Sexpanther Posted August 6, 2015 Report Share Posted August 6, 2015 (edited) I will be picking up a 330ci very soon, but I find that the exhaust is a little quiet for my liking. After watching various videos on youtube. I really like the sound from a muffler delete. That means I don't have to mess around with the cats or pull my hair out come MOT time and leave a whiff of petrol wherever I go. Has anyone on here done this? I've also been searching the forums for the best recommended exhaust tip size. I'm thinking of opting for a twin pipe with single inlet off eBay, but I don't know the stock exhaust tip outlet diameter size and what aftermarket outlet size I should opt for. So what size would you guys recommend? Thanksies. Edited August 6, 2015 by Sexpanther Link to comment Share on other sites More sharing options...
autosri Posted August 6, 2015 Report Share Posted August 6, 2015 Search resonator delete Link to comment Share on other sites More sharing options...
Sexpanther Posted August 7, 2015 Author Report Share Posted August 7, 2015 Thanks, gonna have a read up on that. Link to comment Share on other sites More sharing options...
Chimp Choker Posted August 7, 2015 Report Share Posted August 7, 2015 Yup best £60 I spent, except for that time I was in Brazil though Sent from my LG-H815 GRE608Y 1 Link to comment Share on other sites More sharing options...
evokid Posted August 8, 2015 Report Share Posted August 8, 2015 Agree had mine removed on my 328ci, 2nd best £60 spent too :-) Link to comment Share on other sites More sharing options...
evokid Posted August 8, 2015 Report Share Posted August 8, 2015 Before After GRE608Y 1 Link to comment Share on other sites More sharing options...
E46 Coupe Posted August 8, 2015 Report Share Posted August 8, 2015 Can this only be done in 330s? Can it be removed on a 320ci? Link to comment Share on other sites More sharing options...
LiamGTR Posted August 8, 2015 Report Share Posted August 8, 2015 Either: Muffler delete - louded Resonator delete - deepest 2nd CAT - not sure how that changes the sound Link to comment Share on other sites More sharing options...
berts Posted August 8, 2015 Report Share Posted August 8, 2015 where would you be able to get a resonator delete done? Link to comment Share on other sites More sharing options...
evokid Posted August 8, 2015 Report Share Posted August 8, 2015 I just searched for my nearest Powerflow exhaust centre, which happened to be a MR Tyre place :-) berts 1 Link to comment Share on other sites More sharing options...
evokid Posted August 8, 2015 Report Share Posted August 8, 2015 Can this only be done in 330s? Can it be removed on a 320ci? If you have the 2nd resonator then you can remove it :-) Link to comment Share on other sites More sharing options...
evokid Posted August 8, 2015 Report Share Posted August 8, 2015 Just be aware I believe the 330 has twin pipes from cats all the way to back box , whereas mine went from 2 cats into 1 pipe. Link to comment Share on other sites More sharing options...
B0B Posted August 8, 2015 Report Share Posted August 8, 2015 Just be aware I believe the 330 has twin pipes from cats all the way to back box , whereas mine went from 2 cats into 1 pipe. As far as I know all of the M54 based engines have twin pipes. Yours is an M52 as was my first E46 (323) and yep they are 2-1-2 Link to comment Share on other sites More sharing options...
evokid Posted August 8, 2015 Report Share Posted August 8, 2015 Mine M52 2.8 has one big bore pipe from cats back to std exhaust? As per pic above in previous post? But that agrees with parts Catalogue on Realoem. :-) assume the Twin pipes all way back are less restrictive on the 3.0 ? Link to comment Share on other sites More sharing options...
B0B Posted August 8, 2015 Report Share Posted August 8, 2015 Mine M52 2.8 has one big bore pipe from cats back to std exhaust? As per pic above in previous post? But that agrees with parts Catalogue on Realoem. :-) assume the Twin pipes all way back are less restrictive on the 3.0 ? Yeah yours goes from two headers to a single pipe that runs all the way into the back box that has a twin exit 2-1-2 Yeah I assume so too. I'm about to take my exhaust off from the headers and get a nice stainless section made up to go into the new back box I just bought. Eisenmann twin 76mm road version, hopefully it will sound nice on full chat but quiet ish when cruising Link to comment Share on other sites More sharing options...
evokid Posted August 8, 2015 Report Share Posted August 8, 2015 (edited) Nice, suspect that will sound awesome. So your de-Catting, no resonator and just the new back box? I love the sound with Resonator delete, now toying with idea of back box upgrade also! :-) Edited August 8, 2015 by evokid Woddy187 1 Link to comment Share on other sites More sharing options...
B0B Posted August 8, 2015 Report Share Posted August 8, 2015 Nice, suspect that will sound awesome. So your de-Catting, no resonator and just the new back box? I love the sound with Reaonator delete, now toying with idea of back box upgrade also! :-) Yeah I plan to do away with the standard set up, so I will be loosing the secondary cats (apparently it will pass emissions with either the primary or secondary cats fitted) and loosing the resonators too Link to comment Share on other sites More sharing options...
Melv1958 Posted August 9, 2015 Report Share Posted August 9, 2015 What does the non res sound like on a auto? Link to comment Share on other sites More sharing options...
Sexpanther Posted August 10, 2015 Author Report Share Posted August 10, 2015 Sorry for not replying back to the comments guys, had to deal with my brothers wedding over the weekend and got sidetracked as I had the keys to a 435d and the new AMG GT. Anyway, back to topic, I'm not after anything crazy loud as I have an mx5 which has an obnoxiously loud 3.5" exhaust with a decat and i don't want to hear that annoying drone on a daily. Damo88 raised a good question, what do either systems sound like on an auto, is there any difference? Thanks Link to comment Share on other sites More sharing options...
jammo Posted August 11, 2015 Report Share Posted August 11, 2015 My old 330ci (manual) had a res delete and aftermarket backbox and in my opinion that sounded spot on! I was toying with the secondary cats but I think it starts getting louder then! Link to comment Share on other sites More sharing options...
gaz-777 Posted August 11, 2015 Report Share Posted August 11, 2015 I have res delete and it sounds nice, although I would would to replace the factory rear box with an Eisenmann just to amplify it a bit more. Link to comment Share on other sites More sharing options...
DazRave Posted August 11, 2015 Report Share Posted August 11, 2015 (edited) My cat and resi delete: can ONLY JUST hear it from the cabin with the windows up. It's not really loud at all unless you are directly behind the car. Edited August 11, 2015 by DazRave B0B, rickyh147 and GRE608Y 3 Link to comment Share on other sites More sharing options...
Sexpanther Posted August 11, 2015 Author Report Share Posted August 11, 2015 That sounds really really good. I think that's the sound I'm after. Not too loud, but enough to notice. I might opt for a res delete first and go from there. Don't really wanna mess with the cats, as that means more problems to worry about come MOT time. Link to comment Share on other sites More sharing options...
DazRave Posted August 12, 2015 Report Share Posted August 12, 2015 That sounds really really good. I think that's the sound I'm after. Not too loud, but enough to notice. I might opt for a res delete first and go from there. Don't really wanna mess with the cats, as that means more problems to worry about come MOT time. Both Lloyd and Jamie have just the Cats out. There's sounds like mine just not as loud. Comparing the cars, I personally think all the resi really does is muffle things. Link to comment Share on other sites More sharing options...
autosri Posted August 12, 2015 Report Share Posted August 12, 2015 You can pass with one pair of cats Link to comment Share on other sites More sharing options...
