Best Downpipes for xi

AltecBX · 11-22-2010, 07:27 AM

Looking to do a few upgrades in the next few weeks. One thing im gonna do is install downpipes. I've been running stock for a while and I'm finally going to pull the the string and install a set of downpipes. I need to know which are the best pipes to install for an xi. Do I get them with or without cats?

Thanks in advance

Kevin@AKMotorwerk · 11-22-2010, 07:28 AM

AR design hands down, especially on an xi, install is harder then an "i" and your gonna want the best fitting pipes you can get. go catless definitely

AltecBX · 11-22-2010, 08:10 AM

Thanks.
How much are those?

Kevin@AKMotorwerk · 11-22-2010, 08:16 AM

Quote:

Originally Posted by AltecBX

Thanks.
How much are those?

i know **********s is going to have a big black friday sale on them, i dont have our price sheet with me, but i think pm'ing **********s will get you the best deal on them. you won't have too much luck finding a set used unfortunately because they are like gold to the people who already have them.

BTM · 11-22-2010, 08:18 AM

Take my advice - after doing DPs this weekend with cheaper pipes I would not go cheap again. Get AR or Macht Snell (not sure if they make for xi)...here is what can happen with cheaper pipes...and if your DIY much easier to just pay for top shell stuff

And go catless with the BMS O2 emulator for sure...my turbo spools much more responsive now that my DPs are catless...

AltecBX · 11-22-2010, 08:25 AM

Cool.
There is no need for me to add the 02 Simulator if I have the Procede, right?

Kevin@AKMotorwerk · 11-22-2010, 08:27 AM

Quote:

Originally Posted by BTM

Take my advice - after doing DPs this weekend with cheaper pipes I would not go cheap again. Get AR or Macht Snell (not sure if they make for xi)...here is what can happen with cheaper pipes...and if your DIY much easier to just pay for top shell stuff

And go catless with the BMS O2 emulator for sure...my turbo spools much more responsive now that my DPs are catless...

i had the same issues with vk's, some fit "semi" good and others were a complete nightmare

Kevin@AKMotorwerk · 11-22-2010, 08:27 AM

Quote:

Originally Posted by AltecBX

Cool.
There is no need for me to add the 02 Simulator if I have the Procede, right?

no you already have that built into the procede, you just have to go into the settings and dial it in

tscdennab · 11-22-2010, 08:32 AM

Quote:

Originally Posted by AltecBX

Thanks.
How much are those?

$830.

BTM · 11-22-2010, 08:38 AM

Quote:

Originally Posted by Kevin@AKMotorwerk

i had the same issues with vk's, some fit "semi" good and others were a complete nightmare

Someone somewhere mentioned they thought VK was Raceland - do you know whether this is true?

Kevin@AKMotorwerk · 11-22-2010, 08:40 AM

Quote:

Originally Posted by BTM

Someone somewhere mentioned they thought VK was Raceland - do you know whether this is true?

i dont think so, but its possible because they both have them made in china, so they may come out of the same place there. i know AR pipes are like decoration, i can stare at those welds all day long

AltecBX · 11-22-2010, 08:53 AM

You guys recommend getting them ceramic coated? If so why and what color?

cn555ic · 11-22-2010, 08:53 AM

Kevin is right. They are quality welds and fitment is the best. I took on the challenge and i am so glad they fit the first time around. I would have been so pissed if i bought pipes that didn't fit right. Dp install is straight forward but it's tedious and time consuming especially if you DIY. On XI models fitment is even more crucial because it's much tighter area

cn555ic · 11-22-2010, 08:54 AM

Yes get then ceramic coated in black.

AltecBX · 11-22-2010, 08:56 AM

Cool. Does color matter?

Kevin@AKMotorwerk · 11-22-2010, 08:57 AM

Quote:

Originally Posted by AltecBX

Cool. Does color matter?

you dont HAVE to get them coated, its just a nice option to have to protect them and reduce some under hood temps, most people dont even bother

tscdennab · 11-22-2010, 08:58 AM

Quote:

Originally Posted by AltecBX

You guys recommend getting them ceramic coated? If so why and what color?

You should ask what temperature, not what color

Choose the cheapest color that withstands about 1700 Fahrenheit...

AltecBX · 11-22-2010, 09:03 AM

Was at modmargains and those where the options. I didn't know color was a big influence as I won't see them. I'll like to you get your opinion to see if getting them coated where worth it.

cn555ic · 11-22-2010, 09:12 AM

I have felt significant reduction in cabin floor temps but I am not going to say it's the ceramic coating because the elimination of cats also is a big factor. If anything they will help protect Dps from harsh east coast winters!

AltecBX · 11-22-2010, 09:17 AM

Gotcha..

Boostin335 · 11-22-2010, 09:31 AM

for XI -- is catless the only option? Having stock exhaust with catless DPs... how bad is the small? I had a catless z06 and sti, and it smelt.

Kevin@AKMotorwerk · 11-22-2010, 09:34 AM

Quote:

Originally Posted by Boostin335

for XI -- is catless the only option? Having stock exhaust with catless DPs... how bad is the small? I had a catless z06 and sti, and it smelt.

no there is catted ones available, i have never noticed a really bad smell from a fully catless 335, i mean you know its not catted, but its not as bad as say the z06 would be at all

11-22-2010, 07:27 AM	#1
AltecBX Colonel 324 Rep 2,663 Posts Drives: BMW 335xi Sedan; BMW M3 ZCP Join Date: Nov 2007 Location: NYC iTrader: (0) Garage List 2018 BMW M3 ZCP [0.00] 2007 BMW 335Xi [0.00]	Best Downpipes for xi Looking to do a few upgrades in the next few weeks. One thing im gonna do is install downpipes. I've been running stock for a while and I'm finally going to pull the the string and install a set of downpipes. I need to know which are the best pipes to install for an xi. Do I get them with or without cats? Thanks in advance __________________ 335xi Sedan 6AT \| Weather(70-85°F) \| N54 Tune Comparison Chart \|\| N54 Turbo Upgrade Comparison Chart -PROcede Rev. 2.5 ~ v5 (3/17 maps) / JB4 (8/21 maps) / COBB (Stg2+FMIC LT Aggressive maps) †Procede Map2(UT 45 - IGN 40) Aggression Target 2.0 \| 0-60 in 4.0sec \|\| †Cobb E30 LT (35% Ethanol/65% 93 Octane) \| 0-60 in 3.9sec AR Design Catless DP \| BMS DCI + OCC \| ETS 5 FMIC \| Alpina B3 Trans Flash \|235/265 19" Michelin PSS
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11-22-2010, 07:28 AM	#2
Kevin@AKMotorwerk General 290 Rep 28,154 Posts Drives: THE GUY YOU LOVE TO HATE Join Date: Mar 2009 Location: hillsborough, nj iTrader: (1)	AR design hands down, especially on an xi, install is harder then an "i" and your gonna want the best fitting pipes you can get. go catless definitely
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11-22-2010, 08:10 AM	#3
AltecBX Colonel 324 Rep 2,663 Posts Drives: BMW 335xi Sedan; BMW M3 ZCP Join Date: Nov 2007 Location: NYC iTrader: (0) Garage List 2018 BMW M3 ZCP [0.00] 2007 BMW 335Xi [0.00]	Thanks. How much are those? __________________ 335xi Sedan 6AT \| Weather(70-85°F) \| N54 Tune Comparison Chart \|\| N54 Turbo Upgrade Comparison Chart -PROcede Rev. 2.5 ~ v5 (3/17 maps) / JB4 (8/21 maps) / COBB (Stg2+FMIC LT Aggressive maps) †Procede Map2(UT 45 - IGN 40) Aggression Target 2.0 \| 0-60 in 4.0sec \|\| †Cobb E30 LT (35% Ethanol/65% 93 Octane) \| 0-60 in 3.9sec AR Design Catless DP \| BMS DCI + OCC \| ETS 5 FMIC \| Alpina B3 Trans Flash \|235/265 19" Michelin PSS
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11-22-2010, 08:18 AM	#5
BTM Banned 483 Rep 10,309 Posts Drives: A///MERICAN!!! Join Date: Mar 2010 Location: A///MERICA!!! iTrader: (11) Garage List 2007 BMW Z4 M Coupe [7.20]	Take my advice - after doing DPs this weekend with cheaper pipes I would not go cheap again. Get AR or Macht Snell (not sure if they make for xi)...here is what can happen with cheaper pipes...and if your DIY much easier to just pay for top shell stuff And go catless with the BMS O2 emulator for sure...my turbo spools much more responsive now that my DPs are catless...
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11-22-2010, 08:25 AM	#6
AltecBX Colonel 324 Rep 2,663 Posts Drives: BMW 335xi Sedan; BMW M3 ZCP Join Date: Nov 2007 Location: NYC iTrader: (0) Garage List 2018 BMW M3 ZCP [0.00] 2007 BMW 335Xi [0.00]	Cool. There is no need for me to add the 02 Simulator if I have the Procede, right? __________________ 335xi Sedan 6AT \| Weather(70-85°F) \| N54 Tune Comparison Chart \|\| N54 Turbo Upgrade Comparison Chart -PROcede Rev. 2.5 ~ v5 (3/17 maps) / JB4 (8/21 maps) / COBB (Stg2+FMIC LT Aggressive maps) †Procede Map2(UT 45 - IGN 40) Aggression Target 2.0 \| 0-60 in 4.0sec \|\| †Cobb E30 LT (35% Ethanol/65% 93 Octane) \| 0-60 in 3.9sec AR Design Catless DP \| BMS DCI + OCC \| ETS 5 FMIC \| Alpina B3 Trans Flash \|235/265 19" Michelin PSS
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11-22-2010, 08:53 AM	#12
AltecBX Colonel 324 Rep 2,663 Posts Drives: BMW 335xi Sedan; BMW M3 ZCP Join Date: Nov 2007 Location: NYC iTrader: (0) Garage List 2018 BMW M3 ZCP [0.00] 2007 BMW 335Xi [0.00]	You guys recommend getting them ceramic coated? If so why and what color? __________________ 335xi Sedan 6AT \| Weather(70-85°F) \| N54 Tune Comparison Chart \|\| N54 Turbo Upgrade Comparison Chart -PROcede Rev. 2.5 ~ v5 (3/17 maps) / JB4 (8/21 maps) / COBB (Stg2+FMIC LT Aggressive maps) †Procede Map2(UT 45 - IGN 40) Aggression Target 2.0 \| 0-60 in 4.0sec \|\| †Cobb E30 LT (35% Ethanol/65% 93 Octane) \| 0-60 in 3.9sec AR Design Catless DP \| BMS DCI + OCC \| ETS 5 FMIC \| Alpina B3 Trans Flash \|235/265 19" Michelin PSS
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11-22-2010, 08:53 AM	#13
cn555ic 441 Rep 18,331 Posts Drives: 335i Join Date: Jun 2007 Location: US iTrader: (6)	Kevin is right. They are quality welds and fitment is the best. I took on the challenge and i am so glad they fit the first time around. I would have been so pissed if i bought pipes that didn't fit right. Dp install is straight forward but it's tedious and time consuming especially if you DIY. On XI models fitment is even more crucial because it's much tighter area
	Appreciate 0 Quote

11-22-2010, 08:54 AM	#14
cn555ic 441 Rep 18,331 Posts Drives: 335i Join Date: Jun 2007 Location: US iTrader: (6)	Yes get then ceramic coated in black.
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11-22-2010, 08:56 AM	#15
AltecBX Colonel 324 Rep 2,663 Posts Drives: BMW 335xi Sedan; BMW M3 ZCP Join Date: Nov 2007 Location: NYC iTrader: (0) Garage List 2018 BMW M3 ZCP [0.00] 2007 BMW 335Xi [0.00]	Cool. Does color matter? __________________ 335xi Sedan 6AT \| Weather(70-85°F) \| N54 Tune Comparison Chart \|\| N54 Turbo Upgrade Comparison Chart -PROcede Rev. 2.5 ~ v5 (3/17 maps) / JB4 (8/21 maps) / COBB (Stg2+FMIC LT Aggressive maps) †Procede Map2(UT 45 - IGN 40) Aggression Target 2.0 \| 0-60 in 4.0sec \|\| †Cobb E30 LT (35% Ethanol/65% 93 Octane) \| 0-60 in 3.9sec AR Design Catless DP \| BMS DCI + OCC \| ETS 5 FMIC \| Alpina B3 Trans Flash \|235/265 19" Michelin PSS
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11-22-2010, 09:03 AM	#18
AltecBX Colonel 324 Rep 2,663 Posts Drives: BMW 335xi Sedan; BMW M3 ZCP Join Date: Nov 2007 Location: NYC iTrader: (0) Garage List 2018 BMW M3 ZCP [0.00] 2007 BMW 335Xi [0.00]	Was at modmargains and those where the options. I didn't know color was a big influence as I won't see them. I'll like to you get your opinion to see if getting them coated where worth it. __________________ 335xi Sedan 6AT \| Weather(70-85°F) \| N54 Tune Comparison Chart \|\| N54 Turbo Upgrade Comparison Chart -PROcede Rev. 2.5 ~ v5 (3/17 maps) / JB4 (8/21 maps) / COBB (Stg2+FMIC LT Aggressive maps) †Procede Map2(UT 45 - IGN 40) Aggression Target 2.0 \| 0-60 in 4.0sec \|\| †Cobb E30 LT (35% Ethanol/65% 93 Octane) \| 0-60 in 3.9sec AR Design Catless DP \| BMS DCI + OCC \| ETS 5 FMIC \| Alpina B3 Trans Flash \|235/265 19" Michelin PSS
	Appreciate 0 Quote

11-22-2010, 09:12 AM	#19
cn555ic 441 Rep 18,331 Posts Drives: 335i Join Date: Jun 2007 Location: US iTrader: (6)	I have felt significant reduction in cabin floor temps but I am not going to say it's the ceramic coating because the elimination of cats also is a big factor. If anything they will help protect Dps from harsh east coast winters!
	Appreciate 0 Quote

11-22-2010, 09:17 AM	#20
AltecBX Colonel 324 Rep 2,663 Posts Drives: BMW 335xi Sedan; BMW M3 ZCP Join Date: Nov 2007 Location: NYC iTrader: (0) Garage List 2018 BMW M3 ZCP [0.00] 2007 BMW 335Xi [0.00]	Gotcha.. __________________ 335xi Sedan 6AT \| Weather(70-85°F) \| N54 Tune Comparison Chart \|\| N54 Turbo Upgrade Comparison Chart -PROcede Rev. 2.5 ~ v5 (3/17 maps) / JB4 (8/21 maps) / COBB (Stg2+FMIC LT Aggressive maps) †Procede Map2(UT 45 - IGN 40) Aggression Target 2.0 \| 0-60 in 4.0sec \|\| †Cobb E30 LT (35% Ethanol/65% 93 Octane) \| 0-60 in 3.9sec AR Design Catless DP \| BMS DCI + OCC \| ETS 5 FMIC \| Alpina B3 Trans Flash \|235/265 19" Michelin PSS
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11-22-2010, 09:31 AM	#21
Boostin335 Lieutenant Colonel 562 Rep 1,723 Posts Drives: G82 M4CX, C8, MKIV Supra Join Date: Sep 2007 Location: North/Central NJ iTrader: (2)	for XI -- is catless the only option? Having stock exhaust with catless DPs... how bad is the small? I had a catless z06 and sti, and it smelt.
	Appreciate 0 Quote