3L (2.8) turbo exhaust size

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Xr246
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3L (2.8) turbo exhaust size

Post by Xr246 »

Just turboed my 2.8. Whats a good size for the exhaust? people have said 2 and a half inch and 3 inch?

Is 2 and a half enough? 3 seems like over kill?
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dazza85
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Re: 3L (2.8) turbo exhaust size

Post by dazza85 »

I also have a 2.8 and have been told 2 &1/2 is the way to go
The trick if you can call it that is to go all the way from the turbo
A lot of people go from after the flexi join because of the price
There is no mechanical problem so difficult that it cannot be solved by brute strength and ignorance.
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navara820
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Re: 3L (2.8) turbo exhaust size

Post by navara820 »

I turboed my 3L about 18 months ago and did 2 1/2 exhaust at the same time, runs real good and seems to get the heat out well. Wouldn't go any smaller though.
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Damz
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Re: 3L (2.8) turbo exhaust size

Post by Damz »

Im goin 3 inch on my TD27t. The TD42t guys go 3.5 inch if thats any aid to you :wink:
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Heath
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Re: 3L (2.8) turbo exhaust size

Post by Heath »

Got 3" mandrel on my 3lt prado and i think its slightly too big (noisey now - it drones). 2.5" should be okay unless you are going heavy on the mods.
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tweake
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Re: 3L (2.8) turbo exhaust size

Post by tweake »

2.5 is ok, 3" is a little bit better but costs more.
sound, it all depends on what mufflers, if any, you fit.
reeceb
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Re: 3L (2.8) turbo exhaust size

Post by reeceb »

Im thinkin along the same lines as the others, 2 1/2 inch for a 2.8 litre turbo. there seems to be a masive price jump when you go to a 3 inch pipe especialy if you run a flexi on the system, i've got a 4.2 GQ nissan with extractors and 3 inch mandrel pipe, and remember that dam flexi being about a third the price of the pipe work, also the 2 1/2 pipe will be easier to tuck up under the truck. good luck dude.
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Damz
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Re: 3L (2.8) turbo exhaust size

Post by Damz »

I got my 3" flexi for $50. Ill admit I shopped around, but Arthur Low exhausts in New Plymouth was the cheapest for everything, flexi, coby, and combo bend.
reeceb
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Re: 3L (2.8) turbo exhaust size

Post by reeceb »

50 bucks is good dude, if i remember back me pipe came in about $350 and i put me own headers on but that was about 8 years ago. Pays to have a good sift around for prices tho ah. :D
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darinz
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Re: 3L (2.8) turbo exhaust size

Post by darinz »

Damz wrote:Im goin 3 inch on my TD27t. The TD42t guys go 3.5 inch if thats any aid to you :wink:


Whoever told you that a TD42 needs 3.5" is an idiot! 3" is good enough for about 700hp depending on the length of the exhuast. I don't know of a single td42 that would even need, or would benfit from a 3.5" exhuast.
Nissan Terrano coilovers, turboed VH45, Safari axles, and some other stuff.
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