Found Best X-pipe

Teutonic M3 · 06-10-2010, 09:33 PM

After reading all the opinions here, it became clear that all good X-pipes have an X and a pair of resonators. Well, since factory M3s already have an X and a pair of resonators, the only difference is that the factory X-pipe has a pair of secondary cats.

I know this has been done before here, so since the secondary cats have nothing to do with the CEL lights, I decided to remove them the old fashion way - long drill bit and a crow bar. Then I had two 5 cm long extensions welded onto the pipe ($25) so they would slip over the OEM down pipe. Done.

I doubt anyone makes an X-pipe (no matter how pricey) that gives you any real HP gain over this set-up. Whole thing took about 2 hours.

Who can beat $25 and OEM look and quality?

MrHarris · 06-10-2010, 11:19 PM

Cool story bro, no one can beat your x-pipe.

DevJ · 06-10-2010, 11:23 PM

^

bknight · 06-10-2010, 11:27 PM

Quote:

Originally Posted by MrHarris

Cool story bro, no one can beat your x-pipe.

zamm3k · 06-11-2010, 01:11 AM

........wow.....

tightie · 06-11-2010, 01:25 AM

no comment.

Donbona · 06-11-2010, 02:15 AM

Man you guys are brutal.... give the guy a break

powertrip · 06-11-2010, 02:15 AM

Somebody has been

....a little too much. So much win

.

Splinter4784 · 06-11-2010, 03:00 AM

hahaha

Its Da Best BeRO

SleepyE90 · 06-11-2010, 03:41 AM

Dude you should cut your springs too, that will give you the best drop and is better than motons!

Bob MG · 06-11-2010, 08:02 AM

Quote:

Originally Posted by SuperlativE90

Dude you should cut your springs too, that will give you the best drop and is better than motons!

That's what I did, and man you can't believe how well she handles!!
I doubt any aftermarket suspension could better it!!!

e.n335 · 06-11-2010, 08:05 AM

Never thought about whether the X-pipe should have an X

.

Teutonic M3 · 06-11-2010, 08:27 AM

Otto von Bismark: "It is said that only a fool learns from his own mistakes, a wise man from the mistakes of others."

lm1z · 06-11-2010, 08:29 AM

Quote:

Originally Posted by Teutonic M3

After reading all the opinions here, it became clear that all good X-pipes have an X and a pair of resonators. Well, since factory M3s already have an X and a pair of resonators, the only difference is that the factory X-pipe has a pair of secondary cats.

I know this has been done before here, so since the secondary cats have nothing to do with the CEL lights, I decided to remove them the old fashion way - long drill bit and a crow bar. Then I had two 5 cm long extensions welded onto the pipe ($25) so they would slip over the OEM down pipe. Done.

I doubt anyone makes an X-pipe (no matter how pricey) that gives you any real HP gain over this set-up. Whole thing took about 2 hours.

Who can beat $25 and OEM look and quality?

Good solution if you don't need to replace your OEM pipes in the future. I guess you could always buy another stock pipe if needed, but I wouldn't want to go through the trouble.

I've never been a fan of modding OEM parts. With a car this expensive I want what's on my car to be done right.
I'm a big fan of R&D, build quality and weight savings.

lm1z · 06-11-2010, 08:33 AM

Quote:

Originally Posted by Teutonic M3

Otto von Bismark: "It is said that only a fool learns from his own mistakes, a wise man from the mistakes of others."

Really?
I don't think this quite applies here.

I think you are suggesting that a screwdriver and elbow grease > all other options.

I think you might end up being the fool here

J08M3 · 06-11-2010, 11:10 AM

OP has a point, if all you care about is deleting secondary cats you're a fool to pay so much for an aftermarket Xpipe, unless you plan to go back to stock and need to keep it in tact. If HP or a lot of sound is your goal, then you do need aftermarket solution because you have to get rid of your primaries as well.

OMID INC · 06-11-2010, 11:32 AM

sounds pretty interesting actually. im down to get rid of my secondary cats.

you have any photos?

J08M3 · 06-11-2010, 11:40 AM

Quote:

Originally Posted by OMID INC

sounds pretty interesting actually. im down to get rid of my secondary cats.

you have any photos?

http://www.m3post.com/forums/showthr...ary+cat+delete

lm1z · 06-11-2010, 01:58 PM

Quote:

Originally Posted by J08M3

OP has a point, if all you care about is deleting secondary cats you're a fool to pay so much for an aftermarket Xpipe, unless you plan to go back to stock and need to keep it in tact. If HP or a lot of sound is your goal, then you do need aftermarket solution because you have to get rid of your primaries as well.

my point exactly, but HFC's vs the stock cats will also make a difference as well, especially if you are going the forced induction route. hey, to each his own, i just wouldn't alter my stock piping. it definitely is the way to go if you a) want to save money b) don't need your stock system for the future.

kitw · 06-11-2010, 02:34 PM

Quote:

Originally Posted by J08M3

OP has a point, if all you care about is deleting secondary cats you're a fool to pay so much for an aftermarket Xpipe, unless you plan to go back to stock and need to keep it in tact. If HP or a lot of sound is your goal, then you do need aftermarket solution because you have to get rid of your primaries as well.

See, the issue here is that it's not just your secondary cats. If you want to go back to stock (and if you sell the car, I really hope you are going to do so) you are going to have to buy a new cat section. They're something insane like $5500 from BMW for just the primary + secondary cats. I think your are going to end up saving very little and spending a LOT in the long run... or screwing over whomever buys your car.

lm1z · 06-11-2010, 02:39 PM

Quote:

Originally Posted by kitw

See, the issue here is that it's not just your secondary cats. If you want to go back to stock (and if you sell the car, I really hope you are going to do so) you are going to have to buy a new cat section. They're something insane like $5500 from BMW for just the primary + secondary cats. I think your are going to end up saving very little and spending a LOT in the long run... or screwing over whomever buys your car.

you could just buy a used stock x-pipe

kitw · 06-11-2010, 02:50 PM

Quote:

Originally Posted by lm1z

you could just buy a used stock x-pipe

true dat! have you seen any for sale? I haven't...

06-10-2010, 09:33 PM	#1
Teutonic M3 Private First Class 31 Rep 109 Posts Drives: M3 Join Date: Apr 2010 Location: East iTrader: (0)	Found Best X-pipe After reading all the opinions here, it became clear that all good X-pipes have an X and a pair of resonators. Well, since factory M3s already have an X and a pair of resonators, the only difference is that the factory X-pipe has a pair of secondary cats. I know this has been done before here, so since the secondary cats have nothing to do with the CEL lights, I decided to remove them the old fashion way - long drill bit and a crow bar. Then I had two 5 cm long extensions welded onto the pipe ($25) so they would slip over the OEM down pipe. Done. I doubt anyone makes an X-pipe (no matter how pricey) that gives you any real HP gain over this set-up. Whole thing took about 2 hours. Who can beat $25 and OEM look and quality?
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06-10-2010, 11:19 PM	#2
MrHarris yodog 197 Rep 5,026 Posts Drives: '86 Corolla Join Date: Jun 2007 Location: Diamond Bar, Ca iTrader: (5) Garage List 2009 BMW [10.00]	Cool story bro, no one can beat your x-pipe. __________________ 2009 E92 M3 \| Alpine White \| Black Extended \| Advan RS \| Turner Test Pipes \| Dinan Axle-Back \| OETuning \| Eibach Springs \| UUC SSK \| VRS Front Lip \| VRS Type I Diffuser \| Matte Black \| RPi Scoops \| MS Filter \| Yokohama AD08 \| F1 Pinnacle Special Thanks: Gintani \| OETuning \| eAs
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06-10-2010, 11:23 PM	#3
DevJ Colonel 154 Rep 2,736 Posts Drives: R8 V10+/YMB M4 Join Date: Nov 2007 Location: Tulsa, OK iTrader: (1)	^ __________________ ‘23 RRS First Edition '22 X7 M50i '18 R8 V10+ http://www.bimmerpost.com/forums/attachment.php?attachmentid=133578&d=1204654487[/IMG]
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06-11-2010, 01:11 AM	#5
zamm3k Bla! 82 Rep 909 Posts Drives: F82 M4 Join Date: Apr 2008 Location: Miami, FL iTrader: (4)	........wow..... __________________ ......................::.........................
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06-11-2010, 01:25 AM	#6
tightie JOSH SHOKRI. 524 Rep 5,881 Posts Drives: 991 GT3RS, 964, Raptor Join Date: Aug 2005 Location: los angeles, california. iTrader: (7) Garage List 2008 BMW M3 [7.90]	no comment. __________________ Current: 16 991 GT3RS , 91 964 C2, 17 Raptor \| Past: 2015 991 GT3, 2015 i3,15 YMB F80 M3, 13 E92 M3 DCT, 08 E92 M3 6MT, 07 E60 M5, 02 E46 M3 Instagram: @josh_speeddistrict #SpeedDistrict @SpeedDistrict
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06-11-2010, 02:15 AM	#7
Donbona Lieutenant Colonel 166 Rep 1,659 Posts Drives: E93 M3 DCT 2008 Join Date: May 2009 Location: London UK iTrader: (0)	Man you guys are brutal.... give the guy a break __________________ M3 E93 DCT, Space Grey,BC HB29 Forged Deep Concave Wheels, Ericsson Amuse F/R Bumper, Evolve Full Exhaust System, INTRAX Coilovers, STOPTECH BBK, Performance Steering Wheel,Custom Red/Black Leather Seats,///M3 \|\|Bimmerpost M3 Car Of The Month May - 2010SOLD 2010 R35 GTR
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06-11-2010, 02:15 AM	#8
powertrip Scared money don't make money. 67 Rep 1,449 Posts Drives: 2009 E92 M3 DCT Join Date: Apr 2009 Location: Irvine, CA iTrader: (3) Garage List 2009 E92 M3 [0.00]	Somebody has been ....a little too much. So much win . __________________ 2009 E92 M3/DCT/Alpine White/Fox Red/Carbon Leather OE Tuned 402 whp & 303 wtq/Gintani X-pipe/MXP Axle Back/Rogue Pulley/AFE Stage 2/Cosmetics By IND & EAS HUGE THANKS: Gintani, OE Tuning, and EAS
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06-11-2010, 03:00 AM	#9
Splinter4784 414 little horsies 56 Rep 405 Posts Drives: 2008 M3 Join Date: Jan 2009 Location: Beverly Hills iTrader: (2)	hahaha Its Da Best BeRO __________________ Race Precision Inc
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06-11-2010, 03:41 AM	#10
SleepyE90 Lieutenant 26 Rep 506 Posts Drives: Bavarian Join Date: Nov 2009 Location: GhettoBird Metrolpolis iTrader: (1)	Dude you should cut your springs too, that will give you the best drop and is better than motons! __________________
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06-11-2010, 08:05 AM	#12
e.n335 Moderator 270 Rep 4,481 Posts Drives: e93 ///M3 DCT, 07/2009 Join Date: Feb 2007 Location: Switzerland, ZH iTrader: (0)	Never thought about whether the X-pipe should have an X .
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06-11-2010, 08:27 AM	#13
Teutonic M3 Private First Class 31 Rep 109 Posts Drives: M3 Join Date: Apr 2010 Location: East iTrader: (0)	Otto von Bismark: "It is said that only a fool learns from his own mistakes, a wise man from the mistakes of others."
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06-11-2010, 11:10 AM	#16
J08M3 Major General 285 Rep 6,007 Posts Drives: 2011 M3 COUPE Join Date: May 2008 Location: NEW YORK iTrader: (8)	OP has a point, if all you care about is deleting secondary cats you're a fool to pay so much for an aftermarket Xpipe, unless you plan to go back to stock and need to keep it in tact. If HP or a lot of sound is your goal, then you do need aftermarket solution because you have to get rid of your primaries as well. __________________
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06-11-2010, 11:32 AM	#17
OMID INC Lieutenant Colonel 92 Rep 1,562 Posts Drives: E70 X5 Join Date: Feb 2010 Location: Chicago iTrader: (6)	sounds pretty interesting actually. im down to get rid of my secondary cats. you have any photos?
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