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I drive a modified 1.5L and have looked into intakes and exhausts. The OEM air box should be the same up to the downpipe. JCW models get a larger intercooler, but the airbox to the MAF sensor should be the same. In the aftermarket scene, most Cold Air Intakes or cone filter set ups should work. Stay away from brands like Eventuri, however, or you'll end up having to install a hood scoop :)

As far as exhausts, most will not work because of the dual exit on most S models. I suppose if you changed the rear bumper, you could maybe retrofit, but not sure. I have a Quicksilver Exhaust System from the UK on mine. Sounds fantastic IMO and really brings out the 3-cyl. character. I might be one of the only F56 1.5L with that system in the states, though. They're a bit difficult to get around here due to having to import.
wondering if you gain any hp/torque after the quicksilver. or too low to notice?
 

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wondering if you gain any hp/torque after the quicksilver. or too low to notice?
I haven’t gotten the car dyno’ed so I can only speak from my own driving experience with it here (butt dyno).
It seems that, after installing the exhaust, the power curve smoothed out a lot. It seems the car continues giving power all the way up to redline. Before, it seemed like power dropped off a lot on the approach to 5k+ rpm. Quicksilver claims on their site “improved throttle response”. I haven’t noticed a great increase in throttle response, though the power I get seems more full and consistent throughout the rev range. There could be slight throttle improvements, but nothing life-changing.
I do know the exhaust is more free flowing than the old system. Looking at the construction, it has less bends, a smaller muffler, and it might even remove the secondary catalytic converter and/or resonator on the f56. I hear more turbo flutter now for a fact, most likely due to the waste gate system having a freer-flowing exhaust to work with.
Without a tune, gains are small, but noticeable IMO. The biggest benefit with the exhaust for me, was the sound. It is immaculate. It is deep and bubbly. It also pops and burbles on gear shift when in sport mode + sport shift. It bubbles on engine decompression and as you come to a stop. If there are no power benefits to the Quicksilver Cat-back system, it makes you feel faster :).
Again, this is all just driving experience (butt dyno) and my own opinion. I do not have dyno numbers and haven’t tested how much HP I make. With a tune, you’d probably see a lot more gains than just a straight install on an unmodified vehicle. Sorry this was long, hope it helps!
 

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There's one problem that I see with the 3cyl hatch manual. 2nd gear is too high and set strictly for fuel economy. If it had the gearing of the S, it would be much quicker.
 

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Sure thing! Let me know if you decide to order it!
hello - link please? i am interested in this exhaust now... currently i have a BMC Sports filter on mine and that one gave some interesting gains, they say about 4-5cv (didn't do dyno tho), and i always do 98 oct on mine, feels really nice.

not sure what you mean with 2nd gear, if i squeeze that one i can do about 110 km/h which isn't that bad i think. 3rd goes to about 180 km/h -

Next i am thinking at some mods but we will see

thanks,
Gabrio
 

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Yeah, sure thing!
Here is the link for the exhaust: https://quicksilverexhausts.store/products/one-and-cooper-f56-3-door-sport-system-2014-on

Mine is automatic, so I am not sure if they are geared similarly. At times, the gears do feel a bit long, though. I have a Bluespark tuning module on mine and, to my surprise, that seemed to shorten them up a bit. Nice power increase too. :)
thank you, which map did you install with that bluespark? the +30 HP?

I am tempted to do this stage 2 tuning + intercooler from MiniSpeed, https://minispeed.eu/product/tuningstage-ii-cooper-naar-180-pk-3e-gen/ 180 HP plus intercooler - Beek Auto Racing which are like leading Mini specialists here in NLbut there's only the reliability that concerns me, right now we use the car for trips and long travels (recently went to Portugal, over 4000 kms) and runs like clockwork... with these aftermarket mods i cannot tell if they are reliable long term. Thanks to the fact that we cannot travel in plane as much as we used to, the Mini is now our airplane :)
 

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Glad the link helped! As far as the module is concerned, I am currently running Map D as I think that is the most enjoyable. As far as long term reliability, an exhaust will never cause problems. Unless it was installed incorrectly, all an exhaust does is push fumes out of the engine. I spoke to Bluespark about the reliability of their modules and they said the gains and boost pressure were well within the safety limiters installed by BMW at the factory. They assured me reliability would not be an issue.
 

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thank you, which map did you install with that bluespark? the +30 HP?

I am tempted to do this stage 2 tuning + intercooler from MiniSpeed, https://minispeed.eu/product/tuningstage-ii-cooper-naar-180-pk-3e-gen/ 180 HP plus intercooler - Beek Auto Racing which are like leading Mini specialists here in NLbut there's only the reliability that concerns me, right now we use the car for trips and long travels (recently went to Portugal, over 4000 kms) and runs like clockwork... with these aftermarket mods i cannot tell if they are reliable long term. Thanks to the fact that we cannot travel in plane as much as we used to, the Mini is now our airplane :)
I haven’t heard of MiniSpeed. I’m not sure if they’re reputable, but you would probably know better than me. In the US, the best comparable option to that kit would be a Forge Intercooler and a Bluespark module
 

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Minispeed are the Dutch equivalent, to lohen or waymotorworks for regional reference, they will retail many top brands, and the beek guys are the dutchmen on the spanner’s

apologies to all who know better for the very rough analogy 😉
 

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Minispeed are the Dutch equivalent, to lohen or waymotorworks for regional reference, they will retail many top brands, and the beek guys are the dutchmen on the spanner’s

apologies to all who know better for the very rough analogy 😉
Got it! Thanks for the insight!
 
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