i did a search...found nothing to really answer my question

will a get benefit to remove the cat on my stock downpipe???(i have gm s2/injen/and borla catback)

i know that will trow me some cel(my trifecta tune is for this month)!!!

OR better to wait ..and buy a zzp

 

catless on the s/c cobalts sound like ass so raspy... i put it on mine then changed to vibrant with a highflow... just fyi

 

ok but for the dowpipe cat???any benefit??

 

just get a catted zzp downpipe

 

The cats aren't the big restriction, it's where the downpipe crushes down where the 02 sensor is.

 

this what ive thinked

thank

so i will go whit the tune first....i hope that will be better than the gm tune..

 

everyone has different taste in sound i would go catless if u want every hp u can get but if not then get a catted dp but remember a catted dp is like 100 more at zzp

 

I gutted my factory d/p just becuase when i bought the car the dealership had to swap on the factory d/p because the previous owner had a catless d/p...they used the secondary bung to put the wideband sensor in that was with the car, thus making it not really effective for tuning. at the time it was just easier, and free, to gut the cat vs having another bung welded on or buying another d/p when i knew i would get a header/dp later. I have the GMPP catback with the factory header/manifold and gutted factory d/p and its sounds pretty good and doesnt really have any rasp, picked up some noise too

 

ok as i read...with or without...my choice..so im perfectionnist and extremist..i whant the max that my set-up can do....

if i remove the 2 cat(dp and the principal )i will be able to run with my car even if ive got cel??

 

ya u will have a cell but u can still drive ur car

 

another noob question...sorry..will the trifecta tune can earase it?

 

if u tell them ur catless yes it should