Got those orange plugs 273-1P now what?

I received 2 plugs from Niagara caps and plugs. They are orange and part # 273-1P as was posted. I've read two different descriptions on what to do. One said open the airbox and plug the hole with one plug and that's it. The other said plug the box and plug the small bypass tube being careful not to let the plug get sucked into the intake? I was just wondering if anyone had that straigtened out yet or perhaps had some pics online of what they did. TIA.

same here, i am expecting the plugs any day, and would appreciate a couple of pics showing how they are to be installed. thanks

Me too...me too

well i did mine yesterday and you install it by taking off the little by-pass hose and install the plug into the airbox, you will note that the bypass hose has an extra lip that will not let the orange plug get sucked into teh airbox, and might i add that the sound diffrence is unbelievable!!!! i can't wait to get an exhaust now!!!!

NiveK, you only used one plug? I thought the other descriptions talked about using 2 plugs...?

Can some elaborate? What are they, where do they go, and what are they supposed to do? My search in 996 for orange plugs revealed nothing. Thanks.

what exactly, is this mod supposed to do? Sounds a little to simple to me for a hp gain. Is it purely for sound? Bobby

sound=hp gain does it not? I'll take a look under the hood and see if I can just figure this out myself.

Ok I've done the install and photographed the procedure. You can find the complete procedure at: Orange Cap Install Here is a sample photo: Larger photos and description are on the website above.

Nice pics. Good work! I will try this later. My new GHL exhaust seems to drown out that nice induction sound that is produced around 5,000 RPM, so maybe this plug is the solution

The plug produces a noticeable increase in sound from the intake, deeper, throatier and louder. Absolutely the best damn upgrade for the $ you can do!

It would be much better to remove the airbox silencer and then plug that port. Then either remove and replace the tb hose for a straight one, or modify it or plug where the silencer went. The main reason for doing any of it is to remove the silencer ala fabspeed kits etc, because it opens up a significant amount of area in the airbox. All other "mods" are a waste.

Just looked at the pictures... What if you used a double thickness of aluminum foil to cover the hole on the air box and then replace the hose/clamp back on it? I might just try it...

Yes, you can improve upon this mod, and perhaps the next time I want to open the airbox I'll take out the silencer. BUT for FREE and a quick 5 minutes, you can't beat this "mod".

where do you get these plugs and has anyone had them long enough to know if there are any problems. thanks.

I agree but why not take out the silencer and plug it there and then plug the tb hose that goes to that and you would actually be doing something with about the same amount of labor and cost

Simple answer to that. If you took the "silencer" block out it would create a larger hole in the airbox. The silencer block is the same part as the tube neck that comes up through the airbox which you plug with this orange plug. I took apart my airbox today to verify this and if you removed the silencer the orange plug would be too small to work anymore, you'd need some sort of larger size, or well maybe some duct tape or foil as someone mentioned previously...

I've thinking about this for a while... I seems that the hose that gets blocked with the orange plug by-passes the MAF sensor. If you block it, all air is forced through the MAF. But, why does the factory have air by-pasing the MAF? Ideally, you would want to pass as much air into the eng. Therefore, I would say that if you could somehow cut the silencer open but keep the hose unplugged, you would get the benefit of more noise and additional air flow into the eng. How does the MAF adjust for air passing behind it? Comments?

Actually what I saw was that the air that bypasses the MAF and goes into the silencer has nowhere to go. The silencer is just a closed plastic box, it doesn't vent into the main airbox so air can't really go around the MAF it just creates some sort of backpressure into the main airflow by allowing some additional dead air space, but not a different directional flow. Of course plugging the larger hole created by removing the silencer and replacing the factory rubber hose with bypass with just a straight hose would be the most effective and that's what solutions like the Fabspeed intake mod do, although for the life of me they seem way over priced for a plug and a hose, that ought to be $10 at Home Depot...

these orange plugs look an awful lot like a Dick Hoffman supercharger. Aren't the guys selling these plugs worried that Dick Hoffman might have a team of lawyers waiting to sue them for patent infringement?

my 'free' niagara caps arrived yesterday. it took all of 5-mins to install. wow! is all i can say. combined with the new ghl mufflers, at full-chat, this thing sounds bitchin! it's a matter of time before niagara catches on and discovers sample requests from 996 owners with no intent to buy i don't believe they sell in quantities less that 500 or so...

FWIW, I made my own plug this weekend from the bottom of an empty plastic jar of peanut butter (JIF). Just eyeballed the size, made it so it would lock against the inner lip in the rubber tube. As was mentioned before, with the GHL mufflers, it sounds really NICE! Probably worth 200HP

jiffy uses the 'wrong' plastic, we had mine on the dyno...300hp!!

I got mine in the mail today. I have PSE, and wanted to understand what sound or performance enhancement this will provide. I saw the site showing how to install 1 cap. Is that all you need to do, or is there another place to install the second cap?

Why do you 996ers do this. Is more intake induction sound the reason? Jeff

No need to install the 2nd cap, just hold onto it or give it to a friend with a 996 as well...

I can't answer for everyone but here are some possible reasons: 6) It's Free! 5) We've got nothing better to do 4) Those guys from "Queer Eye for the 996 Guy" said we needed more orange in our engine compartments. 3) The somewhat elevated engine noise can now be heard over BOSE audio system. 2) It makes our intakes "suck" more. And finally the #1 reason: 1) 996 owners are technically challenged, so if Martha Stewart can do it, 996 owners can do it too! - Episode 37 Martha makes fabulous holiday intake decorations using Kruger industrial smoothing plugs.

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So for us deprived in the UK. Any chance one of you want to send me one of the spares. They won't send samples to the UK :-(

What am I saying........ I already have the Fabspeed coca-cola setup.

And to think that elsewhere on this board there is a thread where 996 owners are making fun of "Ricer" mods.

JimB, Have you confused the Orange Cap mod with a Ricer Mod? The Orange Cap mod allows the owner to bypass the noise-reducing silencer box required for the 996 to meet European noise-pollution specs. It also enables smoother airflow into the engine for a modest performance increase. True it isn't as noticeable as say a turbo charger or a super charger, but the Orange Cap mod is a far cry from say a laundry rack drying wing stuck on the back or a coffee can exhaust pipe, lighted windshield washer nozzles, or faux carbon fiber hood, etc. I would also posit that a car with the orange cap is visually indistinguishable from a car without, thus the bling bling factor of most ricer mods is not present either. Assuming of course that someone doesn't make a "I've got the Orange Cap" bumper sticker and slap it on their car...

and i wrote my original post with a straight face, but ninerguru reminds us of how pathetic we sound at times...thats why i love this board, its the cyberworld version of bench racing. you have to know how to read between the lines...and with time, you know whos full of it and who's opinion you can trust in all seriousness, the bypass mod is noticeable and it does sound bitchin.

Ok, so if we can't have the bumper sticker, why not a badge and air intake complete with special grill to deliniate the special plugged cars from the great masses of those without.

Relax GR! I was just kidding. But since you brought it up, I don't think there is a big difference between kids doing silly things to their Hondas to make them sound or look better (in their eyes) and 90% of the modifications discussed on this board. Having said that, I say go for it. It's your car and your money and you should enjoy it however you want. Jim

90% eh? I had no idea that 90% of the mods discussed here fell into the ricer category. I better start talking about slappin on turbos or sumthin... The post before yours makes me think we need a special "Orange Crush" emblem...