catless DP install

arkow · 10-22-2015, 10:13 AM

Hi,

Does anyone have a catless DP install instructions for n55 335i? i found instructions for 235i, is it the same as 335i?

Thank you

R32DBP · 10-22-2015, 10:59 AM

It's pretty much the same. That's the instructions I used. Once your under the car it's pretty self explanatory and will be a breeze.

arkow · 10-22-2015, 11:05 AM

Quote:

Originally Posted by R32DBP

It's pretty much the same. That's the instructions I used. Once your under the car it's pretty self explanatory and will be a breeze.

got it, i got the instructions printed out, i just wasn't sure if there were any hidden surprises on the 335.

Thanks

G30 B58 · 10-22-2015, 11:16 AM

Pretty straight forward.

Dive in, the water is warm.

arkow · 10-22-2015, 11:18 AM

Quote:

Originally Posted by F32 N55

Pretty straight forward.

Dive in, the water is warm.

haha, thank god my buddy got a lift in his garage, should be a breeze installing these...cant wait to hear a bit more sound out of the MPE...and more power..

G30 B58 · 10-22-2015, 11:18 AM

Quote:

Originally Posted by arkow

Quote:

Originally Posted by F32 N55

Pretty straight forward.

Dive in, the water is warm.

haha, thank god my buddy got a lift in his garage, should be a breeze installing these...cant wait to hear a bit more sound out of the MPE...and more power..

JB4 too, right?

arkow · 10-22-2015, 11:30 AM

Quote:

Originally Posted by F32 N55

JB4 too, right?

yes sir

G30 B58 · 10-22-2015, 12:07 PM

Quote:

Originally Posted by arkow

yes sir

You'll be in heaven.

arkow · 10-22-2015, 12:17 PM

Quote:

Originally Posted by F32 N55

You'll be in heaven.

I hope so, the car needs a bit more exhaust sound..the MPE is nice but i think catless DP will make it perfect..

Buckeyes · 10-22-2015, 02:20 PM

I had a hell of a time getting the lower v band clamp off. I'd spray it with some lube.

arkow · 10-22-2015, 04:05 PM

Quote:

Originally Posted by Trcb777

I had a hell of a time getting the lower v band clamp off. I'd spray it with some lube.

cool, I'll make sure to lube it up if it doesn't come off easily

shivaswrath · 10-23-2015, 09:20 AM

Make sure your clamp from DP to exhaust isn't too rusted - mine was a wreck and it wasn't included in kit.
Also note that some years are different (ie, after 2013 I think larger DP diameter).

arkow · 10-23-2015, 09:50 AM

Quote:

Originally Posted by shivaswrath

Make sure your clamp from DP to exhaust isn't too rusted - mine was a wreck and it wasn't included in kit.
Also note that some years are different (ie, after 2013 I think larger DP diameter).

No rust on my car as its 2015 with 1k miles

, and yes the pipe is 4", just got it yesterday...

ahero4eternity · 10-23-2015, 09:52 AM

What's the estimated install time for a downpipe on these cars?

arkow · 10-23-2015, 09:54 AM

Quote:

Originally Posted by ahero4eternity

What's the estimated install time for a downpipe on these cars?

1 hr on average. I am going to my friends garage as he has a lift and will tackle it myself..

ahero4eternity · 10-23-2015, 10:04 AM

Quote:

Originally Posted by arkow

Quote:

Originally Posted by ahero4eternity

What's the estimated install time for a downpipe on these cars?

1 hr on average. I am going to my friends garage as he has a lift and will tackle it myself..

That's not bad at all. It's been a long time, but I remember it being a real pain on my G35 coupe. Then again, there were two downpipes.

arkow · 10-23-2015, 10:08 AM

Quote:

Originally Posted by ahero4eternity

That's not bad at all. It's been a long time, but I remember it being a real pain on my G35 coupe. Then again, there were two downpipes.

right, my car is only 1 downpipe and from what i read it doesn't seem that bad, plus using a lift instead of ramps will be much easier..

Mike@N54Tuning.com · 10-23-2015, 10:28 AM

Quote:

Originally Posted by R32DBP

It's pretty much the same. That's the instructions I used. Once your under the car it's pretty self explanatory and will be a breeze.

+1

Just be careful not to damage the o2 sensors.

Mike

Mike@N54Tuning.com · 10-23-2015, 10:28 AM

Quote:

Originally Posted by shivaswrath

Make sure your clamp from DP to exhaust isn't too rusted - mine was a wreck and it wasn't included in kit.
Also note that some years are different (ie, after 2013 I think larger DP diameter).

2014+ are 4" flanges and 2012-2013 are 3.5" flanges.

Mike

arkow · 10-23-2015, 10:41 AM

Quote:

Originally Posted by Mike@N54Tuning.com

+1

Just be careful not to damage the o2 sensors.

Mike

got you, do i need special tool to take these out?

1987E30M3 · 10-23-2015, 11:28 AM

They sell special 22MM O2 sensor wrenches and sockets. After you un install the DP, you can use an adjustable sliding wrench or a 22MM wrench but you can risk stripping the nut. I would just by the O2 sensor socket.

Quote:

Originally Posted by arkow

got you, do i need special tool to take these out?

arkow · 10-23-2015, 11:40 AM

Quote:

Originally Posted by 1987E30M3

They sell special 22MM O2 sensor wrenches and sockets. After you un install the DP, you can use an adjustable sliding wrench or a 22MM wrench but you can risk stripping the nut. I would just by the O2 sensor socket.

thanks, will check autozone to see if the have those in stock..

10-22-2015, 10:13 AM	#1
arkow Private First Class 34 Rep 167 Posts Drives: 2012 X3 35i, 2019 M2 Comp Join Date: Sep 2015 Location: US iTrader: (1)	catless DP install Hi, Does anyone have a catless DP install instructions for n55 335i? i found instructions for 235i, is it the same as 335i? Thank you
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10-22-2015, 10:59 AM	#2
R32DBP Lieutenant 181 Rep 396 Posts Drives: 2014 335i M Sport, 2004 .:R32T Join Date: Jul 2008 Location: New Jersey iTrader: (0) Garage List 2004 Volkswagen .:R32 [0.00] 2014 BMW 335i M Sport [0.00]	It's pretty much the same. That's the instructions I used. Once your under the car it's pretty self explanatory and will be a breeze.
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10-22-2015, 11:16 AM	#4
G30 B58 Pace Car Driver 1548 Rep 3,164 Posts Drives: '22 AW G30 B58 M-Sport Join Date: May 2014 Location: my garage in PA iTrader: (0)	Pretty straight forward. Dive in, the water is warm.
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10-22-2015, 02:20 PM	#10
Buckeyes Captain 353 Rep 939 Posts Drives: 2013 335i M Sport Join Date: Jan 2013 Location: Atlanta iTrader: (2)	I had a hell of a time getting the lower v band clamp off. I'd spray it with some lube.
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10-23-2015, 09:20 AM	#12
shivaswrath Brigadier General 649 Rep 4,323 Posts Drives: 2012 335i Join Date: Apr 2008 Location: Lost in NJ iTrader: (3)	Make sure your clamp from DP to exhaust isn't too rusted - mine was a wreck and it wasn't included in kit. Also note that some years are different (ie, after 2013 I think larger DP diameter). __________________ CURRENT: 2017 RS3 (miss you guys) SOLD: 2012 335i Mineral Gray M Performance Exhaust/Brakes/Suspension/LSD\|Bav Stage 1/AMP\|\|ER CP/IC/DP/OC \| Dinan CAI/N55 PWG BIG TURBO\|BMWF30.com
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10-23-2015, 09:52 AM	#14
ahero4eternity Major 452 Rep 1,425 Posts Drives: bmw Join Date: Jul 2015 Location: usa iTrader: (4)	What's the estimated install time for a downpipe on these cars?
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