can my cats melt?
Thread Starter
On The Tree
Joined: Jan 2008
Posts: 175
Likes: 0
From: Delaware
can my cats melt? I just took my car to the dyno to get it tuned. I have a d1sc that I'm runnning. The exhaust is brp headers 2.5 inch duals and cats. Do I need to gut the cats? Can they melt and plug up the exhaust? Would drilling a hole through the middle be enough to cool down the cat? Like a 1 inch hole? I've never messed with the inside of a cat so I don't really know how it would react to a drill bit. Any thoughts/suggestions? Does the cats need to be completly gutted?
On The Tree
Joined: Feb 2011
Posts: 102
Likes: 0
From: leominster ma
with a supercharged car your not suppose to run cats ....i dont run cats on mine and pass inspection fine ...im in mass and they are difficult on passing here as long as its tuned for no cats they are not going to jack up the vehicle and look for them imo
Staging Lane
Joined: Jun 2011
Posts: 67
Likes: 1
From: Morrisburg, Ontario, Canada
If your worried about etest buy a cheap high flow set and v band them on when etest is needed, then v band straight pipe or a hollow set on the rest of the time. This way it saves the cats for next etest.
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Thread Starter
On The Tree
Joined: Jan 2008
Posts: 175
Likes: 0
From: Delaware
So what is the reccomended method for gutting the cats? Could I use a big 2 inch drill bit through the middle? Would the remainder stay in place? Is it attached to the wall?
Do I need to re tune the car after messing with the cats? Will this mess with air/fuel? Change back pressure significantly?
Do I need to re tune the car after messing with the cats? Will this mess with air/fuel? Change back pressure significantly?
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If you start cutting the cats, they will completely disintigrate in a very short period of time. Think house of cards, you're not going to remove just some of it without compromising the structural integrity of the rest.
Thread Starter
On The Tree
Joined: Jan 2008
Posts: 175
Likes: 0
From: Delaware
ok so it's an all or nothing type of deal. Is there any reason to worry about not getting all of the trash out of the pipe or will it flow through the exhaust and out the back.
I just got the car dyno'd and tuned today, will I need to re-tune after gutting the cats?
I just got the car dyno'd and tuned today, will I need to re-tune after gutting the cats?
