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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.

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Old Wed, Jul-11-2012, 06:02:04 PM   #1
adrianma
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Default CSL backbox?

does anyone with the change from stock backbox to a CSL backbox?

apart from the weight savings are there any audio gains?
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Old Wed, Jul-11-2012, 06:17:07 PM   #2
Tarmac_E36_M3
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Default Re: CSL backbox?

What is a backbox?

Anything CSL related... You could definitely find all the info via search or Google.
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Old Wed, Jul-11-2012, 06:22:16 PM   #3
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Default

Do you mean airbox?


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Old Wed, Jul-11-2012, 06:30:39 PM   #4
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Default Re: CSL backbox?

Guessing he means rear exhaust muffler (1 with tailpipes on)
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Old Thu, Jul-12-2012, 01:05:57 AM   #5
adrianma
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Default Re: CSL backbox?

yes muffler.

i don't think its been extensively discussed in this forum as its probably the LEAST worth it exhaust mod on the car for american cars.

then again i am coming from a euro spec already so headers/cats etc are already 'euro'.
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Old Thu, Jul-12-2012, 01:09:23 AM   #6
Tarmac_E36_M3
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Default Re: CSL backbox?

There are audio gains, depends on what brand and sound you're looking for. Some consider a gain being quiet and others louder. Now power is a different story...
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1995 M3; single 3" exhaust after cats; CF hood; Apex ARC-8 17x9" wheels; Conti DW 245 square; BC Racing Coilovers.

SOLD: E46 M3 SMG; Intrax coilovers; ACPT CF DS; SS V1 Headers/Section 1; Zionsville Type 17 kit; VAC Ultra light pulley set; BMW MS 4.10; Evolve-R Tune; 2980 lbs.
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Old Thu, Jul-12-2012, 02:43:18 AM   #7
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Default Re: CSL backbox?

i'm specifically referring to the CSL muffler vs a stock muffler actually..
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Old Thu, Jul-12-2012, 03:51:46 AM   #8
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Default Re: CSL backbox?

Yes, it is a lot louder than stock, but not obnoxious like a lot of aftermarket exhausts out there. I love it and wouldn't trade it for anything lest I sold the car..
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Old Thu, Jul-12-2012, 04:21:12 AM   #9
daytonaviolet
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Default Re: CSL backbox?

not sure about the sound, but i hear its 5lbs lighter. so it may have less material inside the muffler or thinner metal?

orig thread here

Quote:
Originally Posted by mikymu
Rear CSL muffler: 50 lbs.............................. US back breaking/shoulder separating muffler: 55 lbs
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Old Thu, Jul-12-2012, 06:20:27 AM   #10
adrianma
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Default Re: CSL backbox?

yeah i read that.. but that thread he switch from a full US to a full CSL which is different.. i'm already on a full euro exhaust in hong kong so the switch to just a CSL box is going to be a lot mild... my friend here is looking to switch out his CSL muffler so i might take a try. i'll post the results up but i doubt anyone intersteed really haha... better going off with something more aftermarket i guess.
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Discussing CSL backbox? in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)