2 3/4 or 3" exhaust

Hi guys
Looking at getting a new exhaust but don't
Know which one is best for the crd.
Thanks heaps
Ron

2 3/4 for me no problems. some will say 3" but you can get overboost on some cars other not so what we need to know is more about your car have you got boost and pyro gauges egr block performance chip you need to have some of these in place when you start to make your troll breath.

2 & 3/4 and no more. There is a technical theory behind this just search it up.

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Originally Posted by kevin07

2 3/4 for me no problems. some will say 3" but you can get overboost on some cars other not so what we need to know is more about your car have you got boost and pyro gauges egr block performance chip you need to have some of these in place when you start to make your troll breath.

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Hi Kevin
I don't have any of those mods yet. I want to get the exhaust in first as I'm making my own
Thermocouple for the gauge

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Originally Posted by Hodge

2 & 3/4 and no more. There is a technical theory behind this just search it up.

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Hi hodge
I have read a bit about them sounds like 2 3/4 gives you more low down torque
And the 3" you get a bit more power. I don't tow anything yet but still unsure
Which way to go

Yep same here, 2.75. I've got the beaudesert system and couldn't be happier:)

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Originally Posted by Oldmate1

Hi Kevin
I don't have any of those mods yet. I want to get the exhaust in first as I'm making my own
Thermocouple for the gauge

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if you went a buedesert it will have a bung in it for the pyro

Quote:

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Originally Posted by Oldmate1

Hi hodge
I have read a bit about them sounds like 2 3/4 gives you more low down torque
And the 3" you get a bit more power. I don't tow anything yet but still unsure
Which way to go

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as I said earlier the 2 3/4 theres no problems with a 3" its possible you can get problems. problems equals pain in freckle

I have a 3" and haven't had any issues at all.

hi guys
thinking of the beaudesert exhaust but do i go the 409 ss or the 304 ss i go up the beach 3 or 4 times a year but don't know if it worth the extra $665
to go stainless steel. do most just get the 409
thanks

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Originally Posted by Oldmate1

hi guys
thinking of the beaudesert exhaust but do i go the 409 ss or the 304 ss i go up the beach 3 or 4 times a year but don't know if it worth the extra $665
to go stainless steel. do most just get the 409
thanks

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I wouldn't for that extra cost. Just make sure you hose out the underside of your car after a beach run.

Quote:

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Originally Posted by Oldmate1

hi guys
thinking of the beaudesert exhaust but do i go the 409 ss or the 304 ss i go up the beach 3 or 4 times a year but don't know if it worth the extra $665
to go stainless steel. do most just get the 409
thanks

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I got ten years out of a steel exhaust on my last car and I'm on the beach a lot more the 4 times a year ,

Stainless doesn't deal with vibrations anywhere near as good as good old mild steel. SS has a habit of work hardening and cracking at the mounting points.

Thanks heaps I'll order the 409 from beaudesert yomortow

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Originally Posted by Oldmate1

Thanks heaps I'll order the 409 from beaudesert yomortow

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Give us an update and thoughts when it's done.

Quote:

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Originally Posted by Nisshead

Yep same here, 2.75. I've got the beaudesert system and couldn't be happier:)

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From all I've read here it appears the Beaudesert 2.75" is a perfect size for the CRD.
I have a 3" but mine is a Di and I'm happy with it

Quote:

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Originally Posted by Oldmate1

Hi guys
Looking at getting a new exhaust but don't
Know which one is best for the crd.
Thanks heaps
Ron

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G'day Ron,

I assume that you have the 3lt patrol? If that is the case go with a 2.75 or 2 and three quarter inch system. I have used both the 3inch and 2.75mm systems on my old 3lt Navaras and the 2.75mm system performed the best. The 3inch does work on the 3lt motors, however, there is know advantage in performance wise over the 2.75mm system on a stock 3lt motor set-up.

However, what I did find is that the 2.75mm system performed far better with the stock engine set-up, less back pressure and allowed the turbo to spool-up better. The EGT's were still the same. Also the 2.75mm system is a lot quiet than the 3inch.

That said; if you are looking for a lot more power and you have don all the relevant pollution blocks, running a larger air intake system and have fitted a chip to your motor, then I would fit a 3inch system to help the thing breath a lot better and help reduce EGT's.

When I had both systems on the dyno 3 years ago the 2.75mm system had a 2% better result than the 3inch system with a stock 3lt fitted with a snorkel.

I would give several renowned exhaust system brands a call for there feed-back and also give Reinhard from Berrima Diesel a call he is one of the best Nissan mechanics in the country. He will be the one on which system is the best for the Patrol. He advised me 3 years ago to fit the 2.75mm system to my Navara and he was right.

Berrima Diesel contact details are;

Address: 3483 Old Hume Hwy, Berrima NSW 2577, NSW Australia Phone: (02) 4877 1256

PS, I hope the above info can help you choose the correct system for you!

Regards,

PMC

Quote:

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Originally Posted by PMC

G'day Ron,

I assume that you have the 3lt patrol? If that is the case go with a 2.75 or 2 and three quarter inch system. I have used both the 3inch and 2.75mm systems on my old 3lt Navaras and the 2.75mm system performed the best. The 3inch does work on the 3lt motors, however, there is know advantage in performance wise over the 2.75mm system on a stock 3lt motor set-up

However, what I did find is that the 2.75mm system performed far better with the stock engine set-up, less back pressure and allowed the turbo to spool-up better. The EGT's were still the same. Also the 2.75mm system is a lot quiet than the 3inch.

That said; if you are looking for a lot more power and you have don all the relevant pollution blocks, running a larger air intake system and have fitted a chip to your motor, then I would fit a 3inch system to help the thing breath a lot better and help reduce EGT's.

When I had both systems on the dyno 3 years ago the 2.75mm system had a 2% better result than the 3inch system with a stock 3lt fitted with a snorkel.

I would give several renowned exhaust system brands a call for there feed-back and also give Reinhard from Berrima Diesel a call he is one of the best Nissan mechanics in the country. He will be the one on which system is the best for the Patrol. He advised me 3 years ago to fit the 2.75mm system to my Navara and he was right.

Berrima Diesel contact details are;

Address: 3483 Old Hume Hwy, Berrima NSW 2577, NSW Australia Phone: (02) 4877 1256

PS, I hope the above info can help you choose the correct system for you!

Regards,

PMC

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Thanks PCM
I'm think I'm going to put the beausesert 2.75 exhaust on .
I'll be down your way in October staying at moonie

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Originally Posted by Oldmate1

Thanks PCM
I'm think I'm going to put the beausesert 2.75 exhaust on .
I'll be down your way in October staying at moonie

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G'day mate,

Let us know when your are down this way, Moonie beach is only 10ks away.

Regards,

Paul

Hey Paul
I'll let you know when I'm down
Where do you live mate
Ron

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Originally Posted by Oldmate1

Hey Paul
I'll let you know when I'm down
Where do you live mate
Ron

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G'day Ron,

I live at Safety Beach 2ks North of Woolgoolga.

Regards,

Paul