CAT CHANGE OR NOT??

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Dec 7, 2004 | 06:17 PM

shoei

Thread Starter

Joined: Sep 2004

Posts: 10

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From: calgary, alberta, canada

CAT CHANGE OR NOT??

Hi guys,
this might be one of the most common question ever, but i do need help, hope you guys can help me.

i had a 2001 GSR and i changed my to the 5-zigen catback system with dc sports headers. i don't mind the loudness of the car, but i'm finding i'm using more gas with a race resonator. the resonator only have one slot for the oxygen sensor. what is the horsepower difference if i change it back to the stock one? is it worth the change?

SHOEI

Dec 8, 2004 | 12:53 AM

Calsonic

Honda-Tech Member

Joined: May 2004

Posts: 865

Likes: 0

From: Reading, PA, USA

Re: CAT CHANGE OR NOT?? (shoei)

I think you mean the cat. not the resonator. The resonator isn't supposed to have an o2 sensor plugged in.

Dec 8, 2004 | 04:42 AM

dFreezy

Honda-Tech Member

Joined: Jul 2002

Posts: 7,985

Likes: 1

From: Boston, MA

Re: CAT CHANGE OR NOT?? (Calsonic)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Calsonic »</TD></TR><TR><TD CLASS="quote">I think you mean the cat. not the resonator. The resonator isn't supposed to have an o2 sensor plugged in.</TD></TR></TABLE>i think he's referring to a resonated test pipe with an o2.

there will be some loss of power since the stock cat is so restrictive. have you considered buying a high flow cat? carsound cats flow almost as well as test pipes and put out similar numbers. there also could be a number of other things are giving you bad gas mileage, not necessarily your resonated test pipe...