What brands and Type CAT's are ppl using????

The best cat is the gutted cat. Get your local exhaust shop to remove and if they wont empty the insides out and refit it for $100 go somewhere else. Another way is go to the wreckers and take it home and do it yourself. Take your DIY hi flow cat to the exhaust shop and they should swap them over for $50. Most cats would be stuffed in 12mths if your running around 300rwkw. So long as it looks standard from outside you wont get into trouble with the law.

Unless you get a machinery ticket and they give you an exhaust gas analyser test, then you could be in a spot of bother I would think.

Big AL

deny deny deny. Cats do collapse from time to time. The substrate also becomes inactive over time. If you get done all you get is a fail reading and you go buy a newie and fit it. No great drama

I'm using the stock cat for my power, but would recommend Catco 5" metalic. Slightly dearer than metal cat because it has much more (5" dia v's 4") substrate.

How does one go about gutting a CAT if say they wanted too..

I've heard the Punched CAT is the easiest. (meaning a pipe punched through the CAT and welded in).

Also how is the exhaust designed. Meaning how does it fit together and get removed.

Can you unbolt a section and work on it then reinstall? If so what part?

Hope that makes sense.

Edited August 20, 200719 yr by ritzy

I personally never want to go down the gutted or punched cat road.

Does any one know the pricing of the Catco 5" metalic, is it me or is that slightly overkill??

Regards

TUFXRT6

I came across these guys that sell them for $440 http://www.justjap.com/parts_ncats.htm. The xforce one is just as good flowing apparently (metalic) and about $300 on ebay. www.catco.com.au has some comparisons. I think the benefit of these 2 cats is that they provide close to 0 restriction on a 3" pipe where the metal cat is about 10%. When it comes to performance sometimes it's worth paying a little extra

Edited August 21, 200719 yr by tquarrell

I came across these guys that sell them for $440 http://www.justjap.com/parts_ncats.htm. The xforce one is just as good flowing apparently (metalic) and about $300 on ebay. www.catco.com.au has some comparisons. I think the benefit of these 2 cats is that they provide close to 0 restriction on a 3" pipe where the metal cat is about 10%. When it comes to performance sometimes it's worth paying a little extra

Cats are all the same on the inside. Surface area is what counts. Substrate is substrate. I have seen half dozen cut open and all use the same insides. Obviously the more surface area the better the flow.

Cats are only valuable by there restriction, or more to the point the lack of it......... IE.. No cats = no static..

You want carbon credits though, PM me for the best buy cat on the market..........