Standard Piping Size For R34?

[nuffsaid]

Hi all

Looked underneath my car, to my surprise, looks like there is a Nizmo muffler (yeap must be from a R33 muffler seeing as its spelt Nizmo instead of Nismo).

Anyways, I think from where the muffler bolts to the piping all the way to the engine its pretty much stock.

I measured the piping circumference from where the picture below was taken, and it was 8". Now from my maths that means the piping size is roughly 2.5". Is this the standard piping size guys?

Thanks

[choyda]

Standard is 2.5" (or at least was on my car)

[NJR 34GTT]

Photograph looks to say Nismo not Nizmo to me. But yes 2.5" is standard.

[nuffsaid]

Hahahah your right!

It does actually say Nismo, just the old logo thats all. Everytime I look at the old logo I keep thinking its a "Z".

So I guess the only non standard part is the muffler. Looks like it might have to go if I get a full 3" exhaust.

I would have expected the 34 to have a 2" standard sized piping since an increase from 2.5" to 3" doesnt seem to be that big? Or does this extra 0.5" really make a difference?

Any recommendations guys for exhausts?

Please see http://www.skylinesaustralia.com/forums/in...=0#entry1747545