Backbox/muffler delete

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GBR1198
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Re: Backbox/muffler delete

Post by GBR1198 » Mon Aug 22, 2016 11:45 am

So did you wrap the perforated pipe and then put the wool back in ?
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longman h
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Re: Backbox/muffler delete

Post by longman h » Tue Aug 23, 2016 10:03 pm

GBR1198 wrote:So did you wrap the perforated pipe and then put the wool back in ?
Yup.

I actually got Paul back round to open it back up again and cut into the pipe that had been welded around the perforated inner pipe which has now eliminated the drone completely but when accelerating, still sounds good.

I'm much happier now.

How are you finding yours?
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discostu49
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Re: Backbox/muffler delete

Post by discostu49 » Tue Aug 23, 2016 11:55 pm

Why did you put the wool back in ?

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longman h
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Re: Backbox/muffler delete

Post by longman h » Wed Aug 24, 2016 6:26 am

discostu49 wrote:Why did you put the wool back in ?
I'm guessing it's to do with keeping the sound quality close to stock and not tinny at all.

It will probably help with keeping noise out of the inside of the car.
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Ciscokid_London
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Re: Backbox/muffler delete

Post by Ciscokid_London » Mon Jan 23, 2017 2:44 pm

Thought I would share my exhaust combination - SuperSprint Decat, Quicksilver tailpipes - Loud on chokes as you would expect, deep drone for normal driving (but quite inside with the windows closed), loud exhaust pop between gear shifts (assume that's because of the decats, or the BOV's are getting old)

AUDI RS6 Sedan - REVO STAGE 2, SuperSprint Decat, Quicksilver Exhausts, Niche 20" Wheels
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rs6danbar
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Re: Backbox/muffler delete

Post by rs6danbar » Tue Feb 14, 2017 6:40 pm

Have anyone tried this with fixing the pipes aswell inside the muffler?

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Ungjaevel
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Re: Backbox/muffler delete

Post by Ungjaevel » Tue Feb 14, 2017 7:33 pm

IanH755 wrote:The 30-45 second long cold start can be mapped down to 2-5 seconds my MRC or alternatively start the car, switch it off immediately and then restart it. That also stops the cold start feature.
Is that something that can be done at home via VCDS or does it, indeed, need to be done by MRC or similar shop?
Hello from Sweden/Philippines. My IKEA geschwindigkeitwagen! (766 hp / 571 kW / 1051 Nm), MRC'd, 22" forged, 'ramix, Milltek, ILR carbon bits, MTM adjustable springs.

rs6_sid
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Re: Backbox/muffler delete

Post by rs6_sid » Tue Feb 14, 2017 7:58 pm

I quite enjoy annoying the neighbours early in the morning if I'm honest.
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IanH755
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Re: Backbox/muffler delete

Post by IanH755 » Wed Feb 15, 2017 10:02 am

Ungjaevel wrote:
IanH755 wrote:The 30-45 second long cold start can be mapped down to 2-5 seconds my MRC or alternatively start the car, switch it off immediately and then restart it. That also stops the cold start feature.
Is that something that can be done at home via VCDS or does it, indeed, need to be done by MRC or similar shop?
It's a map change so MRC etc, however the "switch it on/off again" method works for free :D
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Ungjaevel
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Re: Backbox/muffler delete

Post by Ungjaevel » Wed Feb 15, 2017 10:24 am

IanH755 wrote:It's a map change so MRC etc, however the "switch it on/off again" method works for free :D
Switch on/off or start engine/off?
Hello from Sweden/Philippines. My IKEA geschwindigkeitwagen! (766 hp / 571 kW / 1051 Nm), MRC'd, 22" forged, 'ramix, Milltek, ILR carbon bits, MTM adjustable springs.

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IanH755
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Re: Backbox/muffler delete

Post by IanH755 » Wed Feb 15, 2017 3:15 pm

Sorry, just to be clear - Switch the engine on (1st time) and then immediately switch it back off, then when you switch the engine on again (2nd time) there will be no cold start.
***OLD*** Daytona C5 RS6 Avant - MRC'd - 500HP & 820NM (PistonHeads Link).

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Farravi
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Re: Backbox/muffler delete

Post by Farravi » Thu Feb 16, 2017 5:40 pm

Mine being a straight piped all the way through, is too noisy although I do get a few i just can't find myself appreciating the it makes. I will want to get the backbox modified I suppose to dampen the noise.

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Re: Backbox/muffler delete

Post by AL0500 » Tue Dec 18, 2018 5:34 am

I appreciate this is an old thread.

Q - has anyone left the rear muffler and removed the silencer instead? Any feedback welcomed.
Adam
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Badassgermanlook
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Re: Backbox/muffler delete

Post by Badassgermanlook » Tue Dec 18, 2018 11:50 am

longman h wrote:
Tue Aug 23, 2016 10:03 pm
GBR1198 wrote:So did you wrap the perforated pipe and then put the wool back in ?
Yup.

I actually got Paul back round to open it back up again and cut into the pipe that had been welded around the perforated inner pipe which has now eliminated the drone completely but when accelerating, still sounds good.

I'm much happier now.

How are you finding yours?
Also appreciare this is an old post but @longman h, just trying to understand exactly what you did to you exhaust. Removed secondary cats, cut open backboxes and removed wool then wrapped perforated pipe before welding back together?
Audi RS6 V10 Avant

c3nturi0n
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Re: Backbox/muffler delete

Post by c3nturi0n » Sun Dec 23, 2018 10:42 pm

I have MIJ custom built exhaust... cats removed together with rear silencers - straight through pipes.

Very nice note when driven on motorways but it does have that droning sound that is tad annoying when driven in low gears / revs.


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2008 RS6 Avant (Monza Silver)
- Stage II MRC tune with gearbox (720PS/850Nm)
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