My butt dyno says the stage 1 JCW intake breaths better than the DOS at high rpms.

I'm not sure why, maybe the size and shape of the JCW S1 air box and dry cone filter( more of a cylinder shape really). However I will miss the DOS intake sound, btw with the DOS intake the Accessport JCW stage 1 tune makes the intake much, much louder than the stock tune! I was thinking about cutting a hole and attaching a snorkle to the JCW S1 airbox and running it through the bulkhead DOS hole. Maybe the best of both worlds?

 

I've been wanting an AP but his is the one concern I have about it. While they apparently do have some more specific maps for various aftermarket parts their staged maps seem pretty generic and on the safe side (they have to err on the side of caution in that respect) which might not be optimal for certain aftermarket products. Of course the best case scenario is to tune to the mods and not the other way around.

 

this has been said so many times before on here if people research. there are also lots of tests on various cars dyno proving they do nothing. i would only get one for the lovely sound but not for performance.

 

I can make the stage one JCW intake sound better, at least I think I can. So do you think thats gonna be better than the DOS? ( how do I research that question)

 

i think it will be better in you wouldn't need to buy a DOS but probably won't peform better. in all the other threads an open intake dosen't make any more power , so by putting holes in the stage one box it will loose the air tight seal it creates and will let in hot air. just search for JCW stage 1 intake vs on here and minitorque and mini 2 or even just google and you will find lots of info. also on here there was recently a you tube link to mighty car mods where they compared intakes on different cars and it made no more power or lost power over stock.
they are just for noise not power so if you just open up the stock one then yes it will be better because you didn't need to spend money on another intake and will still get the sweet sound.

if you do please let me no how it goes and show some pics if you can. i am in the same boat as you with a stage 1 jcw intake. i want the awesome sound but don't want to sacrafice anything or spend any more cash since i already have the best intake.

 

I'm not saying to drill a bunch of hot air holes ,I'm saying to duct the stage one JCW intake to the outside of the bulkhead as the DOS.




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Grrrrr! Got the first batch of dry filters on Tuesday. The flange lengths on all the filters were shorter than the prototype filters that we received a few months ago. I don't know what happened, but DoS has a whole bunch of filters that don't meet specifications.

I was on the phone all day with our manufacturer. They now know where communication broke down and fixing the problem is fairly simple. I'm now waiting for an ETA for the corrected filters. We now hope to have filters in hand two weeks from now.

Sorry for getting everyone's hopes up. We thought that we had "seen it all" over the course of developing this filter and the worst was over. Unfortunately, another curve ball has been thrown at our R56 CAI dry filter project.

-Clint

 

Bump for Updates!

 

Updates on the dry filter just posted on our Facebook page:
https://www.facebook.com/pages/Defen...61923377223959



Dry filters for the DoS CAI will be for sale on defendersofspeed.com late next week.

-Clint

 

Which JCW intake does my factory 2012 JCW have. I have read that it is different than some of the JCW intakes but not sure which ones and how it is different. I want to hear more turbo spool sound but not at the possible loss of performance.

 

You probably have the factory JCW car so the panel filter. Still a good intake.

I have the MCS with the JCW stage 1 kit. ( Stage 1 intake ) I have a cylindrical filter. As far as I know though they are the same just different filters So lol I'm giving as much info as I can.

Also, a guy I was speaking to at the mini dealership said that on the JCW intake there is like a valve that opens and shuts according to the RPM? is this true? If so I'd like to keep it open. Anyone read anything like this? or could link me?

 

Quick request for the folks interested in talking in-depth about JCW Intakes --

The content on this thread was started by a fan of DoS stuff, but it turned into a Q&A about the DoS CAI. As it turns out, it's been a good way for the NAM community to post comments and questions about this product as they come up. Unfortunately, it is becoming a tad muddled by JCW intake talk at present.

Could you guys potentially start another thread to discuss this stuff and post a link to the new thread?

Thanks much for your consideration of this request.

-Clint

 

got mine the beginning of last week and after a full week of driving I have to say I really like it. Well worth the money.

 

How is the install for this intake. Other than having to cut the access hole it looks like it should be a pretty straight forward install. Whats easier, cutting the access hole or purchasing a replacement bulk head with hole already cut?

 

If you have the extra money, I would suggest buying the precut bulkhead. At least for me, it was worth the extra money for the convenience. As far as the install, it's straightforward and Clint will provide you with excellent instructions with detailed photos.

 

About an hour to do it but yeah cutting the hole in the bulkhead was the pain. Still not that hard to do if you have the right size hole saw size.

 

How many bolts hold the bulk head on and is it pretty easy to remove?

 

4 bolts and you basically pull it out. Pretty easy to pull out and to replace.

 

So what size hole saw do you need?

 

The hole saw size is noted the CAI instruction manual. You can find it here:
http://defendersofspeed.com/instruction-manuals/

It's fairly unusual size and usually costs about $35 to $40 once you buy a mandrel for the hole saw. That being said, we offer a hole saw loaner program to save our customers some $$: http://www.defendersofspeed.com/hole...-installation/

-Clint

 

When will the filters be available for purchase?

 

I bought the bulkhead from Clint and had no issues installing. 1+ years with the DoS CAI and I still love it!!! Every gear head I have had in the Dread Pirate loves the sounds.

 

Hows he sound with the windows up using the DoS intake? I don't hear any turbo sounds with the windows up with stock JCW intake. My R53 had a DDM intake and was a very similar design to the DoS into the bulkhead, it really made the super charger very audible with the windows up.

I thought the noise maker was suppose to transfer sound into the cabin.

 

It's noticeable. Take a look a Onefish's video: . Mine is VERY similar to this.

 

That flutter is weird. Is that a different tune? When he is really on it and at WOT is this really a loud whistle?