Headers/exhaust issues

F

Francesco Milazzi

New Member
Joined
16 May 2003
Messages
6
Location
London U.K.
Hi everybody,
I just joined the "club" and I have been searching your forums like mad in order to understand a bit better the exhaust/headers/cats/oxigen sensors theory..... with not much success !
I have a 3.0 NSX totally stock and going perfect, nevertheless I would like some more HP...
I have had experience in the past with aftermarket exhaust/headers etc. (porsche/alfa) but in all cases the performance increase was just not there !!
In the case of the NSX the early headers configuration is far from performance designed and therefore it makes me think some kind of improvement is possible.
The exhaust should be OK in terms of performance (I do not look for noise!) but everybody seems to agree that is the combination of Headers/exhaust that makes the difference (I don't see the technical reasons).
Furthermore I read here and there of possible problems with the oxigen sensors and the "check engine" light to come on with no clear explanation on how to avoid that if not hoping in the self-healing properties of NSXes.
Trying to put it in straight questions, is there any clear, technical answer to the following question?:

- Which aftermarket Headers will fit and give performance enancement with no oxigen sensors problems?

- Is the OEM exhaust really too heavy and "congested" if you don't care about sound improvements ?

- Which aftermarket exhaust will be giving a good performance increase staying relatively quiet ? (I am not looking for sound)

- Which combination of both is recomended, again bearing in mind that I look mainly for performance and not for sound increase

Thanks a lot in advance to anybody that can help me to clarify this complicated issue.

Looking forward to read you ....

Francesco
 
I'll be getting some manifolds and exhaust (and de-CAT) soon, I don't like the one on mine at the moment. I am getting them from Japan. Could buy together if you like, I get most stuff at trade cos I deal with imports (cars Japan to UK).

Haven't quite decided on which one to get, but I love the fujitsubo ones on my CRX, so I might go for the whole system from them.

Asuka
 
I would recommend Comptech headers and exhaust based on my personal experience as well as their reputation. I do think that the stock exhaust is unnecessarily heavy and restrictive on the early models, perhaps not as much so on the later models. Just my $.02.
 
CRX B16B VTEC,

I'm, awaiting delivery of a Taitec exhaust from SoS at the moment. Since I'm not sure how much import duties will be and haven't seen the quality yet I am not sure if I will take the Taitec headers as well. But I'm thinking about it a lot ;)
Will let you know when I have them in. Will take another two weeks I think. SoS will probably ship them this week but I don't know how much time customs will need.
(Quietly hoping they will slip through customs without any additional costs though).
 
MvM said:
CRX B16B VTEC,

I'm, awaiting delivery of a Taitec exhaust from SoS at the moment. Since I'm not sure how much import duties will be and haven't seen the quality yet I am not sure if I will take the Taitec headers as well. But I'm thinking about it a lot ;)
Will let you know when I have them in. Will take another two weeks I think. SoS will probably ship them this week but I don't know how much time customs will need.
(Quietly hoping they will slip through customs without any additional costs though).
Click to expand...
Thank you, I am eager to know your opinion once the thing will be fitted....
Talk to you soon I hope

Francesco
 
NSX headers/exhaust

CRX B16B VTEC said:
I'll be getting some manifolds and exhaust (and de-CAT) soon, I don't like the one on mine at the moment. I am getting them from Japan. Could buy together if you like, I get most stuff at trade cos I deal with imports (cars Japan to UK).

Haven't quite decided on which one to get, but I love the fujitsubo ones on my CRX, so I might go for the whole system from them.

Asuka
Click to expand...
Asuka,
I am interested, please keep me informed if you have specific infos on NSX items and their availability/cost

Thanks a lot

Francesco
 
24 may

Welsh Dragon said:
Hi Francesco

Me and a load of other UK and Euro NSX are at Bedford@Palmers this Saturday the 24th May

Why not come down and meet us:)

Dale
NSX 1
Click to expand...
Dale, why don't you give me more details ? I was just complaining we don't have many opportunities in Europe...
Thanks again
Francesco
 
CRX B16B VTEC said:
Is Taitec stuff any good?

Asuka
Click to expand...

I recently installed the Taitec JGTC exhaust as my first modification. The price was right (from Eddy at Adrenaline Racing). The quality looked good (it was shiny and it fit perfectly), but what do I know. The sound is something I do know. It is LOUD when accelerating, but I can still listen to the news on the highway. Possibly the only performance enhancement is my grin is bigger.
 

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