solow

etchhead

solow

The sound is incredible and there is hardly no drone. Can't really notice the smell either. I'm just paranoid about getting pulled over by the wrong cop who's having a bad day and decides to look under my car.

"02996ttx50

contact sam @bydesign. he can help. he's the rep for kline. i *used* to run my kline here in KALI with the decats. i've gone yeller in my old age.

Road King

Same here....that's why I'm now running 200cell HJS Sport cats. I haven't noticed much degradation in power either compared to the decats. That being said, I'm running 100 octane exclusively with a custom Cobb/Sambo tune since my car's only driven 2000-3000 miles per year.

If I lived in Florida or say Texas, I'd be decat all day every day on 94 octane and loving it. But living in the People's Republic of California is a whole 'nother game. Plenty of upside of course, but there are many downsides that delve into the world of crazy politics.

So, to summarize, there's very little sound difference between the 200 cell HJS cats and the decat at cruise, part thottle, and even WOT. The 100 octane smells good with cats or without, so definitely not like regular CA Kool-Aide pump gas.

solow

I've contacted Sam already, unfortunately new HJS 200 cell cats cost as much as I paid for the used Kline so I'm on the hunt for used ones.

"02996ttx50

fully understood. GL.

HBdirtbag

FYI, you may have a hard time finding someone to pass you even with the 200 cell klines. I've been using the same smog guy for a few years now, and he berated me when I went in last time, told me to put the stock exhaust back on before coming back this year. That made me realize, if i'm going to have to put on stock exhaust...might as well put on test pipes for the time being

MezgerTT

PM me if you need a stock exhaust for smog assurance.

"02996ttx50

my kline w the cats on passes every time here. please dont jinx me lol. its the damn i/m monitors that drive me nuts. i.e. "cat not ready".

solow

Thanks I already have a stock exhaust, I just want the cats because of the new California exhaust laws.

"02996ttx50

nothing new in CA. soon you'll need tags to ride a cow.

Steve Theodore

As I'll also be buying a Kline exhaust for my 996TT, I'm also interested in the conversation about catted versus de-catted. I do not have emissions issues and so my gut reaction is to go for de-catted. I've enjoyed cat-less setups on other cars without any real issues, but want to make sure it's a good overall choice on this platform. I've never owned a 996TT without cats, hence a little apprehension about it. Assuming emissions are not the issue, would you guys all go cat-less on this platform? It would also save me a few bucks on the exhaust, so there is a bit of a bonus there too.

solow

Definitely go de-cat if you don't have any issues with emissions. Sound is great and there is no done with the decat pipes as well. I've read somewhere that with the 200 HJS cell cats that there is very little drop off in performance but they're very expensive. If I didn't have issues with emissions or crazy California exhaust laws, I'd definitely run decat and this thread wouldn't exist.

"02996ttx50

catted vs "decatted"; the car "breathes" better and performance is commensurate with the less restricted exhaust. albeit "illegal". you can only "smell" the unburnt fuel if standing behind the car lol. but it's there. welcome to the real world issues of the mini ice age. that said, catless kline is fine.