http://www.delkevic.co.uk/?section=prod ... oduct_id=7

Are there anybody who use it? I heard that exhaust list 4-1 not so perofrmace compare with 4-2-1. Is this correct?

gives you a flat spot in the midrange

man,i dunno about u,but i wouldnt buy them just on they way it collects from 4-1...
ewwwww

What about hihg/low range ?

stimpy wrote:man,i dunno about u,but i wouldnt buy them just on they way it collects from 4-1...
ewwwww

Yes, but what is the advantages/disadvantages collectiong 4-1 against 4-2-1 ?

I'm confused about this. I'm always keeping an eye out for stainless headers for my NC23 so this is of interest to me.

People keep mentioning the delkevic pipes which are 4-1. If that's the case, what's the deal with these pipes? They are 4-2-1 if the image is correct and they are claiming to be Delkevic.

Are they any good?

PARUS wrote:

stimpy wrote:man,i dunno about u,but i wouldnt buy them just on they way it collects from 4-1...
ewwwww

Yes, but what is the advantages/disadvantages collectiong 4-1 against 4-2-1 ?

As a general rule of thumb given 2 decent quality systems;

4 into 1 will give slightly more top end power and less midrange

4 into 2 into 1 will givea better spread of power and be slightly down on top end.



regards
jon

ive commented on these pipes twice before, but my question is to PARUS? delkevic dont just do a 4-1, i have them and mine are a 4-2-1 so why not look at getting their like for like?

missinNZ wrote:ive commented on these pipes twice before, but my question is to PARUS? delkevic dont just do a 4-1, i have them and mine are a 4-2-1 so why not look at getting their like for like?

So they make both? That makes more sense...

cress87 wrote:

missinNZ wrote:ive commented on these pipes twice before, but my question is to PARUS? delkevic dont just do a 4-1, i have them and mine are a 4-2-1 so why not look at getting their like for like?

So they make both? That makes more sense...

Yes, but one for NC23 - 4-2-1, another for NC29 - 4-1. Are they interchangeable ?