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Front silencer removal

2003 - 2009, roadster, coupe, facelift
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Bad_Pritt
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Front silencer removal

Post by Bad_Pritt » Wed Jan 10, 2018 5:25 pm

This one is mine, mid muffler delete and rear muffler from Eisenmann:
https://youtu.be/tD-TF-0O-Bg
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JimBob78
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Front silencer removal

Post by JimBob78 » Fri Jan 12, 2018 11:05 pm

Limonge wrote: Wed Jan 10, 2018 4:01 pm
JimBob78 wrote: Sat Dec 03, 2016 7:21 pmUpdate...
Had this done now and I'm pretty pleased with the results. When potering it just sounds pretty standard, bit deeper on tickover but when step on it it really has a nice tone. I've noticed the occasional muted pop, don't expect loads of crackle, you'd need to change the backbox for that. It also seems to have added a bit more power and improved throttle response but no evidence for that!
Only downside is the mechanic fried a lamda getting some nuts off and is claiming it's not his fault!! No wonder they all have a bad rep...
Hello! I am thinking in doing the same in my facelift 2.5si, did you bypass both of the silencers? I attached the picture to make it easier (red arrows). Did you do anything to the final muffler or is it stock?

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Cheers!
Mine didn't have the smaller box, just the bigger one, maybe different to the 2.5..

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Jollyjoiner
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Front silencer removal

Post by Jollyjoiner » Sat Jan 13, 2018 6:37 pm

Bad_Pritt wrote: Wed Jan 10, 2018 5:25 pmThis one is mine, mid muffler delete and rear muffler from Eisenmann:
https://youtu.be/tD-TF-0O-Bg
That had a nice sound on the drive by :thumbsup: :driving:
2009 35i DCT silver
SLT mapped to 365bhp :)

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Bad_Pritt
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Front silencer removal

Post by Bad_Pritt » Sat Jan 13, 2018 8:12 pm

Thanks :-)
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PinkPineapple44
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Front silencer removal

Post by PinkPineapple44 » Mon Jan 15, 2018 6:03 pm

Limonge wrote: Wed Jan 10, 2018 4:01 pm
JimBob78 wrote: Sat Dec 03, 2016 7:21 pm
Image
Does anyone know what's inside this "little box" extra silencer (as by small arrow above) or what extra it adds over the usual resonator and back boxes found on exhuats? My E89 N52 3.0 has this small box and I've never seen it on any other cars before.

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Bad_Pritt
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Front silencer removal

Post by Bad_Pritt » Mon Jan 15, 2018 8:42 pm

That’s probably a sort of X-pipe. It improves the flow of exhaust gasses. It doesn’t reduce the flow or sound like a muffler.
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Davz
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Front silencer removal

Post by Davz » Mon Jan 15, 2018 10:29 pm

I assume that when the centre cats are removed it would be best to replace with an X pipe to ensure a smooth flow of gases? Anyone done this and found that top end power is improved?

Has anyone done this using an H pipe? Has this improved sound and low down torque?
2006 2.5 Monaco blue, orange footwell lights, Blue boot lights, 20/15mm wheel spacers, Buckley06 gear knob, Aux, MV2's, M pedals, Eibachs, Bilstein B4's, Whiteline front ARB. H&R rear ARB. Roof motor relocated, Alpine speakers, Xenons.

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Mr Whippy
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Front silencer removal

Post by Mr Whippy » Mon Jan 15, 2018 10:57 pm

Pre-facelift were two secondary cats with that mixer box a bit further down, then a back box.

Facelift appear to have a front silencer in one unit (for cheapness I'd assume), so there is no reason you'd need a mixer there.

I think if you want power/performance you'd get two straight smooth pipes right to the OE back-box. At that point you can then tweak the back-box to make it louder etc (no power to find there I wouldn't imagine), or do stuff at the manifold end (sports cats away from the engine/manifolds)
Tinkering with the OE probably won't yield much power I'd bet.
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markprz86
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Front silencer removal

Post by markprz86 » Mon Feb 11, 2019 5:35 pm

Hi,

See if this thread can be revived, as I'm looking at removing the front silencers too.

What price and what garages did people get theirs done at?

Thanks

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