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[goonv6]

I was working on my exhaust on my 1999 Estate. Its on its second engine and the odo reads 150k. Amazingly, the exhausts were in really good shape. They all have GM Vauxhall logos stamped on them, even the backbox! The only thing that's perished are the heatshields on the cat. Do you reckon someone has forked out megabucks and replaced with a standard Vauxhall system or that these could well be the original pipes? :-?

[bob.dent]

Not long enough!!
It seems that whenever I have a new system fitted, it lasts just a couple of months longer than the 2 year warranty. I'm sure the manufacturers make them to do exactly that in order to sell more.

[tunnie]

propper GM doubled walled ones last around 100k and 6 ish years, both our 2.2's (one of which we had from new) both had new zorts around 100k.

I got lucky and got a replacement double walled one, and it still looks in great shape, 2 years and 30k later.

Father tunnies 2.2 which has a GM zorst after the quality dipped, is still looking ok, but not as good as mine 

[cam2502]

mine will be needing replaced in next couple of months,i have 83k on clock and assume its the original exhaust. had a vw passat 1.9tdi,bought it with 41k miles and sold it with 243k on clock, and the same exhaust it was made with still in perfect order

[Kevin Wood]

The biggest factor in exhaust life is the length of journeys.

The inside of an exhaust will be coated with condensation and acid by products of combustion as soon as you start the engine. Drive it for 20 minutes, including some high speed cruising, and it will have got hot enough to boil it all off so that, when you park up the exhaust will be dry.

Nip out 5 minutes up the road and back and you will leave a wet exhaust that will rot away much faster.

Note that Omega exhausts almost always fail on the centre sections just before the back box. It takes longer for this end of the exhaust to get up to temperature as it's further from the engine. In addition, it's a low point where water collects after a short trip.

Kevin

[goonv6]

So at 150k, I'm probably on borrowed time! Guess if you are keeping one long term then GM is the way to go.

[Kevin Wood]

So at 150k, I'm probably on borrowed time! Guess if you are keeping one long term then GM is the way to go.

GM ones are poor quality these days - and still expensive. www.eternalcar.com offer decent aftermarket exhausts at a good price. Failing that get a custom stainless one made for longevity.

Neither of the above are quite as refined as the original, though.

Kevin

[feeutfo]

So at 150k, I'm probably on borrowed time! Guess if you are keeping one long term then GM is the way to go.

85k and 6 years on mine. Genuine are no longer made in the same quality as the original, but are still the same price. Better quality than eternal car i would say, but genuine are almost 3 times the price. Genuine are £311ish on trade club v 120(?) for eternal car i beleive.

[mars]

The biggest factor in exhaust life is the length of journeys.

The inside of an exhaust will be coated with condensation and acid by products of combustion as soon as you start the engine. Drive it for 20 minutes, including some high speed cruising, and it will have got hot enough to boil it all off so that, when you park up the exhaust will be dry.

Nip out 5 minutes up the road and back and you will leave a wet exhaust that will rot away much faster.

Note that Omega exhausts almost always fail on the centre sections just before the back box. It takes longer for this end of the exhaust to get up to temperature as it's further from the engine. In addition, it's a low point where water collects after a short trip.

Kevin

My wife does a 46 mile round trip to work each day. An exhaust we had fitted on her previous car (1.4 VW Polo) from a tyre/exhaust centre which had 2 year warranty, lasted over 4 years