Downpipe and fmic for 1M - Page 4 - BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)

HP Autowerks · 11-25-2011, 06:32 PM

Quote:

Originally Posted by bklounge

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.

z3lai · 11-27-2011, 01:04 PM

As for the downpipe, i'm considering between Akra and AR, which one do you guys prefer?
thanks

bklounge · 11-27-2011, 02:41 PM

Quote:

Originally Posted by z3lai

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.

sparoz · 11-27-2011, 04:43 PM

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.

HP Autowerks · 11-27-2011, 05:43 PM

Quote:

Originally Posted by z3lai

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.

Alekshop · 11-28-2011, 12:17 AM

Quote:

Originally Posted by bklounge

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

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

Aleks.

Dackelone · 11-28-2011, 12:55 AM

Those DP's look pretty sweet! I think those are the first DP's that I have seen with expansion bellows too. Quality.

z3lai · 11-28-2011, 04:37 AM

is there any CEL issue with Akrapovic dps?
is it compatible to the stock muffler?

BMW86 · 11-28-2011, 05:10 AM

The Akra gear looks mint! What diameter are the Akra dp's?

MDORPHN · 11-28-2011, 08:58 AM

Quote:

Originally Posted by Dackelone

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

Dackelone · 11-28-2011, 09:06 AM

Quote:

Originally Posted by MDORPHN

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.

MDORPHN · 11-28-2011, 10:25 AM

Quote:

Originally Posted by Dackelone

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

ADVANT123 · 11-28-2011, 11:10 AM

How much for the Akrapovic downpipes??

HP Autowerks · 11-28-2011, 12:08 PM

Quote:

Originally Posted by z3lai

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

How much for the Akrapovic downpipes??

$799

EIN M · 11-28-2011, 12:41 PM

Quote:

Originally Posted by HP Autowerks

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!!!!

ADVANT123 · 11-28-2011, 03:08 PM

Quote:

Originally Posted by HP Autowerks

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!

Alekshop · 11-29-2011, 03:05 AM

Quote:

Originally Posted by ADVANT123

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

Aleks.

Alekshop · 11-29-2011, 03:08 AM

Quote:

Originally Posted by EIN M

GROUP BUY!!!!

There won't be a GB on Akrapovic products unfortunately ...

We have down pipes in stock ready to be shipped.

Aleks.

Schaffer · 11-29-2011, 08:55 AM

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?

HP Autowerks · 11-29-2011, 11:19 AM

Quote:

Originally Posted by Schaffer

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.

M1one1M · 11-30-2011, 12:31 AM

Quote:

Originally Posted by Alekshop

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

HP Autowerks · 11-30-2011, 12:54 AM

Quote:

Originally Posted by M1one1M

Are you able to check with Akrapovic HQ whether these fit RHD vehicles?
Thanks

Yes, they do fit RHD cars.

11-27-2011, 04:43 PM	#70
sparoz Brigadier General Drives: VO 1///M; AW X3 30d Join Date: Jun 2008 Location: Sunshine Coast Posts: 4,524 iTrader: (0)	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. __________________ 1///M - Valencia Orange X3 30d - Alpine White Under Six Seconds http://www.under6s.com

11-28-2011, 05:10 AM	#75
BMW86 Major General Drives: BMW 135i / Kawa Ninja Join Date: Jul 2008 Location: Australia Posts: 8,613 iTrader: (0)	The Akra gear looks mint! What diameter are the Akra dp's? __________________ BMW 135i N54 TWIN TURBO Quarter Mile 12.173@113.70mph - Street Tyres Queensland Raceway Sprint 1:01:22 - Street Tyres Queensland Raceway Clubman 1:04:74 - Street Tyres Lakeside Raceway 1:03:97 - Street Tyres

11-28-2011, 11:10 AM	#79
ADVANT123 Second Lieutenant Drives: 1M Join Date: Jul 2009 Location: NJ Posts: 260 iTrader: (0)	How much for the Akrapovic downpipes?? __________________ 2011 Valencia Orange 1M - Weekend Warrior 2013 Acura RDX - Daily

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

11-27-2011, 01:04 PM	#68
z3lai New Member Drives: E90 M3 Join Date: Dec 2010 Location: hk Posts: 7 iTrader: (0)	As for the downpipe, i'm considering between Akra and AR, which one do you guys prefer? thanks

11-28-2011, 12:55 AM	#73
Dackelone Moderator Drives: 135i Silber mit/Rot 6MT N54 Join Date: Feb 2010 Location: Bayern, Germany Posts: 13,044 iTrader: (0)	Those DP's look pretty sweet! I think those are the first DP's that I have seen with expansion bellows too. Quality.

11-28-2011, 04:37 AM	#74
z3lai New Member Drives: E90 M3 Join Date: Dec 2010 Location: hk Posts: 7 iTrader: (0)	is there any CEL issue with Akrapovic dps? is it compatible to the stock muffler?

11-29-2011, 08:55 AM	#85
Schaffer New Member Drives: Various BMWs Join Date: Nov 2011 Location: Europe Posts: 11 iTrader: (0)	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?