E92 Akrapovic slip on install get together in Issaquah.

GOLFFRR · 12-30-2010, 07:17 PM

congrats on the akra awesome upgrade!

FrenchBoy · 12-30-2010, 10:44 PM

I had a good time. Unlimited Motoring is a rather impressive place with a bunch of cool cars being worked on. It is also immaculately clean...

Exhaust looks and sounds good Tomasz! I really enjoyed our lunch as well.

Cheers,

M3EAST · 12-31-2010, 02:37 AM

congrats on the exhaust! notice any improvement with throttle response?

JPatrick · 12-31-2010, 01:13 PM

I see that rather than using a heat shield, you wrapped the pipes. Was that your idea? Looks good.

tha_good_life · 01-01-2011, 12:29 PM

wow, two more Ms in the Issy area! See you guys around!

1MORELAP · 01-02-2011, 10:00 PM

Hi:

I wrapped the pipes because I procrastinated so long that I had to go with the local O'Reilly solution. They had DEI wrap in stock.

But I also saw the GT4 pipes wrapped and concluded that if BMW does it - it can not be so bad.

On a sadder note, I have not driven the car since the install.

Tomasz

w00tw00t · 01-02-2011, 11:15 PM

Quote:

Originally Posted by 1MORELAP

Hi:

On a sadder note, I have not driven the car since the install.

Tomasz

why not? ice? .. I've been driving my m3 around even though its still on PS2s (Dunlop wintersports ordered but not here yet) - and its been fine. I've been very light on the throttle and stayed off side streets .. no drama.

1MORELAP · 01-02-2011, 11:28 PM

No, just took the family to Leavenworth for new years. Left Friday, and just got home couple hours ago...

JPatrick · 01-03-2011, 07:20 PM

Quote:

Originally Posted by 1MORELAP

Hi:

I wrapped the pipes because I procrastinated so long that I had to go with the local O'Reilly solution. They had DEI wrap in stock.

But I also saw the GT4 pipes wrapped and concluded that if BMW does it - it can not be so bad.

Tomasz

I believe the theory is that you insulate the exhaust pipes to keep the exhaust gas from loosing heat.. The hotter the gas, the faster the gas exits the system. More rapid exhaust gas exit translates into more power. I suspect that is why the GT4 pipes are fully wrapped.

FrenchBoy · 01-03-2011, 07:26 PM

It seems to me that the sections of pipe under the wrap will get hotter than the rest of the exhaust. Whether that's an issue or not is unclear. But that was a concern to me.
That's why I went with the shield: It doesn't trap the heat, it only blocks the heat and limits the rubber components and differential from getting too hot.

JPatrick · 01-03-2011, 08:51 PM

I believe it is similar to insulating steam pipes. The goal is to trap the heat in the pipe to minimize heat loss. The insulation is cool compared to the contents of the pipe. This gets the heat where you want it. The radiator for the steam, the exhaust tips for the car. I suspect wrapping (some use powder/ceramic coating to do this) is equal to or more efficient than the shield. I have nothing to back this up though.

12-30-2010, 07:17 PM	#45
GOLFFRR 10816 Rep 27,599 Posts Drives: GOLFFRR cart Join Date: Mar 2009 Location: we sell BMWs to "ALL" US states iTrader: (4)	congrats on the akra awesome upgrade! __________________ BEFORE YOU BUY YOUR NEXT BMW, EMAIL OUR GUY KOTE FIRST! Kote M Sales:Kotem@bmwofcamarillo.com Cell:805-368-9101 vipfinance@bmwofcamarillo.com for warranties!
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12-30-2010, 10:44 PM	#46
FrenchBoy Lieutenant Colonel 234 Rep 1,508 Posts Drives: '16 F80 M3 Join Date: Mar 2006 Location: Seattle, WA iTrader: (0)	I had a good time. Unlimited Motoring is a rather impressive place with a bunch of cool cars being worked on. It is also immaculately clean... Exhaust looks and sounds good Tomasz! I really enjoyed our lunch as well. Cheers, __________________ Current: 2016 F80 M3 6-Speed \| SO \| AB XT1 \| ZCP \| M Performance Suspension \| GC Camber Plates Previous: 2009 E90 M3
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12-31-2010, 02:37 AM	#47
M3EAST Enlisted Member 2 Rep 30 Posts Drives: E90 M3 ZCP Join Date: Dec 2010 Location: Seattle, WA iTrader: (0)	congrats on the exhaust! notice any improvement with throttle response? __________________ M3 \| 2011 E90 ZCP \| Space Grey \| MDCT M3 \| 2008 E92 \| Space Grey \| MDCT \| SOLD
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12-31-2010, 01:13 PM	#48
JPatrick Private First Class 11 Rep 109 Posts Drives: 2011.5 E90 M3 Join Date: Nov 2010 Location: Seattle, WA iTrader: (0) Garage List 2011 BMW M3 [0.00] 1998 BMW M3 [0.00]	I see that rather than using a heat shield, you wrapped the pipes. Was that your idea? Looks good. __________________ 2011.5 E90 M3 - Space Gray/Extended Fox Red Leather/Sycamore Anthracite Trim, DCT, ZCP, everything except Moon Roof
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01-01-2011, 12:29 PM	#49
tha_good_life Brigadier General 376 Rep 4,089 Posts Drives: 21 X6MC Join Date: Jul 2008 Location: Seattle iTrader: (22) Garage List 2021 BMW X6MC [10.00] 2010 BMW M3 [8.68]	wow, two more Ms in the Issy area! See you guys around!
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01-02-2011, 10:00 PM	#50
1MORELAP Captain 99 Rep 700 Posts Drives: '22 911 GTS '19 X3, X5, X7 Join Date: May 2010 Location: Seattle, WA iTrader: (0)	Hi: I wrapped the pipes because I procrastinated so long that I had to go with the local O'Reilly solution. They had DEI wrap in stock. But I also saw the GT4 pipes wrapped and concluded that if BMW does it - it can not be so bad. On a sadder note, I have not driven the car since the install. Tomasz __________________ I apologize for spelling mistakes up front, they are a result of multitasking.
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01-02-2011, 11:28 PM	#52
1MORELAP Captain 99 Rep 700 Posts Drives: '22 911 GTS '19 X3, X5, X7 Join Date: May 2010 Location: Seattle, WA iTrader: (0)	No, just took the family to Leavenworth for new years. Left Friday, and just got home couple hours ago... __________________ I apologize for spelling mistakes up front, they are a result of multitasking.
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01-03-2011, 07:26 PM	#54
FrenchBoy Lieutenant Colonel 234 Rep 1,508 Posts Drives: '16 F80 M3 Join Date: Mar 2006 Location: Seattle, WA iTrader: (0)	It seems to me that the sections of pipe under the wrap will get hotter than the rest of the exhaust. Whether that's an issue or not is unclear. But that was a concern to me. That's why I went with the shield: It doesn't trap the heat, it only blocks the heat and limits the rubber components and differential from getting too hot. __________________ Current: 2016 F80 M3 6-Speed \| SO \| AB XT1 \| ZCP \| M Performance Suspension \| GC Camber Plates Previous: 2009 E90 M3
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01-03-2011, 08:51 PM	#55
JPatrick Private First Class 11 Rep 109 Posts Drives: 2011.5 E90 M3 Join Date: Nov 2010 Location: Seattle, WA iTrader: (0) Garage List 2011 BMW M3 [0.00] 1998 BMW M3 [0.00]	I believe it is similar to insulating steam pipes. The goal is to trap the heat in the pipe to minimize heat loss. The insulation is cool compared to the contents of the pipe. This gets the heat where you want it. The radiator for the steam, the exhaust tips for the car. I suspect wrapping (some use powder/ceramic coating to do this) is equal to or more efficient than the shield. I have nothing to back this up though. __________________ 2011.5 E90 M3 - Space Gray/Extended Fox Red Leather/Sycamore Anthracite Trim, DCT, ZCP, everything except Moon Roof
	Appreciate 0 Quote