is a common thing for people to look inside a cat and think that it looks restrictive therefore it must be.