BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

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      11-25-2011, 06:32 PM   #67
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Quote:
Originally Posted by bklounge View Post
I've been doing some reading on the ets intercooler and it sounds like a really solid unit:

http://www.extremeturbosystems.com/E...tercooler.html

Michael from ETS mentioned that it doesn't require any cutting/trimming of the bumper.
No, the ETS unit does not require any trimming or cutting for the 135i 335i or 1M.
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      11-27-2011, 01:04 PM   #68
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As for the downpipe, i'm considering between Akra and AR, which one do you guys prefer?
thanks
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      11-27-2011, 02:41 PM   #69
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Quote:
Originally Posted by z3lai View Post
As for the downpipe, i'm considering between Akra and AR, which one do you guys prefer?
thanks
I've read a lot of positive things about the AR dp - as already discussed, it's available in catted and catless guise.

There doesn't seem to be detailed info on the akra dp anywhere, aside from the fact that it's available as catless only.
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      11-27-2011, 04:43 PM   #70
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I think I am leaning towards a catted option, and I have emailed AR the spec of the cat. I am thinking of getting them to possibly do on with HJS 100 cel cat. That would make it much more expensive though. Otherwise, from the fitment photos from the akra exhaust, I couldn't see any reason why the akra dp will be less perfect.
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      11-27-2011, 05:43 PM   #71
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Quote:
Originally Posted by z3lai View Post
As for the downpipe, i'm considering between Akra and AR, which one do you guys prefer?
thanks
AR makes one of the best DP's out there right now. Zero fitment issues so far.

Akrapovic is still limited on its info.
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      11-28-2011, 12:17 AM   #72
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Quote:
Originally Posted by bklounge View Post
I've read a lot of positive things about the AR dp - as already discussed, it's available in catted and catless guise.

There doesn't seem to be detailed info on the akra dp anywhere, aside from the fact that it's available as catless only.
Quote:
Originally Posted by sparoz View Post
I think I am leaning towards a catted option, and I have emailed AR the spec of the cat. I am thinking of getting them to possibly do on with HJS 100 cel cat. That would make it much more expensive though. Otherwise, from the fitment photos from the akra exhaust, I couldn't see any reason why the akra dp will be less perfect.
We just installed Ahrapovic DPs and they are fantastic!

Very well made, 5.5lbs lighter than stock DPs (due to no cats), very easy to install, perfect fitment too











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      11-28-2011, 12:55 AM   #73
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Those DP's look pretty sweet! I think those are the first DP's that I have seen with expansion bellows too. Quality.
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      11-28-2011, 04:37 AM   #74
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is there any CEL issue with Akrapovic dps?
is it compatible to the stock muffler?
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      11-28-2011, 05:10 AM   #75
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The Akra gear looks mint! What diameter are the Akra dp's?
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      11-28-2011, 08:58 AM   #76
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Quote:
Originally Posted by Dackelone View Post
Those DP's look pretty sweet! I think those are the first DP's that I have seen with expansion bellows too. Quality.
I'm unfamiliar with the role of the expansion belows. What do they do?

Thanks.

Neil
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      11-28-2011, 09:06 AM   #77
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I'm unfamiliar with the role of the expansion belows. What do they do?

Thanks.

Neil

The "acordian belows" allow the exhaust system to grow, when it heats up. I would think DP's without them could have some leaks as the exhaust heats up or cools down. Most exhaust systems grow as they heat up. Typically about 25mm or more. Btw... I have only seen Porsche use these "acordian belows" before on their headers.
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      11-28-2011, 10:25 AM   #78
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Quote:
Originally Posted by Dackelone View Post
The "acordian belows" allow the exhaust system to grow, when it heats up. I would think DP's without them could have some leaks as the exhaust heats up or cools down. Most exhaust systems grow as they heat up. Typically about 25mm or more. Btw... I have only seen Porsche use these "acordian belows" before on their headers.
Makes sense. Thanks.

Neil
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      11-28-2011, 11:10 AM   #79
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How much for the Akrapovic downpipes??
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      11-28-2011, 12:08 PM   #80
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Quote:
Originally Posted by z3lai View Post
is there any CEL issue with Akrapovic dps?
is it compatible to the stock muffler?
Yes, as the primary cats are removed and the secondary O2 sensors will trigger the CEL.

As Alekshop stated, the fitment is perfect so it is compatible with all oem and aftermarket exhausts.

Quote:
Originally Posted by ADVANT123 View Post
How much for the Akrapovic downpipes??
$799
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      11-28-2011, 12:41 PM   #81
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Quote:
Originally Posted by HP Autowerks View Post
Yes, as the primary cats are removed and the secondary O2 sensors will trigger the CEL.

As Alekshop stated, the fitment is perfect so it is compatible with all oem and aftermarket exhausts.



$799
GROUP BUY!!!!
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      11-28-2011, 03:08 PM   #82
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Quote:
Originally Posted by HP Autowerks View Post
Yes, as the primary cats are removed and the secondary O2 sensors will trigger the CEL.

As Alekshop stated, the fitment is perfect so it is compatible with all oem and aftermarket exhausts.



$799
Drool.... I hope Cobb releases their accessport for the 1M soon so we can eliminate the CEL!
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      11-29-2011, 03:05 AM   #83
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Quote:
Originally Posted by ADVANT123 View Post
Drool.... I hope Cobb releases their accessport for the 1M soon so we can eliminate the CEL!
No need to wait for something to come out ! Get ESS DirectFlash tune and it will take care of CEL as well as will give you a noticeable bump in hp/tq

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      11-29-2011, 03:08 AM   #84
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Quote:
Originally Posted by EIN M View Post
GROUP BUY!!!!
There won't be a GB on Akrapovic products unfortunately ...

We have down pipes in stock ready to be shipped.

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      11-29-2011, 08:55 AM   #85
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Would be very interested to know if the Akrapovic DPs will fit on the 135. Anyone that could confirm or should fit them within the next week or so?
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      11-29-2011, 11:19 AM   #86
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Would be very interested to know if the Akrapovic DPs will fit on the 135. Anyone that could confirm or should fit them within the next week or so?
Yes, it is the same DP for all N54.
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      11-30-2011, 12:31 AM   #87
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Quote:
Originally Posted by Alekshop View Post
There won't be a GB on Akrapovic products unfortunately ...

We have down pipes in stock ready to be shipped.

Aleks.
Are you able to check with Akrapovic HQ whether these fit RHD vehicles?
Thanks
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      11-30-2011, 12:54 AM   #88
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Are you able to check with Akrapovic HQ whether these fit RHD vehicles?
Thanks
Yes, they do fit RHD cars.
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