Catalytic converter replacement options? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

*transient* · 06-23-2003, 11:12 PM

Ok, I need to get myself something to replace my old nasty cat. Preferably something with a 3 inch diameter (it's a turbo). I don't really want to put a cat in... I was thinking that there might be something I could put in there that I could pass off as a cat, like a resonated test pipe or something... I've seen them on projectsilvia.com.

If there is a good high flow cat, though, I'd be up for putting one of those in. I don't really know anything about different Cat designs, I just know that I've seen them range quite a bit. Anyone got any info to help me out, or reviews?

Johny5 · 06-24-2003, 01:10 AM

I have a 2.5" from catco off of summitracing.com not sure but they might offer a 3"er. It didn't do horrible things to the exhaust note, then again, im n/a so who knows with a boost setup.

240 2NR · 06-24-2003, 10:35 AM

If it's a street driven car, I say get a high flow unit. I believe enjuku has a 3" catco for just over $100 (not bad considering a test pipe is more than half that). For the minimal perfomance loss and huge environmental impact, I say keep it, not to mention the outragous fines if you get caught, as minimal as the risk may be (though if you're ever driven behind an non catylized car it's pretty obvious).

KOUKI KA-T · 06-24-2003, 03:37 PM

I have one of the resonated test pipes form project silvia, if your not concerned about getting busted for no cat i'd suggest that. Very quality piece for only 80$, and it gets here in like 3 days.

*transient* · 06-24-2003, 09:39 PM

Hmm... maybe I'll just go with the catco.

06-23-2003, 11:12 PM	#1
transient Premium Member Join Date: Jun 2001 Location: Los Angeles, California Age: 41 Posts: 2,947 Trader Rating: (0) Feedback Score: 0 reviews	Catalytic converter replacement options? Ok, I need to get myself something to replace my old nasty cat. Preferably something with a 3 inch diameter (it's a turbo). I don't really want to put a cat in... I was thinking that there might be something I could put in there that I could pass off as a cat, like a resonated test pipe or something... I've seen them on projectsilvia.com. If there is a good high flow cat, though, I'd be up for putting one of those in. I don't really know anything about different Cat designs, I just know that I've seen them range quite a bit. Anyone got any info to help me out, or reviews? __________________ Learn everything you can, while you still have the chance.

06-24-2003, 01:10 AM	#2
Johny5 Post Whore! Join Date: Dec 2002 Location: Dallas, Tx Age: 40 Posts: 3,221 Trader Rating: (9) Feedback Score: 9 reviews	I have a 2.5" from catco off of summitracing.com not sure but they might offer a 3"er. It didn't do horrible things to the exhaust note, then again, im n/a so who knows with a boost setup. __________________ www.stewartleask.com

06-24-2003, 10:35 AM	#3
240 2NR Zilvia FREAK! Join Date: Dec 2001 Location: Denver Posts: 1,131 Trader Rating: (0) Feedback Score: 0 reviews	If it's a street driven car, I say get a high flow unit. I believe enjuku has a 3" catco for just over $100 (not bad considering a test pipe is more than half that). For the minimal perfomance loss and huge environmental impact, I say keep it, not to mention the outragous fines if you get caught, as minimal as the risk may be (though if you're ever driven behind an non catylized car it's pretty obvious). __________________ Steve 93 240sx FB currently very clean and for sale

06-24-2003, 09:39 PM	#5
transient Premium Member Join Date: Jun 2001 Location: Los Angeles, California Age: 41 Posts: 2,947 Trader Rating: (0) Feedback Score: 0 reviews	Hmm... maybe I'll just go with the catco. __________________ Learn everything you can, while you still have the chance.

06-24-2003, 03:37 PM	#4
KOUKI KA-T Zilvia FREAK! Join Date: Feb 2003 Location: Portland, Maine Posts: 1,085 Trader Rating: (0) Feedback Score: 0 reviews	I have one of the resonated test pipes form project silvia, if your not concerned about getting busted for no cat i'd suggest that. Very quality piece for only 80$, and it gets here in like 3 days.