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      12-15-2013, 07:05 PM   #1
Pazzo009
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Has anyone bought the AFE intake for their M5 yet?

Just looking for feedback on his.

Your thoughts?
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      12-15-2013, 07:23 PM   #2
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Quote:
Originally Posted by aculeg87
Just looking for feedback on his.

Your thoughts?
Cold air intakes are a waste brother.
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      12-15-2013, 07:29 PM   #3
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I remember AFE for the E60 M5 did not offer any gains.

CAI's for NA engines are a worthy upgrade. CAI's for a turbo engine are IMO not worth it.
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      12-15-2013, 08:57 PM   #4
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That is very true on the above statement.
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      12-15-2013, 09:14 PM   #5
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Quote:
Originally Posted by ColdList View Post
Cold air intakes are a waste brother.
+1 yep.. People buy it for the sound.
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      12-15-2013, 09:44 PM   #6
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Quote:
Originally Posted by positiveions
Quote:
Originally Posted by ColdList View Post
Cold air intakes are a waste brother.
+1 yep.. People buy it for the sound.
Apparently the sound is actually annoying, so most end up removing and reinstalling stock air boxes.
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      12-15-2013, 10:10 PM   #7
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I figured what all of you are saying. They are claiming 28 hp, but I don't buy into that. I was more curious about sound or turbo sound.
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      12-16-2013, 02:38 AM   #8
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[/B]
Quote:
Originally Posted by ColdList View Post
Cold air intakes are a waste brother.
+1
Save your money.
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      12-16-2013, 06:33 AM   #9
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gruppe M lol
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      12-16-2013, 06:34 AM   #10
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Quote:
Originally Posted by Jay-K View Post
gruppe M lol
I'd have to sell my porsche to buy one lol
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      12-16-2013, 06:58 AM   #11
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Quote:
Originally Posted by aculeg87
Quote:
Originally Posted by Jay-K View Post
gruppe M lol
I'd have to sell my porsche to buy one lol
THAT is what you should do-lol!
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      12-16-2013, 07:34 AM   #12
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Please let me know why it is a waste? No extra power? Does it really sound that bad? any videos?
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      12-16-2013, 08:10 AM   #13
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Quote:
Originally Posted by shahano View Post
Please let me know why it is a waste? No extra power? Does it really sound that bad? any videos?
Because HP gains claimed are bogus and are normally gained by simple removal of your charcoal filters. The turbo engine especially receives n benefit.

Watch this:

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      12-16-2013, 08:25 AM   #14
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Talking

Quote:
Originally Posted by ColdList View Post
Because HP gains claimed are bogus and are normally gained by simple removal of your charcoal filters. The turbo engine especially receives n benefit.

Watch this:

there is your answer total wast of money end off.
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      12-16-2013, 08:39 AM   #15
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Quote:
Originally Posted by ColdList View Post
Because HP gains claimed are bogus and are normally gained by simple removal of your charcoal filters. The turbo engine especially receives n benefit.

Watch this:

One dyno test of a turbo car is not the end all be all word on whether a cold air intake works or not. I find it interesting that without a filter at all it showed less power than with the filter outside the car. To me that shows that the air flow from a fan on a stationary dyno was not enough to simulate the air flow out on the road.

The benefit derived from an aftermarket intake is highly dependent on how restrictive a stock intake is. At stock hp and boost levels, the stock intake may be perfectly suited to it. But as you increase power and boost, the need for more air is increased and whether the stock intake is suited for it is something that needs to be tested (preferably out on the road/track). But to blanketly state that turbo cars get no benefit from aftermarket intake is just conjecture.
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      12-16-2013, 08:45 AM   #16
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Quote:
Originally Posted by Tom C View Post
One dyno test of a turbo car is not the end all be all word on whether a cold air intake works or not. I find it interesting that without a filter at all it showed less power than with the filter outside the car. To me that shows that the air flow from a fan on a stationary dyno was not enough to simulate the air flow out on the road.

The benefit derived from an aftermarket intake is highly dependent on how restrictive a stock intake is. At stock hp and boost levels, the stock intake may be perfectly suited to it. But as you increase power and boost, the need for more air is increased and whether the stock intake is suited for it is something that needs to be tested (preferably out on the road/track). But to blanketly state that turbo cars get no benefit from aftermarket intake is just conjecture.
Well Tom. considering that the air compressed by turbo engines is actually hotter and not colder, the blanket statement is accurate and certainly not conjecture. Turbos need intercoolers due to the denser heated air.

Conversely, you CAN get gains by adding a CAE to a NA engine, however, my point was that it is minimal in respect to the exorbitant price paid. Therefore mathematically speaking; benefit/price=WASTE. Again, you can just save a whole lot of money by simply removing your charcoal filters. You pick up approx. 75% of the benefit (if any) at ZERO cost.

Also, I do agree with you on the lack of ability f the Dyno fans to reproduce driving conditions. I have said this a ZILLION times on here when people are posting Dyno results from their cars. The F10 requires true 1:1 air flow ratios on the Dyno and NOBODY does it. Then they produce suspect results and proclaim them to be factual.

P.S. I simply found this video to be funny not scientific. I t is hilarious the lengths (quite literally) that these guys go to to prove this theory wrong.
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Last edited by ColdList; 12-16-2013 at 08:54 AM..
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      12-16-2013, 08:50 AM   #17
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Quote:
Originally Posted by ColdList View Post
Well Tom. considering that the air compressed by turbo engines is actually hotter and not colder, the blanket statement is accurate and certainly not conjecture. Turbos need intercoolers due to the denser heated air.

Conversely, you CAN get gains by adding a CAE to a NA engine, however, my point was that it is minimal in respect to the exorbitant price paid. Therefore mathematically speaking; benefit/price=WASTE. Again, you can just save a whole lot of money by simply removing your carbon filters. You pick up approx. 75% of the benefit (if any) at ZERO cost.
Luckily here in the UK, we do not use these carbon filters TMK.
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      12-16-2013, 08:54 AM   #18
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Quote:
Originally Posted by johnbmw6 View Post
Luckily here in the UK, we do not use these carbon filters TMK.
Whoops! I meant charcoal filters.
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      12-16-2013, 09:14 AM   #19
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Quote:
Originally Posted by ColdList View Post
Whoops! I meant charcoal filters.
Those are deleted here .
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      12-16-2013, 09:14 AM   #20
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Quote:
Originally Posted by ColdList View Post
Well Tom. considering that the air compressed by turbo engines is actually hotter and not colder, the blanket statement is accurate and certainly not conjecture. Turbos need intercoolers due to the denser heated air.

Conversely, you CAN get gains by adding a CAE to a NA engine, however, my point was that it is minimal in respect to the exorbitant price paid. Therefore mathematically speaking; benefit/price=WASTE. Again, you can just save a whole lot of money by simply removing your charcoal filters. You pick up approx. 75% of the benefit (if any) at ZERO cost.

Also, I do agree with you on the lack of ability f the Dyno fans to reproduce driving conditions. I have said this a ZILLION times on here when people are posting Dyno results from their cars. The F10 requires true 1:1 air flow ratios on the Dyno and NOBODY does it. Then they produce suspect results and proclaim them to be factual.

P.S. I simply found this video to be funny not scientific. I t is hilarious the lengths (quite literally) that these guys go to to prove this theory wrong.
I agree that intercooler efficiency trumps any "cold air" benefit. But what I am talking about is overall flow. I also agree, until you make significant modifications on an F10 M5, the stock air box without CF is sufficient. I removed the CF and put drop-in K&N filters which did provide noticeably better throttle response. I then went out and got an aftermarket intake with conical filters and carbon fiber air boxes (copy of Gruppe M's). In datalogging, it was slightly faster than my best runs with K&N drop-in filters (and the best intake runs were done in slightly worse conditions). So there was a performance benefit...but very slight and probably not worth it if that is the only mod in the budget. I plan on doing other mods so for me any little bit helps and the carbon fiber air boxes are eye candy in the engine bay and I do like the much more pronounced sound of the air rushing into the air boxes and blow off back into the intake. Plus it came with carbond fiber scoops that are visible inside the kidney grilles... which look nice as well.

To be honest, I don't particularly like the design of the AFE intakes. They have the conical filter completely enclosed and the only inlet for air is through a hole that looks to be smaller than the actual intake tubing. To me that appears to be way too restrictive...especially if looking to increase power and flow down the road. The price isn't too much cheaper than what I paid for my carbon fiber intake.
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Last edited by Tom C; 12-16-2013 at 09:22 AM..
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      12-16-2013, 10:23 AM   #21
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I believe that Charcoal filters are deleted here in Leb as the car is a Euro spec. Can you all confirm that Euro spec cars have not CFilters?
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      12-16-2013, 12:22 PM   #22
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Well large conical intakes on a turbo car running high flow DP's is absolutely not a waste, when the system is well designed like group M . I picked up almost 30whp and much better spool up on my tuned GTR . If you have modded your S63 tu and want most out of it this is part of the equation . I personally love the Sound combined with my SS DP's . It's much less of a waste than non functional aero that every one crows about , or 10k multipiece wheels that are heavier than stock, or 9k exhausts that add 5 hp . Even if it added no power , which it does , it would be worth it to me for the noticeable increase in intake sound . My two cents .
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