A Aaron Member : 2003 MSP Dec 9, 2003 #1 what about removing just the second cat??? will the car still pass emissions and will there be any performance increase???
what about removing just the second cat??? will the car still pass emissions and will there be any performance increase???
S Striker187 Member : 2008 MS3 GT Dec 9, 2003 #2 i don't know about the emissions but i doubt there will be much of an increase since you'll still have the first cat in the way. you may yield a couple hp though.
i don't know about the emissions but i doubt there will be much of an increase since you'll still have the first cat in the way. you may yield a couple hp though.
M Mazdacub Member Dec 10, 2003 #3 I removed my second cat. It might not do anything for hp but your car will be around 20lbs lighter.
A Aaron Member : 2003 MSP Dec 10, 2003 #4 did removing the second cat make the car sound any different
G Geoffsurfs Member : MSP 03 Dec 11, 2003 #5 I have heard one without the 2nd cat and it sounds a tad deeper, but good! i think i want to take it out too.
I have heard one without the 2nd cat and it sounds a tad deeper, but good! i think i want to take it out too.
M Mazdacub Member Dec 11, 2003 #6 i couldnt tell if it was louder or not cuz i put a new muffler sys on at the same time.
V Vulcanon Member : Laser Blue MP3-T #1242 Dec 11, 2003 #7 I believe removing the precat would be more beneficial
M Mazdacub Member Dec 11, 2003 #8 when i get headers im going to remove the first one also. I will be cat freeee!!!
G Geoffsurfs Member : MSP 03 Dec 12, 2003 #11 you cant put headers on a turbo car, you will have to get a downpipe, and removing the first cat will throw a CEL.
you cant put headers on a turbo car, you will have to get a downpipe, and removing the first cat will throw a CEL.
