E55k exhaust mod question

[SiSi]

Hi all, sorry if this has been answered before, but I have read a lot of exhaust mod threads and am still not clear.

I have an 04 E55k and the only disappointment with it is lack of noise, especially when pushing on. Essentially, I want to have much more V8 noise when doing WOT. However ,I do live in a quiet neighbourhood, with lots of old people, curtain twitchers etc! They would not take kindly to a raucous exhaust noise on start up or when getting it in to my very narrow garage, which involves a 3 or 4 point turn.

So I still need relative quiet at startup and low revs and then louder roar when planting the throttle - what would be best for this?

 

[daveenty]

Member AMGeed had his modded by MSL Performance a while back.

IIRC it was a secondary cat delete and resonator removal. He likes it, and is impressed with the difference it made, not only to sound but I believe it helped with performance as well.

 

[BlackC55]

I think a resonator delete would be perfect for you.

Give me a call if we can help. We have done plenty in the past.

 

[AMGeed]

Member AMGeed had his modded by MSL Performance a while back.

IIRC it was a secondary cat delete and resonator removal. He likes it, and is impressed with the difference it made, not only to sound but I believe it helped with performance as well.

This is about right. Not much louder on tickover and low revs, but a good growl on acceleration. TBH, I could do with a bit more noise but that will only be achieved with aftermarket headers or C63 mufflers.
Never going to be as shouty as Daves 5.5TT with headers though

 

[b1g1an]

CLS 55 back boxes might give you just what you're looking for if you can find some.

 

[brucemillar]

I want my 55 to pop & bang. Sometimes it does a little on the overrun. I have a secondary cat & resonator delete. Sounds lovely but no pop's & bangs.

 

[AMGeed]

CLS 55 back boxes might give you just what you're looking for if you can find some.

Quite true. Although the same engine as an E55, the CLS is not so well silenced

 

[AMGeed]

I want my 55 to pop & bang. Sometimes it does a little on the overrun. I have a secondary cat & resonator delete. Sounds lovely but no pop's & bangs.

I haven't heard a single 55 engine do that. Only the lovely 63

 

[ChrisA]

iPE valvetronic syetem comprising mid and rear sections.
Valves closed on start up and then when you're away from the curtain twitchers, open the valves and enjoy

iPE is designed for the C63 but 2 pieces of 3" pipe approx a foot long modifies it to suit the CLS55 and E55

I had sec cat delete and res removal but didn't quite do it for me so I went with iPE and very impressed

 

[AMGeed]

iPE valvetronic syetem comprising mid and rear sections.
Valves closed on start up and then when you're away from the curtain twitchers, open the valves and enjoy

iPE is designed for the C63 but 2 pieces of 3" pipe approx a foot long modifies it to suit the CLS55 and E55

I had sec cat delete and res removal but didn't quite do it for me so I went with iPE and very impressed

What's a rough estimate for an IPE Chris?

 

[E55MO]

with the sec cat and res removal and with the iPE exhaust do you experiance any drone at low speed or cruising speed.

I too am in the same boat and would like a little more noise.

 

[SiSi]

Thanks for all the responses so far, very helpful

Think I will probably start with the resonator / secondary cat delete and take it from there. If anyone near South Oxfordshire has this already on an E55k I would love to come and have a listen!

 

[KillerHERTZ]

My indy removed my centre resonator and sounds far better under load, cost about £100 IIRC

 

[SiSi]

What's a rough estimate for an IPE Chris?

Just had a look on the website and it does sound impressive:
iPE (Innotech Performance Exhaust) - The best build Valvetronic exhaust system in the world for supercars.

 

[ChrisA]

What's a rough estimate for an IPE Chris?

I paid £1900 for mid and rear sections

Slight cab drone at around 2000rpm but nothing like it was previous to the iPE install. There is always the "valves closed" option but I can't seem to work it

 

[Alps]

mine pops nicely

C63 rear boxes is the way to go (I have a set for sale if you decide to go this route - leave the middle resonators alone as a lot have suffered droning when you remove these.

do a search - million threads on this

 

[Suky Sangha]

mine pops nicely C63 rear boxes is the way to go (I have a set for sale if you decide to go this route - leave the middle resonators alone as a lot have suffered droning when you remove these. do a search - million threads on this

hi Alps I might take those rear boxes of you mate.... Pm me please with price...taa

Sent from my iPhone using MBClub UK

 

[nickjonesn4]

slightly different question but whats the best way of increasing power from the exhaust without creating more noise

 

[Mat B]

All will increase noise. Best addition would be ' headers' but it will still increase the noise level

 

[nickjonesn4]

All will increase noise. Best addition would be ' headers' but it will still increase the noise level

Cheers - I am happy with some more noise when pushing on just definitely don;t want motorway drone and waking up the neighbours when I start the car. I love the whole "stealth" aspect of it.