Fine with power, but want that downpipe burble

imported_mega · 08-15-2014, 03:26 PM

I'm fine with my cars power running a flash, but I'm looking for a little more exotic sounding exhaust, mostly the catless downpipe burble I hear so often

Thinking about some downpipes and leaving the rest of the exhaust stock, is a jb4 required to keep the o2 sensor check engine light off, or can sims run all the time?

They do yearly obdII plug in readiness checks here and I would rather not stare at a check engine light.

I dont plan on going beyond intake/fmic/dp/tune unless I cant get that sound I want

suggestions ?

Chunner · 08-15-2014, 05:30 PM

Go get a BMW performance exhaust and the BMW PPK Kit. You will get a burble sound you will die for....

TS135i · 08-15-2014, 05:37 PM

^^ +1, even with just PPK it's burble heaven

imported_mega · 08-15-2014, 07:21 PM

I'm doing the DIY PE mod as soon as I pick up another tig welder

isnt the ppk a downgrade on the tune I already run?

A_Squared · 08-15-2014, 07:22 PM

I used those o2 sensor extenders with my wagner downpipes and passed smog without any trouble. No check engine lights or anything. I'm running a dinan s2 tune. I had Eurotek install everything for me. I believe the ones he used for me were by 42 draft design because they are angled...you'll definitely need clearance especially on these cars.

Unrealgraphix · 08-18-2014, 10:35 PM

Do u get the burble with just the performance exhaust on the n55. Just not sure what I want to go with flash or exhaust first. Any input would be greatly appreciated. Thanks guys

135ivert · 08-18-2014, 10:55 PM

Quote:

Originally Posted by A_Squared

I used those o2 sensor extenders with my wagner downpipes and passed smog without any trouble. No check engine lights or anything. I'm running a dinan s2 tune. I had Eurotek install everything for me. I believe the ones he used for me were by 42 draft design because they are angled...you'll definitely need clearance especially on these cars.

Wait, are you running catless DP's, stock N54 mids, and still passed emissions?

A_Squared · 08-19-2014, 12:01 AM

Quote:

Originally Posted by 135ivert

Wait, are you running catless DP's, stock N54 mids, and still passed emissions?

Yessir!

Here is a link to what Leo at Eurotek used.

http://www.etektuning.com/42-draft-o2-sensor-spacer/

135ivert · 08-20-2014, 05:23 PM

Quote:

Originally Posted by A_Squared

Yessir!

Here is a link to what Leo at Eurotek used.

[url]

You've passed a sniffer as well? Sorry to be prying, but I would love to have the HP gains of catless DP's, with the emissions being handled by the N54 mid secondary cats. Not only would I not swap DP's for emissions, we have sniffers randomly placed on freeway onramps and there would be a solid chance I'd get caught by one.

A_Squared · 08-20-2014, 07:16 PM

Quote:

Originally Posted by 135ivert

Quote:

Originally Posted by A_Squared

Yessir!

Here is a link to what Leo at Eurotek used.

[url]

You've passed a sniffer as well? Sorry to be prying, but I would love to have the HP gains of catless DP's, with the emissions being handled by the N54 mid secondary cats. Not only would I not swap DP's for emissions, we have sniffers randomly placed on freeway onramps and there would be a solid chance I'd get caught by one.

Yea we don't have the sniffer test here in NV so it's easier. Just have to have OBD in readiness status

ParkNuts · 08-22-2014, 12:48 PM

I would love for this to work on my N55. Any additional feedback?

08-15-2014, 03:26 PM	#1
imported_mega Colonel 151 Rep 2,213 Posts Drives: various bmw's Join Date: Jul 2007 Location: neverland iTrader: (0)	Fine with power, but want that downpipe burble I'm fine with my cars power running a flash, but I'm looking for a little more exotic sounding exhaust, mostly the catless downpipe burble I hear so often Thinking about some downpipes and leaving the rest of the exhaust stock, is a jb4 required to keep the o2 sensor check engine light off, or can sims run all the time? They do yearly obdII plug in readiness checks here and I would rather not stare at a check engine light. I dont plan on going beyond intake/fmic/dp/tune unless I cant get that sound I want suggestions ? __________________ You only need two tools in life - WD-40 and Duct Tape. If it doesn't move and should, use the WD-40. If it shouldn't move and does, use the duct tape. Driving e82, e72, e85, R53 Gone but not forgotten.. 1974 2002, many various 3s.
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08-15-2014, 05:30 PM	#2
Chunner Captain 161 Rep 964 Posts Drives: BMW 135is \| #341/586 Join Date: Jun 2013 Location: New York iTrader: (1) Garage List '13 BMW 135is #341/586 [9.50]	Go get a BMW performance exhaust and the BMW PPK Kit. You will get a burble sound you will die for.... __________________ 2013 BMW 135is Coupe \| Dinan Stage 3 \| M3 Subframe Bushings \| Dinan Monoball Joints \| Dinan Toe Links \| 1M Strut Bar \| MPS AS/3 - VMR 710's 18x8.5 ET45 / 18x9.5 ET50 \| MPSS - BMW 313's 18x7.5 / 18x8.5 \| Min Grey, Savanna \| Prem, Tech \| DCT \| Beast #341/586 \| *2021 BMW X7 M50i \| Alpine White \| Children Hauler*
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08-15-2014, 05:37 PM	#3
TS135i piggy in the mirror 49 Rep 595 Posts Drives: 2013 6MT 135i Join Date: Jan 2013 Location: Sydney, Australia iTrader: (0)	^^ +1, even with just PPK it's burble heaven __________________ 135i Coupe N55 PPK+JB4 X3 30d LCI
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08-15-2014, 07:21 PM	#4
imported_mega Colonel 151 Rep 2,213 Posts Drives: various bmw's Join Date: Jul 2007 Location: neverland iTrader: (0)	I'm doing the DIY PE mod as soon as I pick up another tig welder isnt the ppk a downgrade on the tune I already run? __________________ You only need two tools in life - WD-40 and Duct Tape. If it doesn't move and should, use the WD-40. If it shouldn't move and does, use the duct tape. Driving e82, e72, e85, R53 Gone but not forgotten.. 1974 2002, many various 3s.
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08-15-2014, 07:22 PM	#5
A_Squared Banned 46 Rep 363 Posts Drives: n54 Join Date: Aug 2013 Location: Las Vegas iTrader: (2)	I used those o2 sensor extenders with my wagner downpipes and passed smog without any trouble. No check engine lights or anything. I'm running a dinan s2 tune. I had Eurotek install everything for me. I believe the ones he used for me were by 42 draft design because they are angled...you'll definitely need clearance especially on these cars.
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08-18-2014, 10:35 PM	#6
Unrealgraphix New Member 3 Rep 20 Posts Drives: 2012 135i Join Date: Aug 2014 Location: NJ iTrader: (0)	Do u get the burble with just the performance exhaust on the n55. Just not sure what I want to go with flash or exhaust first. Any input would be greatly appreciated. Thanks guys
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08-22-2014, 12:48 PM	#11
ParkNuts First Lieutenant 94 Rep 370 Posts Drives: 2021 Tesla Model 3 Performance Join Date: Apr 2011 Location: Dallas iTrader: (0)	I would love for this to work on my N55. Any additional feedback?
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