Special Modd on the C55

[just240]

Justin, when I come across threads like these it makes me think, it's not worth it...

http://mbworld.org/forums/c32-amg-c55-amg-w203/342954-do-not-use-green-air-filters.html

Apparently Green Filters do use oil according to the guys on the US forum? and they don't seem to age well looking at that picture...

Hi Joe, the new pics look great!

I had a big discussion with Olly at Prestige regarding Green vs K&N when buying my fiilters and we looked into both the above issues at the time I had my secondardy de-catt done by Olly. I was heavily advised (again by Olly) not to go the K&N route at the time because of the Oil issues. However, Olly & Jack had been using Green filters in their cars for years & as Olly had also became the Green Filters offical UK importer I decided to buy them.
I can confirm they are made of paper, same as the stock ones but they could also have a "little" (note:very little) Oil inside the filters as they are very densly packed. The K&N filters are different because they are actually coated in Oil & require Oil use when cleaning them.
It's a highly debateable subject what airfilters actually do to a car performace-wise. However, when I took the paper ones out of my standard airbox I was shocked at the amount of; leaves, stones, bits of bark & insects that were in the orginal filters let alone "air-particals passing thru". I can also confirm that my Green filters have had no problems what-so-ever & have definately allowed (proved by rolling-road gains) the engine to breath better. I only do minimal driving in my car (weekend only use & less than 3,000 miles per year) so I am very happy to keep on top of regularly cleaning (i.e shaking-out) the filters a couple of times a year.
All in all the Green filters have worked very well for me without the expenses of replacing the whole airbox design/type.

When are you getting your custom Re-map done?

 

[BenzedUP]

Hi Joe, the new pics look great!

I had a big discussion with Olly at Prestige regarding Green vs K&N when buying my fiilters and we looked into both the above issues at the time I had my secondardy de-catt done by Olly. I was heavily advised (again by Olly) not to go the K&N route at the time because of the Oil issues. However, Olly & Jack had been using Green filters in their cars for years & as Olly had also became the Green Filters offical UK importer I decided to buy them.
I can confirm they are made of paper, same as the stock ones but they could also have a "little" (note:very little) Oil inside the filters as they are very densly packed. The K&N filters are different because they are actually coated in Oil & require Oil use when cleaning them.
It's a highly debateable subject what airfilters actually do to a car performace-wise. However, when I took the paper ones out of my standard airbox I was shocked at the amount of; leaves, stones, bits of bark & insects that were in the orginal filters let alone "air-particals passing thru". I can also confirm that my Green filters have had no problems what-so-ever & have definately allowed (proved by rolling-road gains) the engine to breath better. I only do minimal driving in my car (weekend only use & less than 3,000 miles per year) so I am very happy to keep on top of regularly cleaning (i.e shaking-out) the filters a couple of times a year.
All in all the Green filters have worked very well for me without the expenses of replacing the whole airbox design/type.

When are you getting your custom Re-map done?

Justin, you seem to have done your homework, I’m only basing my opinion on the one or two guys who have had a bad experience. To be fair most of the good reviews have been about Green Filters, only one or two guys have had negative feedback.

You’re exactly the same as me; I only drive the car on dry days & do about 4K a year.

I'm hoping to have the remap done towards the end of March as the car is off road at the moment.

 

[BenzedUP]

out of interest are the new intakes from renntech as well or another manufacturer, i am interested in doing this airbox wise and cant decide between renntech or eurocharged.

Do the intake tubes make ony difference or is it just to complete the whole package.

Are you going for the larger throttle body later?
steve

Hi,
This setup will not fit your car it's only for NA AMG cars.

Looking at the Renntech site the air box for your car looks even more expensive than my air box even though it's smaller and they claim the same gains.. rip off if you ask me.

http://www.renntechmercedes.com/www/catalog/150

The tubes are OEM MB ones, they are bigger than the standard c55 ones so more air will be flowing in the air box, I don’t know if it will add any power but I’m sure it will help with the air flow.

Regarding bigger throttle body I don't think i'll be doing that.

an ECU remap should be good enough.

 

[sheepy67]

R/T 82mm tb and air box is a great combo, I can vouch for it as its on my car but you are looking $6700 + shipping duty/vat, EC package is prob half that and im sure it does the same job..

Hi lopes, yes i saw your setup at traxx, its pretty spectacular, i agree the eurocharged route is the way to go as the price for renntech does not justify the gains.
I had a look at one in Acids shop on monday, it looked the business, show me abit of carbon fibre and i start to drool..

Just saving the pennies now as im having the heads changed for kleemans in the next few weeks...:bannana:

steve

 

[John]

Just saving the pennies now as im having the heads changed for kleemans in the next few weeks...:bannana:

steve

There is an E55K one Youtube with Kleemann headers. Sounds amazing.

Can't say I am not tempted.

I know they are about £1200 for mine. That and a <insert manufacturer here> exhaust...

Have you got a different exhaust or is yours standard?

 

[sheepy67]

Mine has the standard exhaust with ther secondary cat delete and a resonator removal with a x-pipe fitted. All work done by torque flow in birmingham.

It sounds amazing now, so cant wait for the kleeman headers, dont think the wife will appreciate it in the same way though, she already thinks its broke...!!!!

Just want to drive it with the windows down all the time... wonderful

 

[BenzedUP]

To be honest I am tempted to do the De-cat & res delete but I keep hearing people saying there will be changes in the MOT soon and the car will not pass an MOT.

Correct me if I’m wrong here, but I’ve read somewhere that a de-cat could lower the bhp figures on NA cars for some reason, not sure what, it’s to do with pressure etc...?

 

[BTB 500]

The MOT changes came in on Jan 1st, but they only result in an advisory (rather than a fail) until 1st April.

Absence of any standard cats will be a fail after April 1st, even if the emission test is passed. Not sure how the tester will know how many the car should have, but IMHO a big/shiny/new stainless steel pipe is going to make them have a close look.

Removal of centre muffler (a.k.a. resonator) is not a problem, although there's an overall (subjective) test on exhaust volume ... which you can be failed on if it's considered too loud.

 

[John]

To be honest I am tempted to do the De-cat & res delete but I keep hearing people saying there will be changes in the MOT soon and the car will not pass an MOT.

Correct me if I’m wrong here, but I’ve read somewhere that a de-cat could lower the bhp figures on NA cars for some reason, not sure what, it’s to do with pressure etc...?

As BTB says - it will fail. The only way around at the moment it seems is to have the rear CATs 'emptied' but leave the shells.

It would not surprise me if a way to detect empty CATs is available although not sure how that would work.

I understood engines needed some back pressure to work at their best but I don't know the ins and outs of that concept - perhaps without all the CATs there is less which makes a difference?

 

[John]

although there's an overall (subjective) test on exhaust volume ... which you can be failed on if it's considered too loud.

So this is down to the opinion of the tester?

 

[BTB 500]

So this is down to the opinion of the tester?

Yes, it's not a dB reading or anything like that.

The check is

assess subjectively the effectiveness of the silencer in reducing exhaust noise to a level considered to be average for the vehicle

And associated reason for failure

a silencer in such a condition, or of such a type, that the noise emitted from the vehicle is clearly unreasonably above the level expected from a similar vehicle with a silencer in average condition

 

[BenzedUP]

Well that rules out a de-cat for me then… too much hassle plus I wasn’t too sure about it anyway.

 

[Shude]

Removal of centre muffler (a.k.a. resonator) is not a problem, although there's an overall (subjective) test on exhaust volume ... which you can be failed on if it's considered too loud.

In an impartial test one of the members here found that without resonator or rear cats the C55 was still quieter than a new, stock M3.

I understood engines needed some back pressure to work at their best but I don't know the ins and outs of that concept - perhaps without all the CATs there is less which makes a difference?

From what I have read, this is a myth. Exhausts are "tuned" for many reasons, emissions, economy, noise levels etc but removing restrictions will rarely decrease the performance. The quicker you can remove the exhaust gases the quicker the engine can produce more of them!

 

[John]

Well that rules out a de-cat for me then… too much hassle plus I wasn’t too sure about it anyway.

Well, mine passes with the de-cat so don't rule it out just yet.

However, I don't know as yet if I will need to fit CATs which will make it quieter - and then I was thinking about headers and silencer replacement.

If it is not even mentioned - I may not do anything.

I can't decide but like you - it is a lot of hassle and at the end of the day, this **** costs you cold hard cash to resolve and that is what annoys me about it all and puts me off doing anything.

The fact that a ****ty moped can sound like a hundred skeletons having hundred ****s in a hundred dustbins makes it all the more annoying.

 

[BTB 500]

Well, mine passes with the de-cat

Let us know if it does after April 1st!

 

[Bobby Dazzler]

As BTB says - it will fail. The only way around at the moment it seems is to have the rear CATs 'emptied' but leave the shells.

It would not surprise me if a way to detect empty CATs is available although not sure how that would work.

A knock with a knuckle?

 

[trapperjohn]

On the old regs a car could fail its MoT if -

Exhaust noise is clearly in excess to that emitted by a similar vehicle fitted with a standard silencer in average condition.

^ Hows that for a piece of string.

 

[Mobb]

@BenzedUp - did those logos that you have put on the lower part of the Airbox come with the Airbox you bought? Also are they just stickers or made of plastic/metal? Because the actual badges for the boot and the badges that replace the avantgarde on the side of the car are ridiculously rare and go for £100+.

 

[BenzedUP]

@BenzedUp - did those logos that you have put on the lower part of the Airbox come with the Airbox you bought? Also are they just stickers or made of plastic/metal? Because the actual badges for the boot and the badges that replace the avantgarde on the side of the car are ridiculously rare and go for £100+.

It's metal and it came from Renntech with the Airbox.

Olly said, they are very rare and expensive, as with everything that comes from Renntech.

When you getting your airbox? I know it's different design to the C55/SLK55 one.

Think yours will be the same design as the one in Olly's C43.

 

[Shude]

Olly said, they are very rare and expensive, as with everything that comes from Renntech.

I would question the use of the word "rare" when they will sell you as many as you want if you offer them money! They probably have hundreds of them in boxes waiting to go. Not rare in the slightest.