Urgent Help header and exhaust

playboymonk · 04-29-2007, 10:14 AM

I just purchase the mugen header from KingMotorsport. Does anyone know if I would need to take out the catalytic converter for this? I shot an email to kingmotorsport, but it's a sunday and they are close. I was going to buy the J's racing 70RR ti exhaust, but it's says it's a header back. I don't know if the mugen header will fit with the j's racing 70RR exhaust. can any one advise? My whole intent was to get a header and cat back and not take out the catalytic converter. Give me some advise guys.

beverly_k · 06-08-2007, 12:16 AM

Don't take out your catalytic converter. It has a huge purpose on your exhaust. "A catalytic converter is an emission-control product that cleans up a gasoline-powered engine's exhaust. Exhaust gases leave the engine and pass through one or more catalytic converters where unburned hydrocarbons and other byproducts of the combustion process are converted into less harmful emissions." quoted from Honda catalytic converter

that's the main reason why you should keep your cat.

kgf3076 · 06-08-2007, 01:46 AM

Quote:

Originally Posted by playboymonk

I just purchase the mugen header from KingMotorsport. Does anyone know if I would need to take out the catalytic converter for this? I shot an email to kingmotorsport, but it's a sunday and they are close. I was going to buy the J's racing 70RR ti exhaust, but it's says it's a header back. I don't know if the mugen header will fit with the j's racing 70RR exhaust. can any one advise? My whole intent was to get a header and cat back and not take out the catalytic converter. Give me some advise guys.

Installing the Mugen takes about 1 hour. You don't remove anything but the stock exhaust header. The Mugen has all the necessary parts enclosed. You keep the catalytic converter because the exhaust is tuned for it being there. If it's removed, you are going to have some interesting problems. AFIK, all Cat-back systems bolt up directly to the converter. (I have the Mugen header and a CompTech cat-back. They work fine with the stock catalytic converter)

gomarlins3 · 06-08-2007, 07:14 AM

When you remove the battery heatshield, don't take the bolt closest to the firewall out, just loosen it and the heat shield will slide up over it. Have that be the last bolt you loosen. Trust me, it's easier that way.

LagunaAp2 · 06-08-2007, 03:22 PM

You can run your mugen header with the J's exhaust. The j's exhaust has a cat delete straight pipe for better flow. If you buy that exhaust it's best that you remove the cat. So if you are worried about passing emissions then don't. but it's not a big deal. I have an Apexi N1 Catback with straight pipe and it's fine.

04-29-2007, 10:14 AM	#1 (permalink)
playboymonk Member Join Date: Jan 2007 Posts: 30	Urgent Help header and exhaust I just purchase the mugen header from KingMotorsport. Does anyone know if I would need to take out the catalytic converter for this? I shot an email to kingmotorsport, but it's a sunday and they are close. I was going to buy the J's racing 70RR ti exhaust, but it's says it's a header back. I don't know if the mugen header will fit with the j's racing 70RR exhaust. can any one advise? My whole intent was to get a header and cat back and not take out the catalytic converter. Give me some advise guys.

06-08-2007, 07:14 AM	#4 (permalink)
gomarlins3 "Enjoy the drive" Join Date: Jul 2005 Location: Kuna Idaho Posts: 2,644	When you remove the battery heatshield, don't take the bolt closest to the firewall out, just loosen it and the heat shield will slide up over it. Have that be the last bolt you loosen. Trust me, it's easier that way. __________________ Yablownowitz Racing brought to you by Anytime Fitness. Happiness is a nice road, great weather, and driving the S with Sue in the seat next to me. "Whatever you do, where ever you go, enjoy the drive." I know for a FACT that the last year of production of the S2000 is 2003!!!!! After that, it will be the S2200 under an assumed name.

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06-08-2007, 12:16 AM	#2 (permalink)
beverly_k Junior Member Join Date: Jun 2007 Posts: 7	Don't take out your catalytic converter. It has a huge purpose on your exhaust. "A catalytic converter is an emission-control product that cleans up a gasoline-powered engine's exhaust. Exhaust gases leave the engine and pass through one or more catalytic converters where unburned hydrocarbons and other byproducts of the combustion process are converted into less harmful emissions." quoted from Honda catalytic converter that's the main reason why you should keep your cat.

06-08-2007, 03:22 PM	#5 (permalink)
LagunaAp2 Junior Member Join Date: Jun 2007 Posts: 3	You can run your mugen header with the J's exhaust. The j's exhaust has a cat delete straight pipe for better flow. If you buy that exhaust it's best that you remove the cat. So if you are worried about passing emissions then don't. but it's not a big deal. I have an Apexi N1 Catback with straight pipe and it's fine.