Rare M2 Performance Carbon Fiber Airbox Intake for 1992-2002 RX-7 FD3S
For SaleEngine - Intake/Fuel
-
Price
$650• OBO
- Location Portland, OR, 97232, USA
- Condition Used
- Compatibility
| Make | Model | Year |
|---|---|---|
| Mazda | RX-7 | 1992 - 2002 |
Description:
Genuine M2 Performance Carbon Fiber Airbox Intake for a 1992-2002 FD3S 3rd-gen RX-7. Rare period-correct piece. No yellowing or heat damage with a very good gloss finish that has only been cleaned, not repolished. There's a small area where the gloss was rubbed off as seen in the pictures. No cracks, and all the tabs are in place. I'd say it's in very good condition for its age.
The filters are probably original and although I cleaned them with K&N cleaner, I did not oil them and they should probably be replaced.
This will work for stock twin setups and would be pretty ideal for offset V-mount intercooler setups to keep the hot air separated.
I think they stopped making these in 2004. It's one of those very rare period-correct parts that actually still perform well-enough for a modern build.
It's already packaged in a double box and ready to ship out. 24x18x10"inch at 10lbs, from Zip code 97232, if you'd like to get an idea of shipping. It is also listed on eBay, which will tell you an accurate shipping price: https://www.ebay.com/itm/168288959088
Price is $650 USD, or best offer.

On the contrary, I got way too many messages at once, and I wasn't able to get shipping quotes with enough time for buyer to make a decision and pay before going down the list. I think everyone knows that Facebook Marketplace isn't quite the "ideal" place to sell parts.
So yes, everyone, I had posted this on Facebook a couple days ago for $200 OBO (and I got a LOT of better offers). So I acknowledged my mistake, apologized to every single person that wrote me, and then I did what I thought was the most fair thing to do at that point and I posted this properly to eBay.
Maybe you are upset at me that I pulled it and upped the price, and I can understand that. I don't know if you were interested, but if you were, at least now you have a proper chance to get this. But if you're just bitter that someone is trying to charge a fair price for a rare part and run a fair sale for it, then I'll take that. You obviously know more than I knew about this part, so you would know that $200 is an absolute steal in this condition. I'll point out that there were a few people who wrote me and replied that I was selling this for way too little (thanks for looking out for me), but most people were all too eager to take advantage of me before I knew what this part was.
So, again, I'm offering this on eBay, already packaged, with a fair shot for everyone to buy this, along with another apology to everyone and an acknowledgment that I didn't do this right the first time around. And if you can't accept that, then I don't know what else I can do for you.
I use to admin this site and also was a lead here in the classifieds-- funny enough, Ebay links are against club rules so this thread should never have been approved in the first place
I use to admin this site and also was a lead here in the classifieds-- funny enough, Ebay links are against club rules so this thread should never have been approved in the first place

I searched for the marketplace rules, but couldn't find any sticky threads or any clear list of dos/don'ts. I found a summary of the rules on Google and it said that you must list photos and a price, but didn't see anything forbidding a link. I can remove the eBay link if needed.
I appreciate all offers, thank you. However, the best offer is well above $200 at this point. Reimbursing for shipping cost would be mandatory, and I'd also appreciate covering a PayPal/Venmo fee if applicable. I listed the package dimensions and my Zip code if you want to get an idea of the shipping cost.
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Why not just take the highest offer you received and call it a day? Good for you and good for them.
Either way, all the best.
I wonder if they were trying to run a duct from the bumper?
Whelp. Seller. I’d probably update the post / listing to let people know this has been modified and they’ll have to figure out how to secure this thing themselves.
You're correct. I can't find many pictures online, but here's one that was selling (for $650) on RX7Parts.com a while back that shows the difference. I imagine they thought it would increase flow, or maybe they had a duct of sorts. It's nothing visible, and although not ideal, I don't think it would impede mounting it. It certainly wouldn't be loose in the engine bay.
You're correct. I can't find many pictures online, but here's one that was selling (for $650) on RX7Parts.com a while back that shows the difference. I imagine they thought it would increase flow, or maybe they had a duct of sorts. It's nothing visible, and although not ideal, I don't think it would impede mounting it. It certainly wouldn't be loose in the engine bay.
A long standing member, that took the time to look at your listing, makes an eagle eye observation.
Your response, assuming to assuage a potential buyer is to say “nah, it’s fine”.
Buddy - the ONLY mounting points on that thing are gone. It will only be held in place by the tension on the hoses connecting it.
Get what you can for it, but don’t all of the sudden become an expert because you’ll pocket a few hundred dollars more than you thought and WAY more than you originally listed it for.
As it stands, it’s a cool piece with no mounts and filters that need to be replaced. You happen to know the part number for filters from K&N a buyer will need? Are you sure K&N still makes them?
At the very least you should probably break out a ruler and measure them (and the opening diameter) and see if you can’t locate them on the K&N site.
Again, all the best.
A long standing member, that took the time to look at your listing, makes an eagle eye observation.
Your response, assuming to assuage a potential buyer is to say “nah, it’s fine”.
Buddy - the ONLY mounting points on that thing are gone. It will only be held in place by the tension on the hoses connecting it.
Get what you can for it, but don’t all of the sudden become an expert because you’ll pocket a few hundred dollars more than you thought and WAY more than you originally listed it for.
As it stands, it’s a cool piece with no mounts and filters that need to be replaced. You happen to know the part number for filters from K&N a buyer will need? Are you sure K&N still makes them?
At the very least you should probably break out a ruler and measure them (and the opening diameter) and see if you can’t locate them on the K&N site.
Again, all the best.
I acknowledged exactly what Narfle said and quoted him, and told him he's right. (Narfle, maybe I should have thrown in a "thank you.") I don't see where you are finding fault. I even tracked down a photo for everyone to see.
It's correct that when I posted it on Facebook I did not know the value, but when I came "here" to rx7club.com, I had a better idea of what it was and the value.
I am going to get what I can for it, in a designated time frame. That's exactly what I'm doing. That's the point of an auction.
Maybe you don't like my "buy it now" price, and that's okay. My starting bid is $400, so anyone is welcome to bid. Are you upset that I'd like to get more than $200 for it? Are you upset that RX-7s go for much more than they did 15 years ago? I don't know what to tell you.
You're coming off real hot on me and projecting a lot that isn't accurate. I'm a seasoned car hobbyist that predates F&F, but my friend I am only a hobbyist. I did reach out to an expert friend of mine before posting here, and he told me more about it. Someone who has one that's not in as good of shape as this one.
I didn't come here for an "educated take on it." I came here because this is where something with more rarity and value should be posted, not on Facebook Marketplace.
I've taken a lot of photos. I'm not hiding anything. I'm happy to get measurements when I get home, if anyone wants them, but you're beating me up for not already doing that. I think you'll find plenty of sellers who are far less honest and clear and far less polite than me.
The air filters are still made by K&N. They are part number RB-0720. The inlet is 2.5"in and 6"in in length, with a total 3.5"in diameter.
https://www.summitracing.com/parts/knn-rb-0720
Finally, to everyone else: if there's anyone who is looking for this part, in the condition that it's in, then make your best offer. I'm not looking to get every dime out of this; a fair price is good with me. But as many people have already told me, $200 is probably too low.
I acknowledged exactly what Narfle said and quoted him, and told him he's right. (Narfle, maybe I should have thrown in a "thank you.") I don't see where you are finding fault. I even tracked down a photo for everyone to see.
It's correct that when I posted it on Facebook I did not know the value, but when I came "here" to rx7club.com, I had a better idea of what it was and the value.
I am going to get what I can for it, in a designated time frame. That's exactly what I'm doing. That's the point of an auction.
Maybe you don't like my "buy it now" price, and that's okay. My starting bid is $400, so anyone is welcome to bid. Are you upset that I'd like to get more than $200 for it? Are you upset that RX-7s go for much more than they did 15 years ago? I don't know what to tell you.
You're coming off real hot on me and projecting a lot that isn't accurate. I'm a seasoned car hobbyist that predates F&F, but my friend I am only a hobbyist. I did reach out to an expert friend of mine before posting here, and he told me more about it. Someone who has one that's not in as good of shape as this one.
I didn't come here for an "educated take on it." I came here because this is where something with more rarity and value should be posted, not on Facebook Marketplace.
I've taken a lot of photos. I'm not hiding anything. I'm happy to get measurements when I get home, if anyone wants them, but you're beating me up for not already doing that. I think you'll find plenty of sellers who are far less honest and clear and far less polite than me.
The air filters are still made by K&N. They are part number RB-0720. The inlet is 2.5"in and 6"in in length, with a total 3.5"in diameter.
https://www.summitracing.com/parts/knn-rb-0720
Finally, to everyone else: if there's anyone who is looking for this part, in the condition that it's in, then make your best offer. I'm not looking to get every dime out of this; a fair price is good with me. But as many people have already told me, $200 is probably too low.

To properly quote you:
”It's nothing visible, and although not ideal, I don't think it would impede mounting it. It certainly wouldn't be loose in the engine bay.”
You don’t think having the ONLY mounting points sawed off would impede mounting it? You think it wouldn’t be loose in the engine bay being secured by hose clamps and only hose clamps?
I know it *sounds* like I’m being rude - but I’m really not. I’m being critical of your assessment. You didn’t mention the mounts cut off initially, because you didn’t know. That’s fair. But don’t downplay it. If I’m off base, ok. But I think you’re trying to paint a rosy picture when confronted with inconvenient facts.
Also, I hope you get all the money for it. Just be accurate about it so the buyer knows what he’s getting.

I think there's someone out there who wants to give this imperfect, but still very nice, airbox a forever home. Even with the cut area, I think this will do a great job of filtering air, drawing air separated from the intercooler, and I do not think it's going to fly away when driving.
So, even though MattGold wants this to continue to sit on my parts shelf forever, if someone else likes this airbox and wants to put it on their car, please bid high and bid often.
~ GW
A long standing member, that took the time to look at your listing, makes an eagle eye observation.
Your response, assuming to assuage a potential buyer is to say “nah, it’s fine”.
Buddy - the ONLY mounting points on that thing are gone. It will only be held in place by the tension on the hoses connecting it.
Get what you can for it, but don’t all of the sudden become an expert because you’ll pocket a few hundred dollars more than you thought and WAY more than you originally listed it for.
As it stands, it’s a cool piece with no mounts and filters that need to be replaced. You happen to know the part number for filters from K&N a buyer will need? Are you sure K&N still makes them?
At the very least you should probably break out a ruler and measure them (and the opening diameter) and see if you can’t locate them on the K&N site.
Again, all the best.
I acknowledged exactly what Narfle said and quoted him, and told him he's right. (Narfle, maybe I should have thrown in a "thank you.") I don't see where you are finding fault. I even tracked down a photo for everyone to see.
It's correct that when I posted it on Facebook I did not know the value, but when I came "here" to rx7club.com, I had a better idea of what it was and the value.
I am going to get what I can for it, in a designated time frame. That's exactly what I'm doing. That's the point of an auction.
Maybe you don't like my "buy it now" price, and that's okay. My starting bid is $400, so anyone is welcome to bid. Are you upset that I'd like to get more than $200 for it? Are you upset that RX-7s go for much more than they did 15 years ago? I don't know what to tell you.
You're coming off real hot on me and projecting a lot that isn't accurate. I'm a seasoned car hobbyist that predates F&F, but my friend I am only a hobbyist. I did reach out to an expert friend of mine before posting here, and he told me more about it. Someone who has one that's not in as good of shape as this one.
I didn't come here for an "educated take on it." I came here because this is where something with more rarity and value should be posted, not on Facebook Marketplace.
I've taken a lot of photos. I'm not hiding anything. I'm happy to get measurements when I get home, if anyone wants them, but you're beating me up for not already doing that. I think you'll find plenty of sellers who are far less honest and clear and far less polite than me.
The air filters are still made by K&N. They are part number RB-0720. The inlet is 2.5"in and 6"in in length, with a total 3.5"in diameter.
https://www.summitracing.com/parts/knn-rb-0720
Finally, to everyone else: if there's anyone who is looking for this part, in the condition that it's in, then make your best offer. I'm not looking to get every dime out of this; a fair price is good with me. But as many people have already told me, $200 is probably too low.

To properly quote you:
”It's nothing visible, and although not ideal, I don't think it would impede mounting it. It certainly wouldn't be loose in the engine bay.”
You don’t think having the ONLY mounting points sawed off would impede mounting it? You think it wouldn’t be loose in the engine bay being secured by hose clamps and only hose clamps?
I know it *sounds* like I’m being rude - but I’m really not. I’m being critical of your assessment. You didn’t mention the mounts cut off initially, because you didn’t know. That’s fair. But don’t downplay it. If I’m off base, ok. But I think you’re trying to paint a rosy picture when confronted with inconvenient facts.
Also, I hope you get all the money for it. Just be accurate about it so the buyer knows what he’s getting.

I think there's someone out there who wants to give this imperfect, but still very nice, airbox a forever home. Even with the cut area, I think this will do a great job of filtering air, drawing air separated from the intercooler, and I do not think it's going to fly away when driving.
So, even though MattGold wants this to continue to sit on my parts shelf forever, if someone else likes this airbox and wants to put it on their car, please bid high and bid often.

Thanks for the throwback guys. There's nothing more nostalgic on this forum than a good back and forth "RX7Club Argument"
With that said, it's lame that you posted your ebay link here and are encouraging a bidding war. I am going to report this for sale post with hope that it will be removed. This section isn't for cross posting ads.
I use to admin this site and also was a lead here in the classifieds-- funny enough, Ebay links are against club rules so this thread should never have been approved in the first place

1) There's no longer an approval process for marketplace posts.
2) I need to find the current rules... The old Classified rules got swept away when the Marketplace replaced it.
I don't have a problem with this Ad but I'm just one voice of many so will consult with my peers.
With that said, it's lame that you posted your ebay link here and are encouraging a bidding war. I am going to report this for sale post with hope that it will be removed. This section isn't for cross posting ads.
Also, it's even more lame to be a snitch-*** tattletale narc when I'm not even breaking any posted forum rules.
"bid high and bid often" is inflammatory language that promotes a bidding war. It's quite different than saying something like "Send your best offers". Anyway, considering that you only created an account here to be an opportunist, hopefully you'll move on with your miscreant tactics after your damaged part sells.
"bid high and bid often" is inflammatory language that promotes a bidding war. It's quite different than saying something like "Send your best offers". Anyway, considering that you only created an account here to be an opportunist, hopefully you'll move on with your miscreant tactics after your damaged part sells.
My asking price has never changed on this thread: $650 OBO (that means "or best offer") and I created my account over 6 years ago. You should be ashamed of yourself and your inability to reason intellectually.
~ GW
I will not sell this for $50 so you can scavenge the parts from it, but yes, I will take you up on the offer of a photo(s) to see what's missing. I would appreciate that. Thanks. I would also still offer to measure, scan, or trace the aluminum parts if you're interested in remaking them. It's just a flat piece with some 2.5" pipe welded on, and some smaller OD pipes for the recirculation hoses.
My asking price has never changed on this thread: $650 OBO (that means "or best offer") and I created my account over 6 years ago. You should be ashamed of yourself and your inability to reason intellectually.

If you want to talk about degeneracy, I encourage you to do some
introspection before sounding off on others.








