Challenge Street mid + M performance catback. Anyone?

LarThaL · 02-02-2013, 03:02 PM

Anyone running this set-up? Any sound clips?

kitw · 02-02-2013, 03:15 PM

it gets nasty raspy with deleting either cats

LarThaL · 02-02-2013, 04:23 PM

Quote:

Originally Posted by kitw

it gets nasty raspy with deleting either cats

Ok. Has anyone tried just cutting secondary cats and replacing with resonators?

I ask this because on my Porsche Cayenne, I replaced the secondary cats with resonators and it sounds fantastic. The same type of cat delete with a straight pipe is also very raspy, however.

S65V8 · 02-02-2013, 04:49 PM

Doesn't the Challenge Street X-Pipe do that already?

http://challenge-usa.com/blog/produc...x-pipe-street/

LarThaL · 02-02-2013, 06:11 PM

Quote:

Originally Posted by SROC5

Doesn't the Challenge Street X-Pipe do that already?

http://challenge-usa.com/blog/produc...x-pipe-street/

Stock mid pipe has secondary cats + a set of resonators. Challenge has no cats but only one set of resonators.

I was referring to simply cutting the stock secondary cats and welding resonators. This would give you a 4 resonator/no secondary cat set-up

S65V8 · 02-02-2013, 07:12 PM

Quote:

Originally Posted by LarThaL

Stock mid pipe has secondary cats + a set of resonators. Challenge has no cats but only one set of resonators.

I was referring to simply cutting the stock secondary cats and welding resonators. This would give you a 4 resonator/no secondary cat set-up

I see your point.

L4ces · 02-02-2013, 10:59 PM

You might be on to something good!

kitw · 02-02-2013, 11:50 PM

I've found that resonators do cut down on the rasp somewhat, but not completely. I really don't think removing the secondary cats is worth it, I think it's always better to remove the primaries with a $400 test pipe.

MJM · 02-05-2013, 08:00 PM

Quote:

Challenge Street mid + M performance catback. Anyone?Anyone running this set-up? Any sound clips?

I am running the Challenge Engineering "Street" X-pipe with the Akrapovic slip-on if that is of interest to you.

chris s · 03-21-2013, 07:38 AM

Quote:

Originally Posted by MJM

I am running the Challenge Engineering "Street" X-pipe with the Akrapovic slip-on if that is of interest to you.

I'm interested... is that raspy? any sound clips?

i'm about to install a challenge SPORT pipe with akra rear section.

gatorfast · 03-21-2013, 08:20 AM

Quote:

Originally Posted by LarThaL

Stock mid pipe has secondary cats + a set of resonators. Challenge has no cats but only one set of resonators.

I was referring to simply cutting the stock secondary cats and welding resonators. This would give you a 4 resonator/no secondary cat set-up

I have had all 3 set-ups on my car with oem exhaust mod (similar sound to MPE).

First had oem mod only with factory x-pipe and it sounded awesome. Eventually, I wanted more volume so I cut out the secondary cats and replaced with straight pipes. This produced a noticeable increase in volume but also made the sound very raspy. I drove around like that for 6 months or so before getting tired of the sound. Recently I had resonators welded in where the straight pipes were for a quad resonator and no secondary cat setup. Initially I was disappointed by the reduced volume but the tone is much improved. However, not sure how different it sounds now than when I had the secondary cats in place.

M3Denver · 03-21-2013, 09:10 AM

Rasp not to to bad with just test pipes however you can notice it at times. I will be putting some resonators on it this week along With overpriced o2 sensor replacement fml! I'll let you know the result.

SYZ · 03-21-2013, 11:33 AM

Quote:

Originally Posted by M3Denver

Rasp not to to bad with just test pipes however you can notice it at times. I will be putting some resonators on it this week along With overpriced o2 sensor replacement fml! I'll let you know the result.

are you running an m performance?

MJM · 03-22-2013, 12:31 PM

Quote:

chris s: I'm interested... is that raspy? any sound clips?

No raspy sound, just a classy, more aggressive exhaust sound without being too loud. Also no drone at all.!

Sorry I don't have any sound clips.

kitw · 03-22-2013, 02:11 PM

Quote:

Originally Posted by kitw

I've found that resonators do cut down on the rasp somewhat, but not completely. I really don't think removing the secondary cats is worth it, I think it's always better to remove the primaries with a $400 test pipe.

This is what mine sounded like (BMW Performance exhaust + Turner test pipes)

I thought it was too raspy.

dozaiya · 03-24-2013, 04:30 AM

these threads about MPE with xpipe always ends up dying with no result...

mkPOTO · 03-24-2013, 11:11 AM

I was about to purchase a M performance catback, but when I mated it with my challenge xpipe it sounded pretty bad, that is why I went with the evolve e-tronic unit

VegasEgg · 03-24-2013, 11:56 AM

I cut out the stock resonators and added them to my Fabspeed X-pipe to make it quad resonated. The OEM mod was super raspy (a little louder and higher pitched than Kitw's vid) before and now I think the sound is perfect for me. No drone, a little louder than stock while cruising and a nice aggressive tone at WOT

02-02-2013, 03:02 PM	#1
LarThaL Colonel 336 Rep 2,940 Posts Drives: 2011 M3 Join Date: Apr 2011 Location: West Springfield, MA iTrader: (0)	Challenge Street mid + M performance catback. Anyone? Anyone running this set-up? Any sound clips? __________________ **Audi S6 Audi S3 * Porsche Cayman GTS* --Former BMW M3 owner**
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02-02-2013, 03:15 PM	#2
kitw Colonel 471 Rep 2,991 Posts Drives: F91 M8, 991.2 GT3 Join Date: Jun 2007 Location: Bay Area, CA iTrader: (20)	it gets nasty raspy with deleting either cats
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02-02-2013, 04:49 PM	#4
S65V8 _ 808 Rep 3,160 Posts Drives: ... Join Date: Apr 2009 Location: Los Angeles, CA iTrader: (10)	Doesn't the Challenge Street X-Pipe do that already? http://challenge-usa.com/blog/produc...x-pipe-street/
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02-02-2013, 10:59 PM	#7
L4ces Major 337 Rep 1,489 Posts Drives: 2008 E92 M3 Alpine White Join Date: Aug 2010 Location: NJ - NY iTrader: (0) Garage List 2008 M3 [0.00]	You might be on to something good!
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02-02-2013, 11:50 PM	#8
kitw Colonel 471 Rep 2,991 Posts Drives: F91 M8, 991.2 GT3 Join Date: Jun 2007 Location: Bay Area, CA iTrader: (20)	I've found that resonators do cut down on the rasp somewhat, but not completely. I really don't think removing the secondary cats is worth it, I think it's always better to remove the primaries with a $400 test pipe.
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03-21-2013, 09:10 AM	#12
M3Denver Lieutenant 21 Rep 420 Posts Drives: 2011 BMW M3 Join Date: Mar 2012 Location: Denver CO iTrader: (0)	Rasp not to to bad with just test pipes however you can notice it at times. I will be putting some resonators on it this week along With overpriced o2 sensor replacement fml! I'll let you know the result.
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03-24-2013, 04:30 AM	#16
dozaiya Captain 236 Rep 957 Posts Drives: 2011 MW E92 M3 Join Date: Nov 2012 Location: Shanghai iTrader: (1)	these threads about MPE with xpipe always ends up dying with no result...
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03-24-2013, 11:11 AM	#17
mkPOTO Mr. Nice Says Hello 635 Rep 16,662 Posts Drives: BMW M3 \| X5 xdrive 35i MSport Join Date: Dec 2008 Location: USA iTrader: (25) Garage List 2002 Lexus GS300 [0.00] 2008 BMW E92 M3 [5.58]	I was about to purchase a M performance catback, but when I mated it with my challenge xpipe it sounded pretty bad, that is why I went with the evolve e-tronic unit
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03-24-2013, 11:56 AM	#18
VegasEgg Lieutenant 51 Rep 571 Posts Drives: 640i Gran Coupe Join Date: Aug 2011 Location: USA iTrader: (-1) Garage List '11 Frozen Grey Edi ... [1.00]	I cut out the stock resonators and added them to my Fabspeed X-pipe to make it quad resonated. The OEM mod was super raspy (a little louder and higher pitched than Kitw's vid) before and now I think the sound is perfect for me. No drone, a little louder than stock while cruising and a nice aggressive tone at WOT
	Appreciate 0 Quote