Hi, to start of im going to look into changing my completely standard exhaust system to something that sounds a little better, ive looked into a few makes like scorpian, miltek, but does anyone recommend a good brand, im not looking so spend huge amounts just something decent and that will give it a bit more of a grunt but also not too loud!?
Reviews would be great thanks
The first thing to do is get your hands on some 328 cats.
The 323 had a single pipe system, and the 328 had dual pipes. It might not make a massive difference, but the 328 cats will fit, and although you'll want a 328 back box to match, it'll give you more options.
It does give you a performance gain you can really notice - the bigger the engine the better. Fuel economy has improved slightly too. Noise is not too much more than standard, but you know its on there when you boot it IYSWIM.
Cost is about £500-600, for that you get a custom made stainless cat back system, with the vortex unit in the middle and a rear silencer. You can choose what tail pipe shape / size you want as well.
Their HQ is in Grays Essex but they have fitting franchises around the country. Give Natalie a ring at HQ, she will give you some good advice :thumbsup
Edit to say they can offer sports cats as well, but its fine with the standard cat.
I might as well reply to this as well as it's the only questions I seem to ask on this forum, and think I now know the 323 exhaust system like the back of my hand!
If you want to change the whole system you will need a 328 cat, then 328/M3/after market back box. From this you will get slight gains a bit of noise, from the restrictive single pipe to a twin pipe.
If you just want a little bit more noise you could go for an after market 328 backbox (I currently have a scorpion backbox on mine with a K&N induction kit), this will sound lovely and you might get a tiny bit of HP from this.
Drop me a PM if you need any more and I will see if I can help.
Also are you thinking of changing this your self, or getting it done at a shop?
hi guys thanks for the replies, 328 system sounds good, and with a sports cat will proberly looking into doing that and luckily my bf is a mechanic so he will be able to fit it for me
Nicci
oh yeh and tralph were about are u in Gloucestershire? im in chelt but havnt heard of you before?
Hi Nicci,
I'm in cheltenham as well haven't seen your bimmer about though, it looks nice love that colour.
Not sure if there is a picture of mine on here but will upload one to my profile asap, so you can spot me
Hiya, aaah small world! yeh ive not long had it, only a few months, my last one was a black 4 door, with the number plate wob, had that for a while but it was pretty hanging
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