Hey guys,
I'm thinking of an exhaust mod.
The cats are rattling in mine (they are replacements, not the originals) and I'd like a little more soundtrack.
What do you guys recommend
Here's a picture
The general consensus is to keep the factory center resonator and change the mufflers at the rear of the car. Any tampering with the center resonator results in exhaust drone that is reported to be quite annoying.
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great advice thankyou
magnaflows if on a budget (app 300) , eisenmann sports if you can afford it, (app 1400)
I got a quote about a year ago from Powerflow in Bromley. Was about £800.00 however I never went ahead with it at the time. There is also a company on eBay in Romford who do a cat back for about £650. I am going to pop over there soon and see their work as I still need to do the exhaust
If you remove the centre resonator you will increase the chance of getting drone at low revs - the resonator is there to reduce these low-frequency resonances!
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On 850s yes, or maybe, but on an 840CI it is a HELL NO! Droning will be unbearable. Note I have 3:64 rear differential which might change the shift points a bit.
I stopped driving my 840CI until I found a good condition center resonator and fixed the hypothetical over 100mph issue
FWIW, when I had Magnaflow mufflers with the center resonator, I still had a very loud and obnoxious drone. It was gross.
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Somewhere around 2 and change (inches). Only benefit was that it was light and didn't rust.
Happy with restock exhaust I got from the side of someone's house.
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