Cyba quad tips, did anyone keep exhaust valve? - BMW 3-Series (E90 E92) Forum

Castel · 03-09-2012, 06:16 PM

It's been a while since I posted here. I purchased the Cyba quad tips and CF diffuser and installed them more than a year ago. I couldn't be happier with the looks.

During the install the shop seemed to have a hard time cutting and welding the new tips without cutting off the exhaust valve that comes stock behind the tip on the driver's side so we cut it off. I liked the sound (a little louder, more gurgling, a little droning) but after all these months I would like to quiet it down back to stock levels.

Initially I thought the sound was louder because of the increased tip size cross area but after reading some threads I realize it is most likely the missing exhaust flap valve. The problem is the valve is gone (trashed it at the shop back then) and even if I was able to get it back I'm not sure it would fit.

So... does anyone here have the Cyba quads installed and was able to keep the stock exhaust valve? Is it possible to get the valve portion anywhere to try to weld it back on? Anyone here care to sell it?

Thanks!

michael1284 · 03-09-2012, 06:35 PM

i have cyba tips, not quad but they were able to keep the valve on.

werke-t · 03-10-2012, 09:14 AM

Im glad you posted this, im looking at the same exact setup, but would prefer to keep the exhaust valve there if possible, looks like Im going to have to plan on dual exit instead of quad.

Quote:

Originally Posted by Castel

It's been a while since I posted here. I purchased the Cyba quad tips and CF diffuser and installed them more than a year ago. I couldn't be happier with the looks.

During the install the shop seemed to have a hard time cutting and welding the new tips without cutting off the exhaust valve that comes stock behind the tip on the driver's side so we cut it off. I liked the sound (a little louder, more gurgling, a little droning) but after all these months I would like to quiet it down back to stock levels.

Initially I thought the sound was louder because of the increased tip size cross area but after reading some threads I realize it is most likely the missing exhaust flap valve. The problem is the valve is gone (trashed it at the shop back then) and even if I was able to get it back I'm not sure it would fit.

So... does anyone here have the Cyba quads installed and was able to keep the stock exhaust valve? Is it possible to get the valve portion anywhere to try to weld it back on? Anyone here care to sell it?

Thanks!

theriz · 05-04-2012, 09:14 PM

bump.

would love to know as well.

lxlarry · 08-18-2012, 02:58 AM

bump i'm wondering the same question

pnutty · 08-23-2012, 09:30 AM

The shop I installed my tips at kept the valve. They had to cut some of the piping of the cyba tips though so they wouldn't stick out so much to compensate.

Castel · 02-28-2013, 06:41 PM

Anyone else wanting to resolve this?

Is there anyway to get an exhaust bypass valve? I don't have the stock one that was removed anymore...

e92ben · 02-28-2013, 08:34 PM

Quote:

Originally Posted by Castel

Anyone else wanting to resolve this?

Is there anyway to get an exhaust bypass valve? I don't have the stock one that was removed anymore...

Do you want one? I have one for sale PM me

Bimmer Barney · 03-01-2013, 01:08 AM

I kept mine intact. Cyba Quads

Castel · 04-12-2013, 11:30 AM

Finally I was able to fix my droning! I got a bypass valve, basically had to talk a seller on ebay on cutting the exhaust tip and selling and shipping only this part:

I then went to the muffler shop and they were able to cut off the tip, remove some tubing and accommodate the bypass valve. The change in sound is subtle but it doesn't drone anymore on the highway and it isn't so loud. Very happy with the mod! Or "unmod" I guess

.

Randomaccess335 · 04-12-2013, 11:34 AM

I wonder if the valve would cut down the drone on a car with no muffler

junitos · 04-12-2013, 12:06 PM

good thread I'm in the process of ordering some quad tip's. Ill make sure I keep the valve or it's a no go.

03-09-2012, 06:16 PM	#1
Castel Captain Drives: BMW 335i Coupe Join Date: Jul 2008 Location: Portland, OR Posts: 739 iTrader: (6)	Cyba quad tips, did anyone keep exhaust valve? It's been a while since I posted here. I purchased the Cyba quad tips and CF diffuser and installed them more than a year ago. I couldn't be happier with the looks. During the install the shop seemed to have a hard time cutting and welding the new tips without cutting off the exhaust valve that comes stock behind the tip on the driver's side so we cut it off. I liked the sound (a little louder, more gurgling, a little droning) but after all these months I would like to quiet it down back to stock levels. Initially I thought the sound was louder because of the increased tip size cross area but after reading some threads I realize it is most likely the missing exhaust flap valve. The problem is the valve is gone (trashed it at the shop back then) and even if I was able to get it back I'm not sure it would fit. So... does anyone here have the Cyba quads installed and was able to keep the stock exhaust valve? Is it possible to get the valve portion anywhere to try to weld it back on? Anyone here care to sell it? Thanks! __________________ 335i Coupe / SG on BK / 6MT / ZSP / ZPP / ZCP / NAV / CA Alufelgen SF71 19"s \| MTech front & rear + CF diffuser + Quads \| M3 Sideskirts \| OEM SSK \| M Interior \| LUX H8 \| M3 Spoiler \| ModmyNav
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03-09-2012, 06:35 PM	#2
michael1284 Colonel Drives: 2009 AW E90 335i Join Date: Apr 2010 Location: DFW Posts: 2,445 iTrader: (40)	i have cyba tips, not quad but they were able to keep the valve on. __________________ RIP e92. New project is ALIVE! Updated Pics!

08-23-2012, 09:30 AM	#6
pnutty Lieutenant Drives: 335 Join Date: Dec 2010 Location: Cambridge, MA Posts: 482 iTrader: (11)	The shop I installed my tips at kept the valve. They had to cut some of the piping of the cyba tips though so they wouldn't stick out so much to compensate. __________________

02-28-2013, 06:41 PM	#7
Castel Captain Drives: BMW 335i Coupe Join Date: Jul 2008 Location: Portland, OR Posts: 739 iTrader: (6)	Anyone else wanting to resolve this? Is there anyway to get an exhaust bypass valve? I don't have the stock one that was removed anymore... __________________ 335i Coupe / SG on BK / 6MT / ZSP / ZPP / ZCP / NAV / CA Alufelgen SF71 19"s \| MTech front & rear + CF diffuser + Quads \| M3 Sideskirts \| OEM SSK \| M Interior \| LUX H8 \| M3 Spoiler \| ModmyNav

03-01-2013, 01:08 AM	#9
Bimmer Barney Private First Class Drives: 2007 335i Sedan Join Date: Jan 2011 Location: Santa Barbara, CA Posts: 187 iTrader: (3)	I kept mine intact. Cyba Quads __________________ 2007 SGM E90 335i JB4, Mr.5 Intake, BMS C@tless DP's, ER Sport Oil Cooler, Cyba Scoops and Quad Tips

05-04-2012, 09:14 PM	#4
theriz Colonel Drives: 335i Join Date: Feb 2011 Location: Ventura County, CA Posts: 2,830 iTrader: (0) Garage List 2011 335i M-Sport [2.00] 2009 X5 [5.00]	bump. would love to know as well.

08-18-2012, 02:58 AM	#5
lxlarry New Member Drives: 2010 bmw 335i sedan M package Join Date: Nov 2011 Location: Toronto, Onatrio Posts: 10 iTrader: (0) Garage List 2010 BMW 335i sedan [0.00]	bump i'm wondering the same question

04-12-2013, 11:30 AM	#10
Castel Captain Drives: BMW 335i Coupe Join Date: Jul 2008 Location: Portland, OR Posts: 739 iTrader: (6)	Finally I was able to fix my droning! I got a bypass valve, basically had to talk a seller on ebay on cutting the exhaust tip and selling and shipping only this part: I then went to the muffler shop and they were able to cut off the tip, remove some tubing and accommodate the bypass valve. The change in sound is subtle but it doesn't drone anymore on the highway and it isn't so loud. Very happy with the mod! Or "unmod" I guess . __________________ 335i Coupe / SG on BK / 6MT / ZSP / ZPP / ZCP / NAV / CA Alufelgen SF71 19"s \| MTech front & rear + CF diffuser + Quads \| M3 Sideskirts \| OEM SSK \| M Interior \| LUX H8 \| M3 Spoiler \| ModmyNav

04-12-2013, 11:34 AM	#11
Randomaccess335 Captain Drives: 07' 335I Join Date: Mar 2011 Location: boynton beach, Fl Posts: 607 iTrader: (9)	I wonder if the valve would cut down the drone on a car with no muffler __________________ JB4 G5 ISO , BMS DCI's, Stock Guted DP's, DO Meth kit Trunk Mount, ETS 5" Intercooler, M6 Rims, ER Charge Pipe, Fordged DV's Cybe 3.8" chrome Tips, Lux Angel Eyes ********12.07 @ 1161.99 60'*********

04-12-2013, 12:06 PM	#12
junitos wReCkz e93 Drives: T0PL3SS BIMM3R Join Date: Nov 2012 Location: VVest Coast Posts: 304 iTrader: (1)	good thread I'm in the process of ordering some quad tip's. Ill make sure I keep the valve or it's a no go. __________________ vvR3cKz 619

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