Exhaust Recommends 2021

[fmj78]

If you were going to replace your entire exhaust system from the block to the back, what product would you go with? What material studs would you use? and what anti-seize method would you go with?

asking for a friend ;

[frenchyozy]

Stainless.[emoji16][emoji136]

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[dn010]

Stainless.[emoji16][emoji136]

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Be careful what "stainless" exhaust you get. When I first replaced my exhaust, I went with the UK "stainless" version. It turned into a rusty heap. I contacted them with photos since it has a lifetime warranty and they basically told me I'm SOL. Nice, after spending over a grand on a stainless exhaust.

http://dmctalk.org/showthread.php?12355-DPI-Spec-I-v-UK-Exhaust-Comparison

My second and current exhaust is DPI Spec I. I have had it for years now and have had zero problems. Since I am in Florida, I originally went with cat delete pipes. After every drive I noticed I smelled like exhaust so Josh was kind enough to swap out the delete pipes with catalytic converters and I can now enjoy arriving at my destination exhaust smell free.

I purchased a stud kit and exhaust gaskets from Rob Grady. I went with a stud for every hole around the exhaust ports (4 per) because in my experience with only using two per port, I'd end up with a leak. Removing the original studs may be a challenge however, I know when I had my original engine I broke a few trying to remove them. Luckily now I'm running a B280F engine and they all came right out without issue.

I used permatex anti-seize that is high temp.

I used copper nuts that came with the studs.

http://dmctalk.org/showthread.php?16823-Best-Exhaust-Manifold-Gaskets

You will get more suggestions on this but this is my experience. If I had to do it again, I'd still go with DPI's SPEC exhaust. It sounds great, looks great and it hasn't deteriorated like the UK's. I've had it for nearly 6 years now.

EDIT: As an added bonus, you can ditch the stock heat shield with DPI's exhaust since it has one built in.

[er1c]

"they basically told me I'm SOL"

Bummer dude... What does SOL mean ?

[jackb]

"they basically told me I'm SOL"

Bummer dude... What does SOL mean ?

Shit outta luck.

I’ve had a DPI exhaust for about 9 years now, very happy with it. First cat-less, then added cats when I moved to a state requiring emissions.

[painterdave72]

I have the stainless uk exhaust and it is great.. it has never rusted and has been on my car for about 10 yrs.. maybe you got a bad one somehow??????

[David T]

Maybe the salt air in Florida got it? Some alloys of S/S react badly to salt or Chlorine. Another thing that can wreak havoc with an exhaust system is lots of short trips. You never get the exhaust hot enough to vaporize all of the water and it sits in the pipes and eats them up. That's why you see tiny holes in mufflers, to let any water drain out.I haven't seen a lot of complaints about S/S exhausts corroding so it might be something particular to your car, the way you use it, how it is tuned, or it's environment.

[fmj78]

Be careful what "stainless" exhaust you get. When I first replaced my exhaust, I went with the UK "stainless" version. It turned into a rusty heap. I contacted them with photos since it has a lifetime warranty and they basically told me I'm SOL. Nice, after spending over a grand on a stainless exhaust.

http://dmctalk.org/showthread.php?12355-DPI-Spec-I-v-UK-Exhaust-Comparison

My second and current exhaust is DPI Spec I. I have had it for years now and have had zero problems. Since I am in Florida, I originally went with cat delete pipes. After every drive I noticed I smelled like exhaust so Josh was kind enough to swap out the delete pipes with catalytic converters and I can now enjoy arriving at my destination exhaust smell free.

I purchased a stud kit and exhaust gaskets from Rob Grady. I went with a stud for every hole around the exhaust ports (4 per) because in my experience with only using two per port, I'd end up with a leak. Removing the original studs may be a challenge however, I know when I had my original engine I broke a few trying to remove them. Luckily now I'm running a B280F engine and they all came right out without issue.

I used permatex anti-seize that is high temp.

I used copper nuts that came with the studs.

http://dmctalk.org/showthread.php?16823-Best-Exhaust-Manifold-Gaskets

You will get more suggestions on this but this is my experience. If I had to do it again, I'd still go with DPI's SPEC exhaust. It sounds great, looks great and it hasn't deteriorated like the UK's. I've had it for nearly 6 years now.

EDIT: As an added bonus, you can ditch the stock heat shield with DPI's exhaust since it has one built in.

Ohh is there any info out there on B280F swap? I'm thinking of a re-power when I do the frame repair job.

[jamesrguk]

Be careful what "stainless" exhaust you get. When I first

http://dmctalk.org/showthread.php?16823-Best-Exhaust-Manifold-Gaskets

You will get more suggestions on this but this is my experience. If I had to do it again, I'd still go with DPI's SPEC exhaust. It sounds great, looks great and it hasn't deteriorated like the UK's. I've had it for nearly 6 years now.

EDIT: As an added bonus, you can ditch the stock heat shield with DPI's exhaust since it has one built in.

Worth noting, just for the sake of balance, that the 'UK' exhaust manufactured/stocked by DeLoreanGo in the UK is not the same as the original one which you mention above, I can't comment on quality of the current one, other than to say that having seen it in the flesh on numerous cars it looks very well made and is extremely popular.

I have one of the original 'UK' ones, now some 14 years old, and I drive my car in all weather over in the UK (and live by the sea incidentally) and it's still good and solid after that time so I'm very pleased with it.

I remember seeing photos of yours (or possibly someone else's) and it was really rusty, very odd.

J

[dn010]

I should have clarified the exhaust in question was from stainless-exhaust.com over in the UK, not DeLoreanGo etc. This was back when there were only two choices: the UK exhaust from stainless-exhaust or DMCH's first release of its performance exhaust. I originally purchased DMCH's but had a change of heart when I opened up the box and saw the quality. I returned it and then went with stainless-exhaust because I thought it would hold up better than DMCH's coated steel exhaust. I don't know what happened to mine, I do believe it was just that I got a bad one since this was very early in production but the company could have still looked into it and helped me out, I guess that is what happens with some companies when you're thousands of miles away, it's just easier to tell you it's supposed to look like that and that's the end. It was probably mine that you saw, it just a heap of rust from end to end.



Worth noting, just for the sake of balance, that the 'UK' exhaust manufactured/stocked by DeLoreanGo in the UK is not the same as the original one which you mention above, I can't comment on quality of the current one, other than to say that having seen it in the flesh on numerous cars it looks very well made and is extremely popular.

I have one of the original 'UK' ones, now some 14 years old, and I drive my car in all weather over in the UK (and live by the sea incidentally) and it's still good and solid after that time so I'm very pleased with it.

I remember seeing photos of yours (or possibly someone else's) and it was really rusty, very odd.

J



Maybe the salt air in Florida got it?

I did not live in Florida when the rust happened.

[dn010]

Ohh is there any info out there on B280F swap? I'm thinking of a re-power when I do the frame repair job.

There is info on this over in the EFI section, look for 3.0 swap. The 3.0 is pretty much the same as the B280F but has a larger displacement (2.8 vs. 3.0). Any engine swap is a lot of work but this one is the easiest to do because you don't need any special adapters for the transmission, you don't have to cut out/weld/adapt to a different engine and you can still get parts (like the exhaust) that will still fit without requiring major modification. The DPI exhaust fits the B280F heads just fine but there was a small notch in the casting that the flange was just hitting, I had to grind a small part of the notch down so it would sit flush.

It might be the easiest swap to do but don't expect a huge increase in performance with the 2.8 / 3.0. If you're looking for power you'll need to pick a different engine.