02-26-2013, 06:41 PM | #4 |
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I've got the Helix, the design features are what sold me, stepped core with greater face area, bull nosed bars on the face near drop in fit, and the performance results of very low pressure drop and IAT temp drop are at the top of the list
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02-26-2013, 08:15 PM | #9 | |
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02-26-2013, 09:24 PM | #11 |
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02-27-2013, 01:29 AM | #13 |
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I chose the Forge because of the craftsmanship, factory connectors, and overall material quality in Forge parts. I also did back to back dyno runs after installing one on my 135i and was impressed with the gains...12whp if I recall correctly on a car with only a BMW Perf flash. IATs were also materially lower as well.
The FMIC has also proven its worth during a few track days as well. I'm happy with the purchase, but I'm sure there are other quality units out there as well. The step design cores just never made sense to me - I don't understand how the awkward turbulence it creates wouldn't offset any benefit gained from additional cooling area. YMMV |
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02-27-2013, 01:57 AM | #14 |
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Wagner has very close to helix design it is made in Germany you don't have to cut anything it is black so it has stealth look.
But I would go with VRSF it is cheapest and it is 7 inch core thick. And others will tell even more so I think You have to search and make your own decision find your arguments. |
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02-27-2013, 03:21 AM | #15 |
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Wagner:
+ Made in Gemany + Bolt on + Value for money
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02-27-2013, 07:36 AM | #17 |
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I am torn trying to decide between ETS 5" and Wagner, both require no mods...
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02-27-2013, 07:37 AM | #18 | |
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http://hpashop.com/BMW-135I-335I-Z4-...4-N55-FMIC.htm |
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02-27-2013, 07:43 AM | #19 | |
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I am just worried about voiding the warranty with those upgrades... |
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02-27-2013, 07:48 AM | #20 | |
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I don't think you will have many issues, becuase those mods are equally compatible with the oem tune as the cobb can be removed I will have my powdercoated Wagner for sale soon, so feel free to pm me if you are interested. Much cheaper than the new prices. Seems like a good list but I'd pass on these scoops.
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02-27-2013, 08:11 AM | #21 | |
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I would like to know if ETS that you have in your car and which is 100 % reversable and real bolt-on according to all reports, also covers the following well vs. the stock unit: - stock is extremely light and helps the car's almost perfect weight balance, is there any noticeable weight difference between stock and ETS (which must be among the lighter options of aftermarket ICs)? - lag/throttle response is of fundamental concern for me, stock IC might be POS for most people but as long as it does the job it also seems to be great for minimal lag due to its small size. So what about ETS? Is there any negative (or positive) difference in this field that you noticed after you installed the ETS, especially without M button pressed?
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02-27-2013, 08:12 AM | #22 |
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For whatever reason a lot of dealers don’t like chargepipes, but FMICs seem to be in a grey area…As with all mods, it’s a case by case basis.
Best overall- Helix Best 5” core- ETS or ER Best value- VRSF 7” You cannot go wrong with any of the above choices. Edit: Ozinaldo- regarding your concerns above, A 7” core will weigh a good deal more than the OE unit, personally that’s something I’ll trade off every time, but it’s a valid concern. I’ve held the ETS 5”, and while it is heavier, I’d doubt it would make a noticeable difference in the handling dynamics of your car. With regards to the lag, again a 5” will be virtually identical to the OE unit, and a well-made 7” core will only introduce a small amount of lag on throttle tip in. You guys get pretty nice catted downpipes OE, so your starting off with less lag than I’d perceive in my car. IMO a good FMIC is one of the best upgrades on the market for the N54, it’s not a “wow” product, but it relieves so much thermal stress from the system. N54 is an oven in terms of heat.
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F30 N55 XDrive EBII Last edited by 135Pats; 02-27-2013 at 08:23 AM.. |
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