Billz Posted April 18, 2015 Report Share Posted April 18, 2015 Hey guys, anyone got a power flow exhaust back box and twin pipe on there 320d or 330d? I've had mines fitted for 7-8 months now and is already starting to rust on the edges. Anyone else had this issue and how to sort it out if you have. Cheers Link to comment Share on other sites More sharing options...
StuBeeDoo Posted April 19, 2015 Report Share Posted April 19, 2015 (edited) On just about every other car forum I've been on, PowerFlow have been noted for poor quality of either materials or workmanship, or both. Personally, I'd leave PowerFlow to the lads who frequent retail park car parks out-of-hours in their Corsas and Clios. Your BMW deserves better quality parts! PowerFlow stuff is cheap for a reason. Edited April 19, 2015 by StuBeeDoo Link to comment Share on other sites More sharing options...
Naj Posted April 19, 2015 Report Share Posted April 19, 2015 I think it depends on what Powerflow branch you head to. Like all franchises - the brand is only as good as those executing the job. Anyway, don't powerflow offer both mild and stainless steel? And don't they do a lifetime warranty? Link to comment Share on other sites More sharing options...
Shabaza Posted April 19, 2015 Report Share Posted April 19, 2015 I have powerflow on my e31 and its extremely barry. Asbo worthy noise. However the quality of the product seems great - mine has been fitted a year ago and still looks spotless and I rarely clean my car jammo 1 Link to comment Share on other sites More sharing options...
Billz Posted April 19, 2015 Author Report Share Posted April 19, 2015 It does have a lifetime warranty on the stainless steel yes but didn't expect it to start rusting this soon, I know it's a diesel and the soot and everything. I can't lie though I love the noise only kicks in when I'm going over 3k rpm exactly how I wanted it Link to comment Share on other sites More sharing options...
LiamGTR Posted April 19, 2015 Report Share Posted April 19, 2015 (edited) I wouldn't use PowerFlow. They produce the most droney exhausts I've ever had fitted (2 different cars (Celica & DC5), 2 different style exhausts and 2 different places (Gateshead & Newcastle)) and they have NO clue as to how to rectify it. Utterly clueless monkeys. Edited April 19, 2015 by LiamGTR Link to comment Share on other sites More sharing options...
StuBeeDoo Posted April 19, 2015 Report Share Posted April 19, 2015 I wouldn't use PowerFlow. They produce the most droney exhausts I've ever had fitted (2 different cars (Celica & DC5), 2 different style exhausts and 2 different places (Gateshead & Newcastle)) and they have NO clue as to how to rectify it. Utterly clueless monkeys. Not the first time I've read comments like this......... Link to comment Share on other sites More sharing options...
LiamGTR Posted April 19, 2015 Report Share Posted April 19, 2015 I may have used the 2 worst in the country by sheer coincidence, but I know I'm not alone in my opinion of PowerFlow. Link to comment Share on other sites More sharing options...
Billz Posted April 19, 2015 Author Report Share Posted April 19, 2015 Maybe I should have asked on here before getting it fitted might resolve to metal polish see if that brings back the chrome. Will be choosing another make for my next bm lol Link to comment Share on other sites More sharing options...
Ed-B Posted April 20, 2015 Report Share Posted April 20, 2015 (edited) I really think it does depend where you go. I went to one near Liverpool which I found through searching for powerflow, but when I got there it was a custom exhaust place (cybox I think), not just a tyre and 'oh we do exhausts as well' sort of place.. However, in future had I been getting something other than a back-box delete, I would go for aftermarket, although it is very expensive for the most part. (I would reccomend this Cybox exhaust place however if you're in the liverpool area, seemed like a professional operation to me and I couldn't fault the work/price they did for me.) Edited April 20, 2015 by Ed-B Link to comment Share on other sites More sharing options...
rasa Posted April 20, 2015 Report Share Posted April 20, 2015 chrome rusts,how can you get a lifetime warranty on chrome,stainless steel,yes, Link to comment Share on other sites More sharing options...
Billz Posted April 20, 2015 Author Report Share Posted April 20, 2015 chrome rusts,how can you get a lifetime warranty on chrome,stainless steel,yes, My bad not chrome but stainless steel lol Link to comment Share on other sites More sharing options...
rasa Posted April 21, 2015 Report Share Posted April 21, 2015 chrome rusts,how can you get a lifetime warranty on chrome,stainless steel,yes, My bad not chrome but stainless steel lol argg Link to comment Share on other sites More sharing options...
Straight6 josh Posted April 21, 2015 Report Share Posted April 21, 2015 i have a rear section in stainless made by powerflow, cant really say much yet as iv only had it a month but so far its been fine ! certainty no rust ! and sounds fantastic ! Link to comment Share on other sites More sharing options...
DennisCooper Posted April 24, 2015 Report Share Posted April 24, 2015 Hi, It absolutely depends which Powerflow franchise you go to. A few years ago, it was well reported and discussed over various forums with some franchises much much better than others. Thankfully, one of the very best is now 400 yards from my house and six years ago when I had them do the backbox on my E39 530d Touring, the level of work and care was excellent. I have the Sport rear bumper and diffuser and the twin oval tailpipes I chose were too big to fit in the cutouts, so I was invited to take a look and stand to watch as the owner of the franchise, very carefully cut the diffuser to allow a good aesthetic and to fit around the tailpipes. It came out absolutely fantastically! I was also advised that if over the following 3-4 weeks once the box had a chance to 'soot up' internally, it sounded too loud or droney, to bring it back for adjustments at a very nominal rate - turns out I didn't need to! I've only ever polished the tailpipes and I've not given the backbox a single second of thought over the last 6 years. Around the same time, another dealer was getting bad reviews. For the record, anyone near to Slough should go to see Naz at Thames Valley Auto's on Petersfield Avenue. Tell him I sent you along ! Cheers, Dennis! Link to comment Share on other sites More sharing options...
Billz Posted May 12, 2015 Author Report Share Posted May 12, 2015 Metal polisher sorted it all out just like new :-) Before After Link to comment Share on other sites More sharing options...
LiamGTR Posted May 12, 2015 Report Share Posted May 12, 2015 I'm more interested in that cabin fibre piece in the rear bumper. Is that wrapped or something you can buy? Link to comment Share on other sites More sharing options...
Billz Posted May 13, 2015 Author Report Share Posted May 13, 2015 I'm more interested in that cabin fibre piece in the rear bumper. Is that wrapped or something you can buy? You mean the carbon fibre rear diffuser? You can buy them looking at around £200 lol but I got mines wrapped for a fraction of the price and looks all the same LiamGTR 1 Link to comment Share on other sites More sharing options...
JackE46 Posted January 21, 2016 Report Share Posted January 21, 2016 bit of a thread revival here but just out of curiosity how much did you pay for your back box with twin pipes? I'm looking at getting one on my 320cd from their Blackburn branch, any feedback on it now you've had it on a few months would be great OP Link to comment Share on other sites More sharing options...
Billz Posted January 24, 2016 Author Report Share Posted January 24, 2016 On 21 January 2016 at 00:18, JackE46 said: bit of a thread revival here but just out of curiosity how much did you pay for your back box with twin pipes? I'm looking at getting one on my 320cd from their Blackburn branch, any feedback on it now you've had it on a few months would be great OP As far as I can remember it was around the £200 mark, since I've had it fitted no problems I love the sound as it sounds like a normal diesel until you put your foot down and then it comes to life but even then after 4K rpm which is exactly what I wanted. The tips do start to rust or just get dirty I think something like that as you can see in the pics basically lol but after a clean with a metal polisher come back up brand new, I'd recommend getting one fitted. Link to comment Share on other sites More sharing options...
J15 CJY Posted March 9, 2016 Report Share Posted March 9, 2016 I had one fitted two years ago... No problem as long as you take it back each year for check up.. It's free and under warranty as long as you do this... Keep polishing the tip and your fine. As for people having the welding rust. It depends on who did the work as a lot are independent fitters. They use cheap weld to cut costs.. And they don't sound chavvy.. I wanted an original look and sound.. They can customise to your tastes so no dtm look bad boi exhausts you found on the old E30's unless you opt for that.. Link to comment Share on other sites More sharing options...
