DJ Jonny B Posted April 6, 2008 Report Share Posted April 6, 2008 Im thinking of buying a Pipercross induction kit and as i have never fitted one before a thought i would ask a few questions. Is it a case of unbolting the existing system and fitting the new one or would i have to do a lot more. Do i have to tell my insurance company? Is it going to effect my MPG? Can i put the original back in once done? Will it sound different? (which is knda why i want it) any help will be great, cheers Quote Link to comment Share on other sites More sharing options...
Steviejay Posted April 6, 2008 Report Share Posted April 6, 2008 You spoken to Bry.F yet on this site?? He gets hold/makes the best filters around for the E46.........might be worth your while Pm'ing him for some info on it! Quote Link to comment Share on other sites More sharing options...
BMStyling Posted April 7, 2008 Report Share Posted April 7, 2008 Normally its a case of stripping everything out to the maf, as SJ says tho there are better kits than just a piper X induction kit. You have to remember your going to need to heatshield the filter and have some sort of forced induction to see any benifit at all. With an air filter your always going to see fuel used as your always going to put your foot down more! lol You should tell your insurance, but i wouldnt bother, you can put everything back at a later date if you dont like it to. Tazman861 1 Quote Link to comment Share on other sites More sharing options...
Bry.F Posted April 7, 2008 Report Share Posted April 7, 2008 Normally its a case of stripping everything out to the maf, as SJ says tho there are better kits than just a piper X induction kit. You have to remember your going to need to heatshield the filter and have some sort of forced induction to see any benifit at all. With an air filter your always going to see fuel used as your always going to put your foot down more! lol You should tell your insurance, but i wouldnt bother, you can put everything back at a later date if you dont like it to. Like This Kit Contents Our Heatshield 325CI kit front view 325CI side view Quote Link to comment Share on other sites More sharing options...
BMStyling Posted April 7, 2008 Report Share Posted April 7, 2008 What are your kits made of and what are the retails on yours and the orgional Piper X kits? Quote Link to comment Share on other sites More sharing options...
Bry.F Posted April 8, 2008 Report Share Posted April 8, 2008 We use aircraft grade aluminium which is cut out by water jet to achieve the best finish. It is then folded and powdercoated before we cover the inside surface with heat resistant foam. We have just increased our price recently because of rising material costs so they are now available to forum members for £170 inc p&p. bmwtom 1 Quote Link to comment Share on other sites More sharing options...
chris Posted April 8, 2008 Report Share Posted April 8, 2008 IIRC dont the pipercross ones get clogged up quickly, due to the foam filter? I can vouch for the davef kit, very good Quote Link to comment Share on other sites More sharing options...
holeraider Posted April 10, 2016 Report Share Posted April 10, 2016 Yes will sound different, I got k and n and I loves it Quote Link to comment Share on other sites More sharing options...
ApUhtred Posted October 16, 2016 Report Share Posted October 16, 2016 Anyone fitted one of these kits to a 335i. Just thinking about doing it to mine so would appreciate any feed back. Regards Steve Quote Link to comment Share on other sites More sharing options...
ApUhtred Posted October 16, 2016 Report Share Posted October 16, 2016 Ok done a bit more research. Two things have come up. Oil coverd filters not good for maf sensor. Also only video i have found shows filters just picking up air from engine compartment. It would appear that you need cold dense air to get any improvement in performance. To do this you need to heat shield each filter. Is there room for this and is there a problem with sensor. It would piss me off to have a constant warning light. Help required from someone who knows about these things. Regards Steve Quote Link to comment Share on other sites More sharing options...
chocka Posted October 17, 2016 Report Share Posted October 17, 2016 Waste of time on a diesel Quote Link to comment Share on other sites More sharing options...
ApUhtred Posted October 17, 2016 Report Share Posted October 17, 2016 Cheers for that gem of knowledge. Regards Steve Quote Link to comment Share on other sites More sharing options...
ApUhtred Posted October 17, 2016 Report Share Posted October 17, 2016 Well done all the american sites and it would seem i am waisting my time. No one seems to be running 335i with air induction that can be proved to give any better results than standard. Think I will just try to get a better stock filter. Any ideas on this anyone? Quote Link to comment Share on other sites More sharing options...
Silver Streek Posted October 20, 2016 Report Share Posted October 20, 2016 On a 320d there isn't that much point to be honest. The original filter is very free flowing and the air gets heated up by the turbo anyway which then gets cooled down by the inter cooler. You would be much better off putting the money towards a decent remap, you'll get far more bang for your buck! Better off with an induction kit with a petrol, it will make more difference. Quote Link to comment Share on other sites More sharing options...