Hey, I happened across a parts car that has an ocelot exhaust system. It's on a 4 cyl car. I looked at the Fierostore website, and they list different part #'s for 4 or 6 cyl. They look identical and even have the same description, with both using 2" pipe. I'm not sure that I would install it on my V6 Fiero anyway, but was just wondering.
Generally the 4cyl cars only have a single output vs. the V6 cars have dual outputs. They may have just used the same picture on the website, but send them a note and ask them as they are very helpful at answering questions.
Sorry Patrick, but yes they do look the same. I can't do a screen shot, but on the left side of their website, click on exhaust, then performance (yeah I know). It shows the V6 options first, then the 4 cyl. It does show the one you found, and also the one that I am talking about that is dual GT exhaust.
I sent them an email but will have to wait until tomorrow for a reply.
...on the left side of their website, click on exhaust, then performance (yeah I know). It shows the V6 options first, then the 4 cyl. It does show the one you found, and also the one that I am talking about that is dual GT exhaust.
Same price for both. If there's any difference, it can't be much.
I installed a factory GT exhaust on a duke in my '84. I also had an '85 GT rear fascia installed (with dual-exhaust cutouts), but other than that, I believe no modifications were required. (This was quite awhile ago.) The exhaust bolted right up to the cat.
[This message has been edited by Patrick (edited 02-14-2023).]
The exhausts should be the same from the cat back but I have read there's a slight interference on the 88 cradle when using the Ocelot.
The Indy, and 86 SE and 87 SE model 4-cylinder cars all had quad exhausts. I don't know of any 88 4-cylinder with quad exhaust. There were only the 88 base model Duke with single exhaust, the Formula V6 and the GT V6 with dual exhaust.
The most "sought after" exhaust system for the Fiero was the Borla exhaust that was offered for a few years back in the mid 2000s. I haven't seen one in a long time, but it was a fantastically made system. Perfect mandrel-bent pipes with stainless steel, perfectly located hangers in all the OEM spots, etc... it was great.
As for the Ocelot system. This is what I have on my car too. it's a good system, but the fitment requires a little bit of adjustment to get it to sit right.
The Fiero had some strange options... 1984 was different, and I think 1988 was a little different also. But you also had the "GT" style, and then the non-GT style. You also had dual exhaust, and single exhaust. Most people don't realize this, but some 4-cyl Fieros also came with dual exhaust. In 1986 and 1987, they offered the "SE" model Fiero which had the aero package. This package had dual exhaust, and even the auxiliary gauge pod on the center console for the 87... but it had a 4 cyl engine. I'd say it's probably the rarest Fiero by the numbers (not counting the Mera)... there were only ~1,200 87 SE Fieros with 4 cyls. But it at least shows that the exhaust systems are basically interchangeable.
If you like the Ocelot, it IS an upgrade from the factory exhaust system. The factory exhaust system wasn't garbage, it was stainless steel as well and... I don't know if I'd call it mandrel bent, but it wasn't crush-bent. The big difference between the Ocelot and factory exhaust system (trying to recall from memory from over 12+ years ago), I THINK the factory exhaust system had 1-7/8ths inch tubing, where as the Ocelot was a solid 2" tubing. But the bends were ever so slightly less quality than that of a factory Fiero... but you still saw a benefit. Plus, the Ocelot muffler was still a bit more performance oriented (like a Magnaflow).
The reply from fiero store is that they are the same. I didn't get an explanation as to why there are two different part numbers, though. So anyway, there's that.
I forgot about the 86 87 SE 4 cyl models having dual exhaust. This car I found is an 87 coupe. It's definitely the ocelot, and not a swapped factory exhaust. I may go ahead and get it.
Originally posted by 82-T/A [At Work]: The Fiero had some strange options... 1984 was different, and I think 1988 was a little different also. But you also had the "GT" style, and then the non-GT style. You also had dual exhaust, and single exhaust. Most people don't realize this, but some 4-cyl Fieros also came with dual exhaust. In 1986 and 1987, they offered the "SE" model Fiero which had the aero package. This package had dual exhaust, and even the auxiliary gauge pod on the center console for the 87... but it had a 4 cyl engine. I'd say it's probably the rarest Fiero by the numbers (not counting the Mera)... there were only ~1,200 87 SE Fieros with 4 cyls. But it at least shows that the exhaust systems are basically interchangeable.
You also had two types of dual exhaust. You could have dual exhaust with plain tips, or dual exhaust with megaphones.
I've had both; plain-tipped dual exhaust on my 85 SE, and megaphone-tipped dual exhaust on my previous 85 GT.
To directly answer your question... I can't imagine that there would be any difference between the 4 cylinder Ocelot and the 6 cylinder Ocelot, provided both of them had the dual outlets.
To expand on that a bit, I have an 88 coupe. I added a dual outlet system to it, from an earlier car. Likely either an 86 GT or an Indy. The guy selling the exhaust had parts from both, so who knows? It fits and sounds just fine.
I'll also add that the "cat delete pipe" that they sell for the 88 V6 will also work with the 88 4 cylinder. It used to not mention the 88 4 cylinder at all. (That may have changed.)
[This message has been edited by Raydar (edited 02-18-2023).]
