Varis Undertray with modified Upper Diffuser

thompsac25 · 10-13-2017, 08:46 AM

Hey everyone,

I searched a lot but didnt find the pictures that I'm looking for (stupid photobucket pics no longer work).

I currently have an ARKYM rep diffuser, but I just picked up a brand new Varis Undertray. From my understanding, the only way that I'll be able to use both is to modify my ARKYM by cutting off the middle fins or doing something similar to the Varis itself. Does anyone have a process and pics on how to do this properly without butchering the cf? Alternatively, has anyone figured out if there are other diffusers (non-Varis upper) that would fit without modification?

Also, what are your thoughts on mixing carbon fiber weaves? All of the cf accents on my car are 1x1 with the exception of the Varis which is 2x2.

Thanks for any help!

Redd · 10-13-2017, 06:26 PM

You can't cut CF without damaging it

becausephilchow · 10-14-2017, 07:48 AM

I mean, since it won't fit anyways, I"d give it a shot to give it a trim. I'd cut the ARKYM for sure, not the VARIS, lol.

Worst case, doesn't fit anyways, and then you just order the VARIS Upper

thompsac25 · 10-16-2017, 08:03 AM

Quote:

Originally Posted by Redd

You can't cut CF without damaging it

Thats what I'm afraid of. Didnt know if there was a better/cleaner way than just using a dremel.

Quote:

Originally Posted by becausephilchow

I mean, since it won't fit anyways, I"d give it a shot to give it a trim. I'd cut the ARKYM for sure, not the VARIS, lol.

Worst case, doesn't fit anyways, and then you just order the VARIS Upper

I'm hesitant to cut up my ARKYM... fear of screwing it up, plus it was expensive ha. We will see what I end up doing I guess!

Narvin · 10-16-2017, 11:16 PM

Laser

MaximusB · 10-17-2017, 10:51 AM

You can cut CF without cracking it. I’ve done it several times for my other car. Best is to use air tool and cut off wheel. Don’t cut exactly where you mark it, leave a little wiggle room and hand sand it down to the marked line. Dremel will work too, I’ve used it to cut my CF hood for hood pins but it is hard to cut long straight line for your purpose.

If you’re worry I’d say go buy some cheap CF pieces off eBay to practice.

And use lots of masking tape so you don’t accidentally scratch the adjacent surface.

thompsac25 · 10-17-2017, 11:28 AM

Quote:

Originally Posted by MaximusB

You can cut CF without cracking it. I’ve done it several times for my other car. Best is to use air tool and cut off wheel. Don’t cut exactly where you mark it, leave a little wiggle room and hand sand it down to the marked line. Dremel will work too, I’ve used it to cut my CF hood for hood pins but it is hard to cut long straight line for your purpose.

If you’re worry I’d say go buy some cheap CF pieces off eBay to practice.

And use lots of masking tape so you don’t accidentally scratch the adjacent surface.

Helpful tips! Appreciate the info! Not sure if I'm ballsy enough to tackle this lol... we shall see! Thanks buddy!

BombaE90 · 12-16-2017, 11:10 PM

Quote:

Originally Posted by MaximusB

You can cut CF without cracking it. I’ve done it several times for my other car. Best is to use air tool and cut off wheel. Don’t cut exactly where you mark it, leave a little wiggle room and hand sand it down to the marked line. Dremel will work too, I’ve used it to cut my CF hood for hood pins but it is hard to cut long straight line for your purpose.

If you’re worry I’d say go buy some cheap CF pieces off eBay to practice.

And use lots of masking tape so you don’t accidentally scratch the adjacent surface.

Yeah, I did some work with a dremel on one of my old lips.

donut_boi · 06-08-2018, 04:51 AM

Reviving this thread to see if anyone else was successful in pairing other brand upper diffuser with the Varis lower diffuser.

BayE30 · 06-08-2018, 10:46 AM

you can cut CF, just have to apply tape on the cut line, and use an air powered jigsaw. i have done it many times, no problem.

donut_boi · 06-08-2018, 05:38 PM

Quote:

Originally Posted by SFCM3

you can cut CF, just have to apply tape on the cut line, and use an air powered jigsaw. i have done it many times, no problem.

Thank you, im actually looking for an upper diffuser that would fit without modification.

ShakeNBake · 06-09-2018, 03:18 AM

Quote:

Originally Posted by donut_boi

Quote:

Originally Posted by SFCM3

you can cut CF, just have to apply tape on the cut line, and use an air powered jigsaw. i have done it many times, no problem.

Thank you, im actually looking for an upper diffuser that would fit without modification.

The only upper diffusers that will fit with the varis undertray is varis and 3d design

donut_boi · 06-09-2018, 04:14 AM

Quote:

Originally Posted by ShakeNBake

The only upper diffusers that will fit with the varis undertray is varis and 3d design

Thank you so much!

10-13-2017, 08:46 AM	#1
thompsac25 Stance to make her dance 705 Rep 1,992 Posts Drives: 2022 G80 M3 Join Date: Nov 2013 Location: Cincinnati, OH iTrader: (33)	Varis Undertray with modified Upper Diffuser Hey everyone, I searched a lot but didnt find the pictures that I'm looking for (stupid photobucket pics no longer work). I currently have an ARKYM rep diffuser, but I just picked up a brand new Varis Undertray. From my understanding, the only way that I'll be able to use both is to modify my ARKYM by cutting off the middle fins or doing something similar to the Varis itself. Does anyone have a process and pics on how to do this properly without butchering the cf? Alternatively, has anyone figured out if there are other diffusers (non-Varis upper) that would fit without modification? Also, what are your thoughts on mixing carbon fiber weaves? All of the cf accents on my car are 1x1 with the exception of the Varis which is 2x2. Thanks for any help! __________________ *INSTAGRAM: thompsac_m3* YouTube: ACCELERATED MOTION 2022 G80 M3 6MT, FEMTO, BM3, KW, AWE, MAD, lots of carbon Last edited by thompsac25; 10-13-2017 at 09:18 AM..
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10-13-2017, 06:26 PM	#2
Redd Brigadier General 3894 Rep 4,155 Posts Drives: 2010 BMW E92 M3 Dakar Edition Join Date: Jul 2015 Location: Malaysia iTrader: (0)	You can't cut CF without damaging it
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10-14-2017, 07:48 AM	#3
becausephilchow Lieutenant 175 Rep 513 Posts Drives: 08 E90 M3 Join Date: Mar 2014 Location: Hong Kong iTrader: (2)	I mean, since it won't fit anyways, I"d give it a shot to give it a trim. I'd cut the ARKYM for sure, not the VARIS, lol. Worst case, doesn't fit anyways, and then you just order the VARIS Upper
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10-16-2017, 11:16 PM	#5
Narvin @narvinbeans 238 Rep 332 Posts Drives: 2009 Jet Black E92 M3 Join Date: Dec 2012 Location: SoCal iTrader: (3)	Laser __________________ @narvinbeans
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10-17-2017, 10:51 AM	#6
MaximusB Major 1394 Rep 1,290 Posts Drives: 13 Frozen White E92 Join Date: Apr 2016 Location: Vancouver iTrader: (0)	You can cut CF without cracking it. I’ve done it several times for my other car. Best is to use air tool and cut off wheel. Don’t cut exactly where you mark it, leave a little wiggle room and hand sand it down to the marked line. Dremel will work too, I’ve used it to cut my CF hood for hood pins but it is hard to cut long straight line for your purpose. If you’re worry I’d say go buy some cheap CF pieces off eBay to practice. And use lots of masking tape so you don’t accidentally scratch the adjacent surface.
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06-08-2018, 04:51 AM	#9
donut_boi Major 998 Rep 1,266 Posts Drives: 2015 F85 X5M DGM Join Date: Sep 2017 Location: Covina, CA. iTrader: (31)	Reviving this thread to see if anyone else was successful in pairing other brand upper diffuser with the Varis lower diffuser. __________________ 2015 BMW X5 ///M \| Donington Grey \| Aragon Brown MRF Engineering \| RG Sport \| BMW Performance \| Dinan \| KW \| Vorsteiner \| Zito \| iND \| BMW Parts Pros \| Coby 2010 BMW 328i AT xDrive E91 Touring ///M Sport \| Alpine White \| Saddle Brown
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06-08-2018, 10:46 AM	#10
BayE30 Lieutenant Colonel 1341 Rep 1,881 Posts Drives: 2011.75 E90 M3 ZCP Join Date: Jul 2014 Location: San Francisco iTrader: (5)	you can cut CF, just have to apply tape on the cut line, and use an air powered jigsaw. i have done it many times, no problem.
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