Can't touch the factory piece, but found a DEC with the inlet flanged pipes attached.

Anybody use this? Other ideas for this? Esp. from sponsors?

I pretty much need the whole system from end of headers-back, and will need to show proper emissions set-up.

Only thing, it doesn't seem to accept an air feed.

 

several 928 suppliers have direct bolt in cats i beleave. I am pretty sure that they do not use the air pump, but the technology of cats has advanced since 84 and I am all but certain that the emissions will be as low or lower with these as compared to stock cats; especially after 23+ years.

 

Get an 85 early 86 big dual cat with dual exhaust. Both pipes go down the left side ,I used that on my wife's 1979 it worked great !

 

I had a pair of aftermarket cats for 50 plus shipping. Another '84 928 owner was able to take one of them to a muffler shop and have it welded in and they were able to weld in a bung for the o2 sensor. PM if interested.

 

Register it in a non-emissions county.

Is it a US or Euro? If it's a Euro/ROW you can get a permanent waiver. Does it have headers or stock manifolds? If it's stock manifolds, check with Beerfish (in Great Falls). He may still have a stock US exhaust laying around.

 

Chris,
Add a Y pipe with a high flow cat and a cat back system.
The later cats do not need an air feed so you can ditch the smog pump and piping to save weight.
You will need a smaller belt for the fan after the smog pump is removed.
Needless to say I have all in stock 8>)
Roger

 

I think he needs the smog equipment to get it registered most states you need the air injection unlike Texas where there is little enforcement of the "rules".

 

In VA it will need to pass visual, that is if the tech is either (or both?)

1) out to get you. Most seem to be.
2) knowledgeable about a car he probably has never seen before.

You have to be careful because if they fail you they can write it down in some computer somewhere and it is a pain in the *** to get everything straightened out, esp. in case #1.

They actually do a dyno run and a sniff test in VA. I was shocked! I haven't brought my 928 down here yet, I'm hoping to learn "where to take it" first so it will pass with minimal BS.

 

That's the one thing I like about having OBDII in the Jeep. Plug in, run a scan, unplug, done. Then again, the 928 is easier... registered in a non-emissions county.

 

I'm in a non-emissions county, so at least I don't have to worry about the actual emissions test readings for this car.

According to code, the garages still must inspect visually for complete and apparently operational original emission control equipment or aftermarket with the same functionality. Cats can't show signs of being sectioned with a torch, which is a big problem for my current set-up. And, they are supposed to check against the engine compartment diagram for hose routing for carbon canisters and air pumps or go to their references . Can I beat it? Probably, but there should be a way to restore the function without having to fabricate parts.

Rather than have to play roulette every year, just thought I'd try to find a bolt-on replacement. DEC is the only one so far that I've found that mimics the original, and it doesn't seem to have the air port. So, maybe I can adapt the 85 set-up with aftermarket dual in/ dual out, so long as I find a unit with an air port.

A full aftermarket exhaust assembly for this car should be a bit easier to source. It is a USA version, BTW.

 

I bought a pair of DEC cats for a BMW 540 i used to have and wouldnt suggest them.

If your going to replace cats and your have failed, either buy someone OE cats thats currently runnng an Xpipe, or buy yourself an Xpipe with cats.

I would think the DEC cats should be about $400 based on what i paid for the BMW's, and I dont know what the Xpipes sell for but they are a proven power adder. The DEC stuff is very basic like something you would find from the local muffler shop. It does the job, but its very average.

 

Thanks, Ryan. That helps.

 

Drive out to the middle of nowhere. Find a local auto parts store. Ask where you can find a friendly inspection station.

Mine passes. This year I'll have to get the waiver because I moved to an emissions county.

 

Maybe your right. There's a pretty strong enforcement presence on the inspection stations in the counties around the state capital, but it supposedly tapers the further away you get.

Meanwhile, today I go downtown to pay an $87 fine for expired inspection. I've got to get control of the madness.

 

When you say average, are simply stating that they are no better and no worse then the OEM cats?