twodollardoug

Has anyone tried to just break the catalytic converter material out of the secondaries? I am thinking about giving it a try... Just as I stop gap until I can save up for an exhaust system.

RAudi Driver

Everyone does it on every other car out there. Don't think our car's would be any different. However, they are pricy if you ever need to replace them or go to sell the car. I would probably be patient and wait it out.

twodollardoug

I think I'm gonna pound the guts out tomorrow. Resale value be damned. I've already done so much to the car that I have probably scared off half the potential buyers anyways. I knew that when I turned the first wrench on my cayenne I was loosing value.

Slickdvl

I kept mine in case they decide to fail me for inspection

twodollardoug

Hmmmm. I didn't think about that.

John Young

You know- that’s not bad an idea. It throws no CEL codes- and in Cali which is more stringent- they don’t put AWD etc on rollers so a Cayenne is tested just at idle. Anyone here pass smog with 2nd cat bypass? If so- just pound out the cats.

twodollardoug

I was thinking exactly that. I'm gonna pound them out tomorrow. I will post back up tomorrow with the results. I imagine the results will be the same as adding a pair of aftermarket tubes.

F SANE IL

If this doesn't create a raspy poppy sound on yours, I'm doing this too. Although I think it will. Those Seoul tubes for instance sound like total **** and it only cost $600 to make your Cayenne sound like ****.

I think best is to have the rear exhaust system which is pricey at best.

RAudi Driver

Also had a Tubi rear section and hated it. These turbos sound best stock.

manouk

Have an Akra on my 14 and sounds much better than stock. Just enough and not too loud at all

twodollardoug

I didn't get a chance to work on the car this weekend. You guys have given me a lot to think about. I don't want to do something I'm going to regret. If I pound out the cat I can't unring that bell.

skinnytirez

i bet you could pick up some stock secondary cats on the cheap from someone here that pulled theirs; then you could gut those and still have yours for backup...

Video before and after please.

F SANE IL

Also, if you're skilled with a welder, maybe put pipes through the center of those cats and you get same result as any of those bypass pipes for fraction of the cost.

RAudi Driver

I agree. Don't pound the cat. Get some pipes if you want that sound.

I'm not a fan of the aftermarket sound on these things. Maybe the Akra but I can't afford that. I enjoy the Turbo for what it is. Super fast and super quiet doing it. Silence makes a car feel faster.

twodollardoug

And it doesn't draw attention.