Projectquick

I finally diagnosed the symptoms on my gt. It was stumbling at idle and felling very hesitant at lower rpms but at higher rpms it was fine. The first two cats would be almost red hot while the second ones were just warm. It of coarse had the smell like they were burning and the dirty condensation water. I figure that the front two cats are either really clogged or that the long tubes actually melted the fronts of them. My question is is there an easy way to gut the cats without actually removing them or cutting open the shells? On my truck before I got the off-road y-pipe I just unbolted the muffler and used a breaker bar to smash them out, then just used the exhaust to blow the rest of the crap out, would this work on the mustang as well? I plan on getting an off-road crossover in the near future but for right now I just want to make sure its running right.

mjr46

just use a extention to break out the cats

302army187

ive been thinking about doing this, if you figure out how to do it, let me knw!

BLK89GT

any thing that is long enough will work. hit it a couple of times then turn it upside down to get the stuff out. continue till you break through then the car will blow the rest out!

Projectquick

The thing is I have to check how the exhaust was done. I'm not sure if the cats are welded onto the pipe after the LTs or if they're bolted. If they are welded I'll have to unbolt the mufflers and smash them out while they are still on the car and use the exhaust itself to blow out the little bits still in there.

302army187

im going to try this tommarow........

ill let you guys knw how it goes for me

golden_eye

You could just pour some leaded avgas into your tank [8D].





Joking, sort of. Probably won't hurt anything (aside from the cats) but I wouldn't recommend it. Plus avgas is pretty expensive.

Projectquick

Well I looked and I could do it either way, leave them on the car and smash them out or just take them off and do it. I'll let you guys know how it goes this weekend as lond as it doesn't snow.

aode08

What alot of you dont know, is that cats are promblematic period.


They should be eliminated with an off road pipe for non emmisions states.

If you have emmisions, replace the cats with bigger ones or higher flowing ones.


Your gonna see a bunch of white and black nasty crap come out of there and notice your car perform and act alot better than before.

302army187

ok, heres a question for you mustang guru's......

the mustangs stock midpipe has 4 cat's.....

i figure if i knock 2 out, i should still be able to pass emmissions in 2yrs.

so by logic, the frount cats should be the crappy ones, that are all blocked up, then the back two.

the back two are there to catch crap the frount dont get, the frount two are the ones that get most of it.

so im gonna start by knocking out the frount two.




is this good logic? or is there something i dont know