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Dilemma ...

This is a discussion on Dilemma ... within the Focus RS Performance forums, part of the Focus RS Garage category; Hey Rally Sport drivers, I have received very valuable feedback from people here on the board and RS owners on YouTube. Truth be told I ...

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  1. #1
    RS Specialist bad|teddy's Avatar
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    Dilemma ...

    Hey Rally Sport drivers,

    I have received very valuable feedback from people here on the board and RS owners on YouTube. Truth be told I am still not convinced on one aspect. I think I am amongst the outliers on this forum when it comes to modifications. I changed my IC, DP, Cat-Back, and remapped the car. My car is at 600 Nm which is 442.5 ft-lb and blows me away how well it puts the power down.

    You may have noticed that in my list of changes I did not mention the Cold Air Intake. I do not have one, I am still using the stock one. I have two on my list. The ETS one and the Eventuri one. The former looks decent and the pipe diameters are larger. It goes all the way to the Turbo and like Ron said, this can help if you go big turbo. At this point in time or near future I do not plan a big turbo on the car.

    The Eventuri one is very nice looking and seems to have a design to include an external air source from under the car. I am worried about the price of course, it is nuts, and the heat soak that the open filter will take from the engine bay.

    I am not particularly convinced that for the stock car any of the above solutions will truly bring a benefit in terms of performance. I look at my car from a performance perspective first and then from a swag one.

    Having spoken to my tuner he claims that the Eventuri one has been proven on the Dyno and they measured an average of 7 hp increase on two RS vehicles they tested. According to their measurements the Mountune one and Mishimoto had a negligible increase. They could not test ETS as it is not a brand we have in Europe.

    I am of the thought that the stock set up is good enough for my needs. I would probably change the filter but can anyone state that a cold air intake is worth the money for my current situation? The ETS one with shipping is 550 EUR. The Eventuri one with installation is 870 EUR. These are prices which need to justify some performance gain and I am not sure any exist.


    On a closing note, if I do see serious recommendations for a cold air intake which exclude sounds from members, I will purchase one. Truth be told, I am exploring two possible avenues for my car now and they are suspension related. If the Cold air intake is such a must I will delay my suspension installation.

    I have the following changes in mind :

    Ohlins :

    1. DFV Sport
    2. EDC Cancellation Kit
    3. H&R ARB Front
    4. H&R ARB Rear
    5. Bushings, RMM, etc


    KW:

    1. CS 2 way
    2. KW EDC Cancellation module
    3. H&R ARB Front
    4. H&R ARB Rear
    5. Bushings, RMM, etc
    Focus RS MK3 2017 NB
    Wagner Tuning - Competition IC / Stock CAI & BMC Air Filter
    HJS 200 Cell Sportkat with Remus Cat-back & SS Black Chrome Tailpipes
    Fischer-Hydraulik SS Brake Lines & Endless RF 650
    Mountune EBC F&R Rotors with Endless ME20 Pads

  2. #2
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    With the stock turbo, I don't see you netting much with a true CAI. Personally, I would find the suspension a lot more fun than just an intake which may net 10bhp.

    For the price, I don't think you will see an appreciable difference between the ETS and Eventuri, again, stock turbo. I have the ETS on my car and while it's the only true 3"/76mm intake from turbo inlet to filter, I don't know if I would spend EUR 550 on one. It's all steel, fitment with the valve cover breather isn't as nice as OEM (the angle is off), and there are no attachment points for the vacuum line which now hangs around freely in the engine bay.
    bad|teddy likes this.

  3. #3
    RS Specialist phillofoc's Avatar
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    I doubt you'll feel a 7hp difference. I'm running the full Mountune intake to the turbo, mostly because half of it came with the M380 kit and I used the Mountune points to buy most of the lower intake. I can't remember where I saw it, but I thought I read somewhere that the intake is good for 500hp. It's good enough that the FoST guys are putting it on their car as a cheap/effective upgrade.

    If you only care about performance, save the cash and replace the accordion pieces near the intake and connecting the 2 halves of the intake piping to the turbo. I'm assuming that you changed out the charge piping and air filter, as both of those likely have restrictions that will have an impact on your setup (I'm stock IC so I haven't changed out anything after the turbo). I'm curious if changing out the connectors will have an impact, but I imagine that they'll reduce turbulence in the intake so you can push more air to the turbo.

    You can always go with the DSC Sport Controller (my next upgrade) if you want to spend more money on the car, and perhaps you can source the Tractive dampeners from the UK vs the US as the GBP gets weaker by the second.
    If you buy one, drive it hard. Because thrills like these don’t happen often.

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    RS Specialist BigFatFlip's Avatar
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    I'd skip the intake. As others above have mentioned, I doubt you'll feel the 7hp difference compared to how well the car would be handling/have better ride comfort. As you did say "I look at my car from a performance perspective first and then from a swag one. " lol

    On the suspension options you have mentioned, I would lean more towards Ohlins

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    Swap the filter, but you’ll see very little gains from a full intake on our cars. Just keep N eye on Craigslist or whatever and snag one used for cheaper

  7. #6
    Supporting Member nicklulu's Avatar
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    If I did not get my intake for cheap I will keep my stockers.

    The OE is bigger than Mishimoto or Roush in diameter.

    Even @romemedrano I think is running OE intake pipes.
    2018 NB Focus RS LE
    2010 PB LanEvo X MR
    2006 GG LanEvo IX MR
    1992 MR Civic EG6
    2009 Sarao GT-K (k for Karabao)

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    The intake on this car is not really a bottleneck. Most of them are more of an aesthetic thing than a $/hp investment. You can just go with the big mouth intake if you want to get some more ambient air in there. Even so that kind of falls into the same thing as the rest of the intake stuff. The stock one is really pretty good.

  9. #8
    RS Member Timmy_Jones's Avatar
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    Spend the $60 on a nice filter and be done with it, until you go to a bigger turbo. Car makes a ton of power, look at some other really 'feel good' mods.

    1. Window Tint
    2. New Taillights
    3. Shorty Antenna
    4. Decals on wing spoiler
    5. New RS decal overlays in a different color maybe?
    6. Short shifter!

  10. #9
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    There is a reason why Cobb doesn't really sell an intake for this car. I mean, they do, they sell the expensive carbon fiber one originally made for the ST - But that's only for the visual appearance aspects. They do not claim any power gains with this part. Unless you're going larger turbo there is no need for an aftermarket intake on this car.

  11. #10
    RS Senior Member stvjeep's Avatar
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    It's not worth it to replace the intake. The stock one is more then sufficient, even up to 500hp as some here mentioned. For sound perhaps but just swapping the stock paper filter for a high flow, open ended, K&N filter will increase intake volume.

    The big thing being warranty. I personally want to maintain my stock warranty and in my case also an extended warranty fully intact. A full intake would no doubt would result in a denial of warranty in the case of a turbo or engine failure. You could always swap the stock one back in a warranty claim case but it's just not worth all the trouble in my opinion.

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