Best Catalytic Convertor Apart From Hjs

[bradsm87]

you talking about these guys?

http://www.hjs-motor.../catalysts.html

Nah the street ones at www.hjs-tuning.de

[bradsm87]

Why run any cat at all on a racecar?

Not a race car

You'll get stung for it like that, no doubt. To inspectors/police/etc, merging the wastegate pipe after the cat is the same as having a screamer pipe, albeit without the noise. It breaks the rule of having EVERYTHING that enters the engine pass through the cat converter, and they're even picky about that over here in the nanny state

Depends which state you're in . There's one state that's more "nanny" than WA and I can assure you, screamers and decats are the norm.

[The Dan]

Why run any cat at all on a racecar?

Because they are street cars also.

[bozodos]

IMO I would keep the stock cat and just run a cheapish 100cpi metal cat flanged to suit (make sure the core is welded in) because either way you're probably not going to pass an emissions test without the stock one (or close enough to stock).

[bradsm87]

Not true (true if the aftermarket cat is a generic one like most). A new 200cpi cat with newer tech coatings that is suitable for new Euro 5 cars is going to have better emissions and way better flow than a 15 year old stock cat.

[bozodos]

moreso I was thinking that it would be easier to just keep your whole stock setup rather than spend hundreds of dollars on a compliant cat that may or may not be still failed in the event of a test