Anyone replaced the exhaust tips on stock 35is exhaust?

Gunzaro · 02-16-2014, 08:48 AM

Just wondering if they slip off or are they welded. Cyba has some ace tips available for a new look.

jparnes1 · 02-16-2014, 09:35 AM

Link to the cyba tips?

VailM3 · 02-16-2014, 10:07 AM

Tips on 35iS are welded on (believe for 35i as well) which tips are you looking at you would need a set that would cover the original tips unless you want to cut.

jparnes1 · 02-16-2014, 11:08 AM

Vail, are you sure theyr'e welded and not riveted? Rivets can be drilled out, if that's the case. Mine is in storage, otherwise I'd look myself.

Gunzaro · 02-16-2014, 04:55 PM

http://www.e90post.com/forums/showthread.php?t=703430

They got lots of tips.

CedarZ4 · 02-16-2014, 05:33 PM

I've read multiple time that they were welded on but can not confirm myself as I have not personally looked.

I actually am seriously considering getting some Cyba tips as well, and I think a good follow up question would be if anyone knows what the diameter is for the inlet pipe to the stock exhaust tip is?

HerrK · 02-16-2014, 06:13 PM

Quote:

Originally Posted by CedarZ4

I've read multiple time that they were welded on but can not confirm myself as I have not personally looked.

I actually am seriously considering getting some Cyba tips as well, and I think a good follow up question would be if anyone knows what the diameter is for the inlet pipe to the stock exhaust tip is?

I could go out and measure them, but they along with the rest of the car are quite warm from a top down day drive in SoCal. Besides I really don't feel like laying on my back under the warm car on the hot pavement.

army_men · 02-16-2014, 09:52 PM

they are welded on the 35i, and i bought a pair of cyba quad carbon tips last year. Each side has two tips connected to a Y pipe.

the reason why i havent had it installed still is that the shop needs to cut off a chunk of the stock exhaust to make the Y pipe fit. that includes the vacume pipes on the rear right. not a huge deal but not exactly plug and play.

Gunzaro · 02-16-2014, 10:03 PM

The 35is tips look press fit - http://e89.zpost.com/forums/showthread.php?t=668724

I haven't checked mine either.

Hujan · 02-16-2014, 10:44 PM

Quote:

Originally Posted by army_men

they are welded on the 35i, and i bought a pair of cyba quad carbon tips last year. Each side has two tips connected to a Y pipe.

the reason why i havent had it installed still is that the shop needs to cut off a chunk of the stock exhaust to make the Y pipe fit. that includes the vacume pipes on the rear right. not a huge deal but not exactly plug and play.

Is that only for a quad-tip setup? I was planning to keep the stock configuration (a single tip per side) but with larger (Cyba) tips.

BMWZ4RIDER · 02-20-2014, 03:07 PM

Eventually I would like to go with a CF Rear Diffuser for Dual Exhaust tips. I do not have plans for changing out my OEM Exhaust system but would like a more aggressive look out back with bigger single exhaust tips or going with a double exhaust tip set up. I know I would have to trim heavily my OEM exhaust cut out in the bumper for the Double and I am OK with that. These are from Remus and are bolt on. Has anyone had any experience with these?

CedarZ4 · 02-20-2014, 04:51 PM

Can't speak for the tips themselves but Remus in itself is a good manufacture of exhaust systems, and a few members on here have not just the tips but axle-back system itself. So, quality should not be a concern.

Do be aware though that "bolt on" simply means it is uses a clamp to hold as opposed to welding, but would still require cutting of stock tips.

Hujan · 04-20-2014, 12:28 PM

Does anyone know what the purpose is of the valve after the muffler on the passenger's side? My old standby fabrication guys--Luftkraft Fabrication--are going to source some tips for me, but they say it would be much easier to get tips if I ditch that valve and just come straight off the muffler.

But before we cut off that valve, I'd like to know what it does. Is that what controls the burble in Normal vs Sport modes? Does it tune out low-RPM drone? Does it serve some kind of emissions function?

CedarZ4 · 04-20-2014, 12:42 PM

It's a butterfly valve that is vacuum activated. As you mentioned, it closes at low RPMs to prevent droning on highway and reduce noise in city driving. It is pretty much a silencer. It opens up during WOT or RPMs at around maybe 3,000 to 3,500. It also helps reduce noise on start-up and possibly to help warm up the cats faster.

A lot of people "disable" this mod with the famous "Golf T Mod"

If you remove it, you may experience drone (even with stock exhaust) on highway and as I've read, at around 2,000 RPM (but this is for the E90s). Not sure if it electronically monitored or if it will throw a signal if removed - doubt it as all aftermarket exhaust does without it but can not confirm.

02-16-2014, 08:48 AM	#1
Gunzaro First Lieutenant 37 Rep 378 Posts Drives: Speed Racer Join Date: Jan 2011 Location: In transit iTrader: (0)	Anyone replaced the exhaust tips on stock 35is exhaust? Just wondering if they slip off or are they welded. Cyba has some ace tips available for a new look.
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02-16-2014, 09:35 AM	#2
jparnes1 Colonel 242 Rep 2,387 Posts Drives: 2016 340i, 2012 Z4 35i Join Date: Jan 2010 Location: NY iTrader: (1)	Link to the cyba tips? __________________ 2016 340i XDrive, EBII/black, 6 MT, M Sport, Track Handling, Cold Weather, Tech, Lighting, Driver Assistance Plus. 2012 Z4 35i, ED 2/24/2012, Melbourne Red Metallic, Black Leather, Carbon Trim, 6MT, M Sport, CW, PP, PS, NAV, CA.
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02-16-2014, 10:07 AM	#3
VailM3 Captain 61 Rep 766 Posts Drives: 2011 Z4 35is Join Date: Jan 2013 Location: Geneva Switzerland iTrader: (0)	Tips on 35iS are welded on (believe for 35i as well) which tips are you looking at you would need a set that would cover the original tips unless you want to cut.
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02-16-2014, 11:08 AM	#4
jparnes1 Colonel 242 Rep 2,387 Posts Drives: 2016 340i, 2012 Z4 35i Join Date: Jan 2010 Location: NY iTrader: (1)	Vail, are you sure theyr'e welded and not riveted? Rivets can be drilled out, if that's the case. Mine is in storage, otherwise I'd look myself. __________________ 2016 340i XDrive, EBII/black, 6 MT, M Sport, Track Handling, Cold Weather, Tech, Lighting, Driver Assistance Plus. 2012 Z4 35i, ED 2/24/2012, Melbourne Red Metallic, Black Leather, Carbon Trim, 6MT, M Sport, CW, PP, PS, NAV, CA.
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02-16-2014, 04:55 PM	#5
Gunzaro First Lieutenant 37 Rep 378 Posts Drives: Speed Racer Join Date: Jan 2011 Location: In transit iTrader: (0)	http://www.e90post.com/forums/showthread.php?t=703430 They got lots of tips.
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02-16-2014, 05:33 PM	#6
CedarZ4 Captain 68 Rep 715 Posts Drives: G05 M50i, Tesla M3P Join Date: Jan 2013 Location: SoFL iTrader: (2)	I've read multiple time that they were welded on but can not confirm myself as I have not personally looked. I actually am seriously considering getting some Cyba tips as well, and I think a good follow up question would be if anyone knows what the diameter is for the inlet pipe to the stock exhaust tip is? Last edited by CedarZ4; 02-16-2014 at 05:58 PM..
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02-16-2014, 09:52 PM	#8
army_men Lieutenant 45 Rep 406 Posts Drives: E89 Z4 35i Join Date: Jan 2012 Location: Canada iTrader: (0) Garage List 2011 BMW Z4 35i [10.00]	they are welded on the 35i, and i bought a pair of cyba quad carbon tips last year. Each side has two tips connected to a Y pipe. the reason why i havent had it installed still is that the shop needs to cut off a chunk of the stock exhaust to make the Y pipe fit. that includes the vacume pipes on the rear right. not a huge deal but not exactly plug and play. __________________
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02-16-2014, 10:03 PM	#9
Gunzaro First Lieutenant 37 Rep 378 Posts Drives: Speed Racer Join Date: Jan 2011 Location: In transit iTrader: (0)	The 35is tips look press fit - http://e89.zpost.com/forums/showthread.php?t=668724 I haven't checked mine either.
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02-20-2014, 03:07 PM	#11
BMWZ4RIDER BMWZ4Rider 69 Rep 801 Posts Drives: 2009 BMW Z4 35i Join Date: Dec 2012 Location: Cape Cod, MA iTrader: (0)	Eventually I would like to go with a CF Rear Diffuser for Dual Exhaust tips. I do not have plans for changing out my OEM Exhaust system but would like a more aggressive look out back with bigger single exhaust tips or going with a double exhaust tip set up. I know I would have to trim heavily my OEM exhaust cut out in the bumper for the Double and I am OK with that. These are from Remus and are bolt on. Has anyone had any experience with these? Attached Images __________________ 2009 BMW Z4 35i/SMG/DCT/Premium,Cold, Sound PK/Com Acc/Ash/PDC/Wind Deflector/Smoked Reflectors/Red Calipers/Cl Mask/M Series Grill/6000K LED's/De-Badged/M Pedals/CF Mirrors-Engine Cover/Stubby/20% Tint/H8 LED's/LCI Side Markers/Sniper Sprint Spoiler/VMR V710/H&R Sport Springs/KN.
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02-20-2014, 04:51 PM	#12
CedarZ4 Captain 68 Rep 715 Posts Drives: G05 M50i, Tesla M3P Join Date: Jan 2013 Location: SoFL iTrader: (2)	Can't speak for the tips themselves but Remus in itself is a good manufacture of exhaust systems, and a few members on here have not just the tips but axle-back system itself. So, quality should not be a concern. Do be aware though that "bolt on" simply means it is uses a clamp to hold as opposed to welding, but would still require cutting of stock tips.
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04-20-2014, 12:28 PM	#13
Hujan Brigadier General 569 Rep 3,742 Posts Drives: M3 Join Date: Apr 2013 Location: . iTrader: (16)	Does anyone know what the purpose is of the valve after the muffler on the passenger's side? My old standby fabrication guys--Luftkraft Fabrication--are going to source some tips for me, but they say it would be much easier to get tips if I ditch that valve and just come straight off the muffler. But before we cut off that valve, I'd like to know what it does. Is that what controls the burble in Normal vs Sport modes? Does it tune out low-RPM drone? Does it serve some kind of emissions function?
	Appreciate 0 Quote

04-20-2014, 12:42 PM	#14
CedarZ4 Captain 68 Rep 715 Posts Drives: G05 M50i, Tesla M3P Join Date: Jan 2013 Location: SoFL iTrader: (2)	It's a butterfly valve that is vacuum activated. As you mentioned, it closes at low RPMs to prevent droning on highway and reduce noise in city driving. It is pretty much a silencer. It opens up during WOT or RPMs at around maybe 3,000 to 3,500. It also helps reduce noise on start-up and possibly to help warm up the cats faster. A lot of people "disable" this mod with the famous "Golf T Mod" If you remove it, you may experience drone (even with stock exhaust) on highway and as I've read, at around 2,000 RPM (but this is for the E90s). Not sure if it electronically monitored or if it will throw a signal if removed - doubt it as all aftermarket exhaust does without it but can not confirm.
	Appreciate 0 Quote