DIY Swiss Cheese Mod

[Sitrane]

Here is a guide I made for the MKIV Area of JettaJunkies. Figured I'd put it down here too!

[Gargamelmk2]

This is by far the best step by step DIY...nicely done Sitrane

[Sitrane]

Thanks man. Glad you like it! I will most likely continue doing them every time I do a mod to my car. Hopefully these DIY guides will help others like me.

[TheRealFeeny]

Yea very nice DIY. Lots of clear pics with good instructions. A+

[Sitrane]

Thanks man I'm glad you liked it! I think this weekend I'm going to attempt to do a DIY on tinting your lights. I know there is already a DIY for that on here somewhere, but I figured, "Hell...if I'm gonna do the project anyway, I might as well take some pics while I do it."

[domswe]

a couple questions, i have a '98 TDI, so its a diesel, will this work for my car as well? and two does it have an improved sound? if so wat does it sound like?

[Sitrane]

I don't see why it wouldn't work for a diesel but you should probably ask someone more experienced with them, as I am not. As per to the sound, yes, there is a TREMENDOUS sound difference. At around 2.5k RPM's you hear a very deep rumble. I don't have a sound file but I can try and get one posted. You don't get the air sucking sound you would from a CAI but you do get a nice deep rumble that sounds pretty badass if I do say so myself.

[nmjetta]

Would it work better to cut a hole like this guy did? I did the swiss cheese holes, but can't hear a huge sound difference. Maybe doing a large hole and the small ones is better, IDK.

[Sitrane]

Putting a big hole like that will not give you any sound difference, plus it opens it up for nasty things to get it. The holes allow you to get resonance on the side and I SWEAR you WILL hear a difference, especially from 2.5k RPM's and up; I even here a nice, "VRMM" when I start my car.

I recommend you stick with the holes. If you follow my DIY, I havent changed it at all and it sounds wonderful. =)

[vento:)]

someone post a video with of the sound of you SCM!

[Sitrane]

SCORE! My friend let me borrow his camera, so I'm gonna record a vid tomorrow and get it posted for you guys.

[Sitrane]

Here you all go. This is a video recording of the Swiss Cheese Mod in action. Enjoy.

http://www.youtube.com/watch?v=NTxUVcR1M4s

[domswe]

has anyone tried this on a MK3? can it be done? i have my airfilter out and it looks nothing like yours (being an MK4) ill post a pic of my filter now

[Sitrane]

It should work, just drill the holes and you'll be fine.

[992LWolf]

yea it would work it did it to mine.

[nopain_allagin]

i just did this yesterday , sounds good to me thanks

[2.0AUTO_TURBOLESS]

dude, i have a 2002 gls with no turbo, and its automatic with 108k miles on it. I was thinking about an ecu, short ram, and a catback exhaust. i found a PCD performance chip for $80, but people are telling me ECU's cost $300, whats the deal? am i missing something?

[mikey]

does the swiss cheese mod have any effect on the way the air system is intended to work and does it have any performance advantages

[vdublove]

on the mk3 do you drill through the lid seeing as you cant take off to bottom half? or....wat. i wana do this so help woukld be greatly appreciated

[vento:)]

no you drill through the bottom. you can take the bottom half out just unclip everything to it.
ps i think i saw you in leominster the other week

[Boost Addicted]

Originally Posted by mikey

does the swiss cheese mod have any effect on the way the air system is intended to work and does it have any performance advantages

No and nope. Just for sound/quicker turbo spool (if you have a turbo, that is lol).

[Dlamb19]

soo did you take out the box's air intake?

[Boost Addicted]

Nope, I kept that. Keeps a small stream of cool air flowing in. Another thing you can do is go to your local home depot. You can rig yourself a pretty cool ''CAI''. Mount the piping somewhere where I'tll get cold air pushed in (behind a grill, or down low) and mount it about 2 inches away from the bottom of the stock airbox where the holes are. When the engine is under partial or full throttle, you'll be getting most, if not some, of that ambient air. And unlike a CAI, you have no chance of sucking in water.

[vdublove]

ya vento you did i saw you too haha. thanks for the help im gunna look into doing this.

[Edtron]

isnt a cold air intake better?

[vdublove]

yea. but this is free

[vdublove]

i did this to my car today and it sounds sick. i like doing all these little things to my car cuz i dont feel its worth putting a lot of money into my automatic . need to get mad bills and buy a much better vee dub

[Boost Addicted]

Originally Posted by Edtron

isnt a cold air intake better?

Not IMO.

[*west*]

Just did this to my 03 2.0 and now it sounds mean. Really like it, thanks for the DIY.

[Sitrane]

Glad you liked it. =)