300Tdi Front Exhaust Pipe

[Ranga]

Mine's rusty (with a hole in it), so I need to replace it. I put fibreglass wrap on it about 5 years ago. Not sure if this has caused (or assisted) the rust. Would stainless be worth the extra cost?

[weeds]

I’m not convince stainless is worth the cost given how long a mild steel one lasts.......stainless also work hardens which may lead to cracking.

What’s the cost difference??

[Ranga]

Not sure on price difference. I thought of using stainless to avoid the wrap causing rust. I've had conflicting advice saying wrap does and doesn't cause rust. Perhaps mine was rusty already, who knows?

[incisor]

I've never seen it cause rust

done it to way too many vehicles and not seen it on any.

stainless is okay if you fit a flexi joint, but i fit them anyway as it makes for a more pleasnt ride.

personally, i wouldn't bother with stainless on a defender....

[rick130]

What weeds and Inc have said.

Aluminised steel seems to last so long in Australia on a turbo diesel, unlike the northern hemisphere where salt is used on the roads in winter.

The 3" black steel dump pipe I made rusted out badly under the header wrap as the high temp paint I used failed.
If I'd had it mandrel bent out of aluminised pipe instead of me cutting and welding mandrel bent sections it'd still be ok.

[86mud]

Just use normal aluminised steel and get pipe ceramic coated. More efficient than exhaust wrap. Coating goes on both external and internal surface

[Ranga]

Just use normal aluminised steel and get pipe ceramic coated. More efficient than exhaust wrap. Coating goes on both external and internal surface

Is the ceramic coating applied by the muffler place, or somewhere else? Any idea about cost, and good supplier?

[rick130]

Is the ceramic coating applied by the muffler place, or somewhere else? Any idea about cost, and good supplier?

No, you have to send it away to places like HPC or Jet Hot.

I agree, that's the ultimate way of doing it.

[uninformed]

All my exhausts on my 110, factory, Taipan and now local shop all rusted/rusting. Gold Coast and park at the beach a lot (not on the beach)

[rick130]

All my exhausts on my 110, factory, Taipan and now local shop all rusted/rusting. Gold Coast and park at the beach a lot (not on the beach)Every time I go to Lennox now all I drive through is sea spray/mist.
My poor Disco, gone from 15 years in the dry desert to....

At least the exhaust is stainless! [emoji1]

[incisor]

Just use normal aluminised steel and get pipe ceramic coated. More efficient than exhaust wrap. Coating goes on both external and internal surface

the only downside to that is it doesn't cut down the engine noise like the wrap does... and it does make a significant difference IME

can you wrap ceramic coated pipe?

[Ranga]

Got a new front pipe today with the flexi joint. Bit hard to tell how much difference the flexi made, after driving for a couple of days with a large hole anything would be quieter!

They emphatically suggested do not use wrap. They even told me they had it for sale, but do not recommend it. Of note, the only part of my exhaust that had holes (this repair and a repair about 8 months ago) were under the wrap, perhaps just a coincidence. They suggested using other methods to keep heat out of the cabin, including dynamat style bitumen products on the vehicle itself.

For those who have used it without an issue - did this include beach driving? I'm wondering whether salt water has a different affect.