CLA 45 AMG (C117) 2013 to 2018

Willall intake

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Old 09-16-2014, 02:06 AM
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2014 CLA 45 AMG
Willall intake

Just installed the Willall Racing air inlet kit. It is a GREAT mod! Drastically improved the sound of the turbo spooling up, and even gives a slight blow off valve sound also! Throttle response and power are noticeable differences as well. Martin from Willall provided me with excellent customer service, and I'd recommend him and the inlet kit as a must have! Here are some pics of the difference between stock and the Willall kit





Old 09-16-2014, 06:33 AM
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cla 45 amg
how much did you pay
Old 09-17-2014, 01:34 AM
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i just thoguht about this, but can't you just widen out the stock inlets hole? starting a thread.
Old 09-20-2014, 04:36 AM
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Originally Posted by CLA45AMG2.0
i just thoguht about this, but can't you just widen out the stock inlets hole? starting a thread.
That piece is Cnc machined to an exact measurement Down to hundredths of a mm to be able to fit snug with the custom sized filter. See how the filter opening is bigger to match the size of the new "restrictor"? You can dremel it out but you won't get a perfect fit like that and would likely have air leaks not something I'd try on 60+K car
Old 09-25-2014, 10:55 PM
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Originally Posted by Ezec63
That piece is Cnc machined to an exact measurement Down to hundredths of a mm to be able to fit snug with the custom sized filter. See how the filter opening is bigger to match the size of the new "restrictor"? You can dremel it out but you won't get a perfect fit like that and would likely have air leaks not something I'd try on 60+K car
I think it is possible to dremel out the restrictor smoothly, but I don't think you can find a twist-on filter to match the enlarged intake.

Most aftermarket filters are clamp-on, not twist-on.
Old 09-25-2014, 11:16 PM
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Mercedes C200 CGI, CLS350, CLA45 AMG, AMG GTS(ordered)
Here are the specs on the K&N filter used:

Universal Air Cleaner Assembly
Round Tapered
OD-4.5 in./6 in.
Flange L-5/8 in.
Inside Flange 4 in.
Centered
Rubber End
Filter Length 7 in.

It may be possible to fit this to a modified and enlarged stock restrictor.
Old 09-26-2014, 12:54 AM
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Originally Posted by ddtung
Here are the specs on the K&N filter used:

Universal Air Cleaner Assembly
Round Tapered
OD-4.5 in./6 in.
Flange L-5/8 in.
Inside Flange 4 in.
Centered
Rubber End
Filter Length 7 in.

It may be possible to fit this to a modified and enlarged stock restrictor.
Were onto our own DIY company bro! hahaha
Old 09-26-2014, 03:40 AM
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Originally Posted by ddtung
Here are the specs on the K&N filter used:

Universal Air Cleaner Assembly
Round Tapered
OD-4.5 in./6 in.
Flange L-5/8 in.
Inside Flange 4 in.
Centered
Rubber End
Filter Length 7 in.

It may be possible to fit this to a modified and enlarged stock restrictor.
Are you sure? Can you find the same specs but a dry filter? I don't think it is necessary to get an oiled one.

Did you find out how much is the OEM restrictor?

Depend on the cost, I might order both and play with them to find out.
Old 09-26-2014, 07:37 AM
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Originally Posted by dtc100
Are you sure? Can you find the same specs but a dry filter? I don't think it is necessary to get an oiled one.

Did you find out how much is the OEM restrictor?

Depend on the cost, I might order both and play with them to find out.
Yes I am sure.

Check the price of the OEM restrictor with your MB parts dept.
Old 09-26-2014, 10:41 AM
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I suppose a machine shop could widen it for you?
Old 09-26-2014, 01:07 PM
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get to work .


http://www.verociousmotorsports.com/Shop-by-Category
Old 09-26-2014, 03:12 PM
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Originally Posted by ddtung
Yes I am sure.

Check the price of the OEM restrictor with your MB parts dept.
Anyone has the part #?
Old 09-26-2014, 04:14 PM
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Ok I called the dealer, the inlet restrictor is part of the air box assembly not sold separately. The cost is $250.

At this cost (add the filter cost and the level of difficulty) I don't think it is worth the DIY. Just get the Winall unit.

For those who already have the Winall intake, it would be nice if you can do before and after dynos including a/f ratios for comparison.

Or ask Winall to provide the a/f chart. I would not buy until I see the a/f chart.

Last edited by dtc100; 09-26-2014 at 04:20 PM.

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