Resonator removal
Discussion
Does sound good doesn't it. 
Mine was about £250 though this included a balance pipe welding in, and it did make a slight increase in performance.
The car was having several bits done to it at the time so difficult to say exactly how much, but probably 20bhp extra. It was put on the dyno afterwards but the temperatures were not the same as on the earlier runs when we were messing with a tuning box, so hard to be exact but I'm erring on the conservative side. I've since changed the downpipes so it's different again now, and louder if pressed, though still quiet enough to not be noticeable in traffic/town situations. Apart from the "bark" in the mornings.
Mine was about £250 though this included a balance pipe welding in, and it did make a slight increase in performance.
The car was having several bits done to it at the time so difficult to say exactly how much, but probably 20bhp extra. It was put on the dyno afterwards but the temperatures were not the same as on the earlier runs when we were messing with a tuning box, so hard to be exact but I'm erring on the conservative side. I've since changed the downpipes so it's different again now, and louder if pressed, though still quiet enough to not be noticeable in traffic/town situations. Apart from the "bark" in the mornings.
Assuming the OP does mean an exhaust silencer rather than an intake resonator, £300 is ridiculously expensive.
I don't see why it's be a problem, though. I suppose it might cause a marginal drop in power if the lower back-pressure effects scavenging somehow. I'd imagine simply removing the silencer and replacing it with a pipe is more likely to decrease power than increase it.
I don't see why it's be a problem, though. I suppose it might cause a marginal drop in power if the lower back-pressure effects scavenging somehow. I'd imagine simply removing the silencer and replacing it with a pipe is more likely to decrease power than increase it.
Thought it was always best to leave the resonator alone and remove a silencer if you want to increase the noise. I've seen quite a few cars where only the back box(s) are replaced with straight pipes and the rest of the system is left well alone.
OR the opposite which is to go for no silencers or resonators in the middle and a standard factory back box.
OR the opposite which is to go for no silencers or resonators in the middle and a standard factory back box.
kambites said:
daveenty said:
70mm stainless steel twin pipes on mine, so yes.
Ah if they're stainless, that perhaps makes more sense. Welding stainless is a bit of an arse, from what I remember. The standard mod with MB V8 engined cars is to remove the resonator and secondary cats if desired.
It depends on the car, but the majority I've come across have had a primary and secondary cat per side, then a resonator and finally two back boxes. No other method of silencing, hence the reason for an X pipe or balance pipe to aid with the exhaust.
Most I've seen with these mods have improved the sound, making it deeper and more pronounced, though not made it too loud for comfort.
It depends on the car, but the majority I've come across have had a primary and secondary cat per side, then a resonator and finally two back boxes. No other method of silencing, hence the reason for an X pipe or balance pipe to aid with the exhaust.
Most I've seen with these mods have improved the sound, making it deeper and more pronounced, though not made it too loud for comfort.
To be fair, it will be no louder than some Mercs and other makes are from the factory, a C63 is fairly noisy for example, when you weigh it up with all the diesel lorries, motorbikes, planes and the general ambient racket, one slightly louder (when accelerating) Mercedes isn't really a problem.
My neighbour has a new Discovery, I know when that has started up, the belt whine, diesel clatter etc, it reverberates through the house, I would say that is as noisy as my 350Z with aftermarket exhaust, I dont generally start that up at 6 am though, I also don't drive a diesel Transit down the road at 3am slamming the door at every stop to deliver milk, or arrive in a shagged out Astra with Radio 2 blaring and slam the door in between every paper delivered.
The noise something produces is part of it, of course, but how considerately it is used is a massive part of it.
My neighbour has a new Discovery, I know when that has started up, the belt whine, diesel clatter etc, it reverberates through the house, I would say that is as noisy as my 350Z with aftermarket exhaust, I dont generally start that up at 6 am though, I also don't drive a diesel Transit down the road at 3am slamming the door at every stop to deliver milk, or arrive in a shagged out Astra with Radio 2 blaring and slam the door in between every paper delivered.
The noise something produces is part of it, of course, but how considerately it is used is a massive part of it.
All I require is a little more noise, not enough to upset neighbours just enough that gives it the V8 sound that would make it a nicer driving experience for myself. I've driven an AMG and for me the driving experience is about handling and sound. The car is for me 90%, the sound, again for me would make it a complete drive. Everyone has views, some ridiculous, many useful.
I'm interested in this topic, having just purchased a CLS63 AMG. The engine note is utterly wonderful but I'd love it to be a bit louder. More interested in intake / induction / engine noise than exhaust note, but am also wondering about changes to the exhaust.
OP could you clarify exactly what you mean by 'resonator'?
And anyone have any tips about intake / induction noise - e.g. K&N filters being used? My car is the 2006 one with the NA 6.2 V8.
OP could you clarify exactly what you mean by 'resonator'?
And anyone have any tips about intake / induction noise - e.g. K&N filters being used? My car is the 2006 one with the NA 6.2 V8.
Sea Demon said:
What has happened to Pistonheads? Has everyone been drinking?!
This is what I thought! How quickly people forget that this started out as a TVR site, renowned for their quiet exhausts, lol...Some of these previous posts would be better suited on the pensioner weekly forum or equivalent.In my experience taking out a mid silencer usually just ends in annoying drone inside the cabin and wont necessarily give you the tone you're looking for. You'll need a full system for that.
Hudson said:
£300 to cut a resonator off and weld a bit of pipe in its place? Is there something different for Mercs? I could get my Focus ST done for about £60 according to the forums...
You need to have that done, before changing my exhaust I had the resonator removed on standard, completely changes it and no drone.mjwscorpio said:
Can you let me know where you had it done for £100?
JPS Motorsport in Bletchley (Milton Keynes) (Leon or Harry) I also had the same thing done on my Merc 500 SEL (1981) and it was too loud, raw and droned at 70mph +, so it has just returned from a place called Flow Dynamics (also in Bletchley and about 7 units down from JPS)(Dan or Matt) they charged me £50 for the central boxes delete and then £350 for a custom system including an additional silencer.herewego said:
One problem is that if it increases the noise level outside the car then it's selfish and illegal.
Best mod Ive ever done. Im on my 3rd V8 now and have had it done to all. Just keep the box and if you get tired of it (which you wont) you can have it welded back in place.I did go a bit further with the ISF and had the secondary cat removed and the centre box, which was to loud inside the car so had to have tiny centre box put on to sort it!
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