Challenge Street mid + M performance catback. Anyone?

LarThaL · 02-02-2013, 04:02 PM

Anyone running this set-up? Any sound clips?

kitw · 02-02-2013, 04:15 PM

it gets nasty raspy with deleting either cats

LarThaL · 02-02-2013, 05:23 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.

SROC5 · 02-02-2013, 05:49 PM

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

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

LarThaL · 02-02-2013, 07:11 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

SROC5 · 02-02-2013, 08:12 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, 11:59 PM

You might be on to something good!

kitw · 02-03-2013, 12:50 AM

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, 09:00 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

Frostbite · 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, 04:02 PM	#1
LarThaL Lieutenant Colonel Drives: 2011 M3 Join Date: Apr 2011 Location: West Springfield, MA Posts: 1,761 iTrader: (0)	Challenge Street mid + M performance catback. Anyone? Anyone running this set-up? Any sound clips? __________________ Daily: Porsche Cayenne GTS Toy: BMW ///M3
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02-02-2013, 05:49 PM	#4
SROC5 Addicted to Track Drives: E92 M3 Join Date: Apr 2009 Location: USCON Posts: 1,268 iTrader: (3)	Doesn't the Challenge Street X-Pipe do that already? http://challenge-usa.com/blog/produc...x-pipe-street/ __________________ ZCP E92 M3 \| Akrapovic Evo \| ESSi \| Swift Spec-R \| APEX ARC-8 \| RS-3 \| PFC-08 \| MS Filter \| MS Spacers \|

03-24-2013, 11:11 AM	#17
mkPOTO Mr. Nice Says Hello Drives: 1999 528I Join Date: Dec 2008 Location: Chicago Posts: 13,492 iTrader: (19) Garage List 2008 BMW E92 M3 [2.66] 1999 BMW E39 528i [2.20] 2007 BMW E92 335I [3.00]	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 __________________ BMW E92 M3 EVOLVE Stage II \| EVOLVE X-Pipe \| EVOLVE E-Tronic Exhaust Macht Schnell Stage II intake \| KW V3 \| Volk TE37SL \| BMW Performance Spoiler

03-24-2013, 11:56 AM	#18
Frostbite EuroSquad Drives: Frozen Grey Edition M3 Join Date: Aug 2011 Location: Vegas Posts: 562 iTrader: (0) Garage List '11 Frozen Grey Edi ... [0.50]	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 __________________ 2011 Frozen Grey Edition M3 1 of 30 Ranz Motorsports Custom One-Off Front Bumper & Side Skirts/OE Tuning ECU & DCT Tune/MS Stage 1 Intake Kit & Pulleys/Fabspeed HFC & X-Pipe/OEM Exhaust Mod/Alekshop Front & Rear Cameras/Escort 8500ci Plus/LUX v3 AE's/BMW "Edition" Front Grills, Side Gills & Exhaust Tips/Llumar CTX & Air Blue/Xpel Stealth PPF

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02-02-2013, 04:15 PM	#2
kitw Colonel Drives: 2013 AW E92 M3 ZCP M-DCT Join Date: Jun 2007 Location: Bay Area, CA Posts: 2,131 iTrader: (13)	it gets nasty raspy with deleting either cats

02-02-2013, 11:59 PM	#7
L4ces Lieutenant Drives: 2008 E92 M3 Alpine White Join Date: Aug 2010 Location: Nj Posts: 449 iTrader: (0) Garage List 2008 M3 [0.00]	You might be on to something good!

02-03-2013, 12:50 AM	#8
kitw Colonel Drives: 2013 AW E92 M3 ZCP M-DCT Join Date: Jun 2007 Location: Bay Area, CA Posts: 2,131 iTrader: (13)	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.

03-21-2013, 09:10 AM	#12
M3Denver First Lieutenant Drives: 2011 BMW M3 Join Date: Mar 2012 Location: Denver CO Posts: 316 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.

03-24-2013, 04:30 AM	#16
dozaiya Private First Class Drives: 2011 E92 M3 Join Date: Nov 2012 Location: Shanghai Posts: 114 iTrader: (0)	these threads about MPE with xpipe always ends up dying with no result...