I have an intake, resonators (instead of cats, so basically test pipes), x pipe, mufflers, 2.5" piping, and am soon getting headers and a plenum spacer.

The reason I have those resonators is because the aftermarket cats I put on blew out, and so I think that may be because my mixture is off but I have no clue.

So... should I be worried given the mods I have and am going to soon have, and also with that happening to my cats? Is my AFR dangerously off?

 

pleeease someone give me advice

 

ttt

 

if ur NA, dont worry. How did the X pipe change ur tone? Less rasp aswell?

 

Once you put all those breathing mods on I'd get an ECU flash at the least, or a UTEC and tuning at the most.

 

your AFR might barely be off but nothing to worry about, with those mods my AFR was 13.1-13.3 all the way across till 5000 and got richer....

just read up more and look at peoples dyno sheets and compare mods with their dyno graphs.

or simply buy a wideband so you know exactly what it is, there are plenty out there for around 300 that will tell you everything you need to know...

 

thanks guys, plumpzzz i dont know how it changed it because ive never had the exhaust on without the x pipe, but when i get the old blown out cats removed and the resonators installed im debating having them cut out the x pipe for a sec to see how it sounds, bc im curious but only if its really cheap to do and undo.