tzimmer91

Would cutting the exhaust after the cat do any damage to the engine.....i know a vehicle has to have about 7 pounds of backpressure to run correctly right? Just making sure it wont hurt anything so im askung before i cut

Gee oh Dee

No damage, but you'll get plenty of fumes in the cabin.

tzimmer91

I ride with all the windows down anyway bcuz i dont have ac lol

Gee oh Dee

I do too. Any my 87 is broken AFTER the cat.

I still stink like exhaust when I get to work.

It really sucks.

tzimmer91

Maybe ill put a turndown after the cat so it shoots the exhaust at the ground

Gee oh Dee

Do a side dump instead.

Just plumb it out right before a rear tire. Eventually when I'm less lazy thats what I'll do.

Some will say, though, that this isn't even the best. And that a full out exhaust that goes to the rear is best.

I guess you just have to see what works for you.

I would just hate to lose some brain power because of an exhaust placement.

tzimmer91

Ill ride with no pipe and if its too bad maybe ill dump it right before the rear axle.....i dont like side exits

tavish_g

i like my side exit, just wish i didn't have an 01, so i wouldnt have the pre-cats on the header as well as the regular cat. would be louder on an older xj i think.

DUDE454

Ive go no smell and mine is cut just after, but it does turn down and slightly out. Works great and now i no longer get the rear pipes hung up

BlakeDGKleavitt

Be careful cuz if it's around a 97 andu cut the cat it'll throw te 02 sensor outta wack and you'll get way to much gas pumped into the engine. Ur gas to air ratio will be bad and it'll run lik crap.

tavish_g

Removing a catalytic converter is illegal. The only time you should talk about removing one is durring the replacement of the converter. All other discussion of removing a catalytic converter is not permitted on this forum.

AoA

Calm down bro, its only the interwebs



i had mine dumped after the cat and i couldnt smell a thing, maybe it's cuz you have a 2-door Gee, my buddys zj is dumped after the cat too, and theres no exhaust smell

-Dom-

I have mine dumped before the axle

BlakeDGKleavitt

Their not even talk in about cuttin out the cat. Talk in about how he should cut the exaust pipe and which way to point the end. The exaust after the cat. Come on now.

-Dom-