Another DP question

MAK2008 · 10-24-2011, 01:06 PM

OK, I'm saving up for a DP around xmas. I think I know which one I'm going to get (AR probably because I've heard nothing bad about them and they are local and can install it for me) but I have a few questions.

Do I get the full benifit of the DP if I use the stock exhaust?
How much louder is it with a DP for just regular driving?

I just enabled that CANflap open option on the JB and it's noticibly louder. I'm not sure I'm going to be able to live with it being too much louder. I certainly don't want any droning.

What should my next mod be on this thing after the DP? I want to max out power first then move on to suspension and wheels.

shockin330i · 10-24-2011, 01:20 PM

You have an xi and i do believe that xi's have an extra set of cats in the exhaust, not sure if they have determined if they are cats or resonators. Under normal driving the sound will be the same, its not until you let her rip that you will notice an increase of sound.

j2m · 10-24-2011, 01:22 PM

Don't forget you have the second set of cats in the mid-pipes. If you want FULL BENEFIT you gotta ditch the mid cats. I did it and it sounds really good!
I would wait to see what it sounds like with DP before doing exhaust. Even with exhaust, catless DP and Mid-Cats gone I do not get any drone.

Chadd · 10-24-2011, 01:36 PM

I recently replaced my oem downpipes with macht schnell kitty less downpipes and it is louder. I personally like the sound and its not too loud for my taste. But my wife thinks it sounds like crap. Its especially loud when its warming up. Its not that much louder once its warmed up and driving. The rest of my exhaust is stock and I think it sounds perfect how it is now. I don't think I will upgrade the rest of the exhaust system either.

You should definitely sit in a ride that has downpipes installed first. It might just be too loud for you.

I thought you get the full benefit of downpipes by just replacing them but I could be wrong. I noticed a significant change in throttle response.

I did my performance upgrades in the following order and my car feels like a whole different animal now.
1) JB4
2) DCI
3)Meth
4)Downpipes
next mod will probably be an fmic and then if funds permit lsd.

Good luck.

ar design · 10-25-2011, 10:23 AM

Quote:

Originally Posted by MAK2008

OK, I'm saving up for a DP around xmas. I think I know which one I'm going to get (AR probably because I've heard nothing bad about them and they are local and can install it for me) but I have a few questions.

Do I get the full benifit of the DP if I use the stock exhaust?
How much louder is it with a DP for just regular driving?

I just enabled that CANflap open option on the JB and it's noticibly louder. I'm not sure I'm going to be able to live with it being too much louder. I certainly don't want any droning.

What should my next mod be on this thing after the DP? I want to max out power first then move on to suspension and wheels.

DP, FMIC, meth. Come by the shop and take a look at a downpipe in person!

Mike@N54Tuning.com · 10-25-2011, 01:55 PM

Quote:

Originally Posted by MAK2008

OK, I'm saving up for a DP around xmas. I think I know which one I'm going to get (AR probably because I've heard nothing bad about them and they are local and can install it for me) but I have a few questions.

Do I get the full benifit of the DP if I use the stock exhaust?
How much louder is it with a DP for just regular driving?

I just enabled that CANflap open option on the JB and it's noticibly louder. I'm not sure I'm going to be able to live with it being too much louder. I certainly don't want any droning.

What should my next mod be on this thing after the DP? I want to max out power first then move on to suspension and wheels.

Definetly swing by ar design shop since you are local to them. Andrew will take care of you and answer all your questions!

Mike

ian2002525 · 10-29-2011, 03:32 PM

Are there any O2sim for n55 available??

ar design · 10-31-2011, 09:41 AM

Only the BMS CAN Tool

Mike@N54Tuning.com · 10-31-2011, 10:35 AM

Quote:

Originally Posted by ar design

Only the BMS CAN Tool

or the JB4 Stage2

Mike

ian2002525 · 10-31-2011, 11:20 AM

Quote:

Originally Posted by Mike@N54Tuning.com

or the JB4 Stage2

Mike

you mean jb4 stage2 has dp fix built-in like for n54 or juat the CANclear?
i need it to pass the emission.

Mike@N54Tuning.com · 11-01-2011, 10:26 AM

Quote:

Originally Posted by ian2002525

you mean jb4 stage2 has dp fix built-in like for n54 or juat the CANclear?
i need it to pass the emission.

The JB4 has the same system like the CanTool. If you need to pass a sniffer test, then what kind of o2 sims you use is not important.

Are you referring to the OBD diagnostic test?

Mike

CPWINCH · 11-01-2011, 11:06 AM

Quote:

Originally Posted by Mike@N54Tuning.com

The JB4 has the same system like the CanTool. If you need to pass a sniffer test, then what kind of o2 sims you use is not important.

Are you referring to the OBD diagnostic test?

Mike

In confused. He has a procede which already deletes the codes. What are u asking about Ian . Nothing will help you pass a sniff test , excpet cats

madmanhiker · 11-01-2011, 01:41 PM

Quote:

Originally Posted by CPWINCH

Nothing will help you pass a sniff test , excpet cats

^^ correct statement. ^^

10-24-2011, 01:06 PM	#1
MAK2008 Private 11 Rep 91 Posts Drives: 2011 335xi coupe blk/red int Join Date: Apr 2008 Location: Denver Colorado iTrader: (0)	Another DP question OK, I'm saving up for a DP around xmas. I think I know which one I'm going to get (AR probably because I've heard nothing bad about them and they are local and can install it for me) but I have a few questions. Do I get the full benifit of the DP if I use the stock exhaust? How much louder is it with a DP for just regular driving? I just enabled that CANflap open option on the JB and it's noticibly louder. I'm not sure I'm going to be able to live with it being too much louder. I certainly don't want any droning. What should my next mod be on this thing after the DP? I want to max out power first then move on to suspension and wheels.
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10-24-2011, 01:20 PM	#2
shockin330i Brigadier General 798 Rep 4,784 Posts Drives: 2016 ZCP M3 Join Date: Jan 2007 Location: f y'all, I'm from Texas (RGV) iTrader: (1)	You have an xi and i do believe that xi's have an extra set of cats in the exhaust, not sure if they have determined if they are cats or resonators. Under normal driving the sound will be the same, its not until you let her rip that you will notice an increase of sound. __________________ ERnie 2016 BSM/f80/ZCP
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10-24-2011, 01:22 PM	#3
j2m Colonel 180 Rep 2,446 Posts Drives: '11 E92 M3 DCT Join Date: Jun 2011 Location: Calgary, Ab iTrader: (8) Garage List 2011 BMW E92 M3 [10.00]	Don't forget you have the second set of cats in the mid-pipes. If you want FULL BENEFIT you gotta ditch the mid cats. I did it and it sounds really good! I would wait to see what it sounds like with DP before doing exhaust. Even with exhaust, catless DP and Mid-Cats gone I do not get any drone. __________________ 11' E92 M3 Space Grey \| DCT \| ESS VT2- 625 \| Gintani Race (valved) + Quad Res Catless X-Pipe \| KW Sleeve's \| GC Camber Plates\|Arkym Diffuser \| Vorsteiner VRS Lip \| P3 Boost Guage \| Stud Conversion PHOTO's: Click Here ESS VT2 625 PHOTOS: Click Here
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10-24-2011, 01:36 PM	#4
Chadd Banned 25 Rep 513 Posts Drives: 08 AW 335 Join Date: Aug 2009 Location: Woodland Hills, California iTrader: (15)	I recently replaced my oem downpipes with macht schnell kitty less downpipes and it is louder. I personally like the sound and its not too loud for my taste. But my wife thinks it sounds like crap. Its especially loud when its warming up. Its not that much louder once its warmed up and driving. The rest of my exhaust is stock and I think it sounds perfect how it is now. I don't think I will upgrade the rest of the exhaust system either. You should definitely sit in a ride that has downpipes installed first. It might just be too loud for you. I thought you get the full benefit of downpipes by just replacing them but I could be wrong. I noticed a significant change in throttle response. I did my performance upgrades in the following order and my car feels like a whole different animal now. 1) JB4 2) DCI 3)Meth 4)Downpipes next mod will probably be an fmic and then if funds permit lsd. Good luck. Last edited by Chadd; 10-24-2011 at 01:42 PM..
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10-29-2011, 03:32 PM	#7
ian2002525 台灣台北市 88 Rep 1,267 Posts Drives: 2009 GT-R Premium Join Date: Jun 2010 Location: Brentwood, TN/台灣 iTrader: (6) Garage List 2011 335i coupe [9.00]	Are there any O2sim for n55 available?? __________________ Car Sold- 2011 E92 335i Msport Car Sold- 2009 Nissan GT-R tuned on E85
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10-31-2011, 09:41 AM	#8
ar design 296 Rep 4,408 Posts Drives: 04 M3 Join Date: Jan 2008 Location: Denver, CO iTrader: (9)	Only the BMS CAN Tool __________________ -Critter
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