cats

Hi All, I am looking to remove the secondary cats on my c63 and replacing them with milltek bypass pipes. Wondering if something like that needs to be declared to the insurance at all? the second cats as far i know dont do much? thanks

Is there consensus on a preferred racing CAT manufacturer for E55s and what sort of prices should I be looking at just to buy them (not fit)? Anyone got experience?

Check these bad boys out!! look at the welding :thumb: Custom made and soon to be off the shelf secondary cat delete BUT no probs with mot as there are what looks like secondary cats there but are in fact hollow and smooth for gas flow and they look amazing! And of course 100% bolt in, NO...

Hi all, I've watched loads of videos of people who have removed secondary cats and or resonators. To me, personally, a lot sound really raspy and un-refined, more like a shouting car rather than a deep rumbling puuurrrrr like the original C63 sound. I just watched this video, I think, going...

Does anyone know for definite if an E55K will pass it's MOT if it is only fitted with secondary CATs?

Hi all, I have a bad misfire problem on my car (only on the second bank - P0300, and P0305-8 errors), which I am slowly diagnosing. One of things suggested on many forums is a blocked cat. At the bottom of the downpipes, there are very small looking silencers, which I assumed were the primary...

The catalytic converter has finally holed through after 24 years! Has anyone tried the "React" cats for sale on Euro? Or knows of anywhere else that sells decent aftermarket? I fully expect MB would want a gazillion quid for one. Thanks

Hi guys, I've had a slight rattle in my exhaust for a short while now after bottoming out on a speed bump which has recently gotten worse. It's a metallic rattle that gets worse when the car has no load or when revs drop below 1k, ie full lock when stationary and in drive/reverse while...

Hi I have one hell of a rough running 124 Coupe at the moment.What with the wiring,I have also had a new front section,sadly down to single cat now,for the MOT. However,today has been the second time I've removed my back box as I've been sure my exhaust is blocked. And yup,a big lump of...

Hey guys, just to let the C63 guys know we have RHD Headers and Catless mids on special for Winter Projects etc... £1999 inc VAT These coupled with a Eurocharged Tune will net you 550bhp + and 700Nm We would prefer they are installed by one of our approved partners :Prestige Car...

My W211 E55AMG started making strange exhaust noises - much louder and throater than before. Took it into a Mercedes Specialist in St Albans who promptly diagnosed it as the primary cats breaking up, and gave me a price of £3600 for MB genuine parts & labour to fit. Funnily enough I decided...

My neighbour phoned me after his return from a week in Devon, a few days ago and mentioned his wifes car was making a hell of a noise. It transpired the Cat was stolen along with making a mess of the exhaust pipes either end. Now, this morning I just read the same happened to a Honda owner...

Would empty cats make turbo sound very loud even at low revs?? Thanks

hi iam wanting o do x pipe and sec xats delete on my e55,any good places in Yorkshire and also what kind of cost am i looking at. Thanks

Was thinking of doing the above, I already have the centre box removed. Bit confused as some people say there maybe loss of back pressure, others have said the car feels faster? Thoughts? Views? Cars potentially booked for Thursday

Hi guys, just had my secondary cats deleted. Now I know these used to be worth a bit as I sold a set off my old clk a few years, has anyone sold any recently and if so what are they fetching? On a seperate note the car is still too quiet (w208 clk55) so I'm going back next week to remove the...

About a week ago, I found 2 lumps of turd, some pee (on bonnet) and paw prints all over the roof and wing of my Boxster. They looked like cat prints to me. I cleaned/washed it all off. Last night, same paw prints and dirt but no pee or turds. Amazingly, no scratches that I can see on...

Morning all, I started the car this morning to hear the dreaded rattle when i put my foot down on the pedal. It could be a loose heat shield or worst still the Cats... I have read most of the posts on here about getting them removed. Been calling around a few places and been quoted £250...

has anyone done this? did you keep the balancing pipe? can you describe the difference in sound? any increase in power? I have the rear silencer removed already, so am concerned that it might be too loud and abrasive .. thoughts anyone?

I've been trawling for ages about this subject and cannot find a difinitive answer. Can someone please confirm what CATS are fitted as standard by AMG. Are they 100 CELL, 200, 400 or worse?