[ASN]

Hi all,

Am about to upgrade the exhaust on my 2003 ZD30 - can anyone advise whether a 2.5 or 3 inch exhaust is best. I've had quotes on both and there is not much difference in price. Both systems I have been quoted on run no catalytic and a reasonably straight-through centre muffler.

Thanks

 

[T0nka]

may i ask what you were quoted?

im interested in getting mine done soon too

 

[Nikolay]

hello
do 3-inch straight-through, do not put a silencer
you like it and the sound and pull

 

[paul.helm]

Hi all,

Am about to upgrade the exhaust on my 2003 ZD30 - can anyone advise whether a 2.5 or 3 inch exhaust is best. I've had quotes on both and there is not much difference in price. Both systems I have been quoted on run no catalytic and a reasonably straight-through centre muffler.

Thanks

You will get a lot of diferent opinions on which is better.

While I have the 3" taipan with the high flow cat, a 2.5" without a cat will be more than adequate.

The bigger exhaust allows for faster removal of exhaust gasses and if there is not much difference in the price, then go the 3" ......

 

[parscheese]

3 inch.

Cheers

Justin

 

[T0nka]

Sorry to derail topic a tad, but what is NADS and whats it do?

 

[paul.helm]

As per my signature. Nissan Anti Detonation System.

 

[T0nka]

Ive googled it and found nothing.

never mind

 

[the big rig]

I think it's Nissan ani-theft device system as a guess

 

[GUTourer]

yup its nissans anti theft system.

 

[paul.helm]

Sorry to derail topic a tad, but what is NADS and whats it do?

Who was the question directed at?

and,
NADS - Definition by AcronymFinder

My NADS one is not there as its taking the Pi$$ from Nissan

 

[paul.helm]

yup its nissans anti theft system.

Nope, both wrong, thats NATS,

NATS - Definition by AcronymFinder

 

[ASN]

Thanks all for your feedback.

Tonka - about $650 for the 2.5inch and $880 for the 3inch. This is from a guy on the Sunshine Coast.

 

[J N R]

Is that installed? who on the coast?

 

[SHANE 3.0]

Spoke with Roo Systems today, there 3" Mandrel bend system starts at $1370 and stainless steel was $1700 or so. Quoted as 65-70% more flow.

 

[ASN]

Yes, that is installed at Muffler Men at Nambour.

Can anyone tell me whether they have experienced overboosting by increasing the exhaust? I have just read a document about the ZD30 which states that this is an issue when increasing the exhaust size or blocking the EGR valve. They said that you should install a boost gauge to determine whether you are having issues.

 

[Chaz]

Yes, that is installed at Muffler Men at Nambour.

Can anyone tell me whether they have experienced overboosting by increasing the exhaust? I have just read a document about the ZD30 which states that this is an issue when increasing the exhaust size or blocking the EGR valve. They said that you should install a boost gauge to determine whether you are having issues.

There is a very good chance that it will overboost after fitting a free flowing exhaust and it will definitely overboost if you block the EGR as well. Fitting a boost gauge should be mandatory if you decide to do any mods to a ZD30Di

 

[streeter]

does that include the dump pipe in that price? if it does that is really cheap but if i were to do it all again i would get a stainless 3" from beaudesert instead of the 3'" mild so it will last longer.

 

[skegbudley]

Sorry to derail topic a tad, but what is NADS and whats it do?

Can't help myself. I have to answer it.

Nads is hair removal cream.

 

[rumcajs]

Can anyone tell me whether they have experienced overboosting by increasing the exhaust?

Mine went up by approx 2 psi, what I could see before and after difference but I got Dawes valve to control the boost and other mods so I can't tell you what would that be in a stock vehicle.