RPI Scoop + KN Filter sound?
10-03-2009, 07:23 AM
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I was wondering for anybody with this combo or a similar combo, does this make any sound? I know cold air intakes I have seen on friends cars make a nice roar when you punch it. Does this combination offer anything as far as increased sound?
On an inline 6 530, not the V8. Thanks for any replies.
On an inline 6 530, not the V8. Thanks for any replies.
10-03-2009, 07:31 AM
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My Ride: 2005 525i, 6spd manual, Premium pkg, Cold Weather pkg
Originally Posted by NYC530XI' post='1023746' date='Oct 3 2009, 11:23 AM
I was wondering for anybody with this combo or a similar combo, does this make any sound? I know cold air intakes I have seen on friends cars make a nice roar when you punch it. Does this combination offer anything as far as increased sound?
On an inline 6 530, not the V8. Thanks for any replies.
On an inline 6 530, not the V8. Thanks for any replies.
10-03-2009, 08:27 AM
#3
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My Ride: '05 545 Titanium Silver, Black Leather - Nav, Logic 7, Cold weather.
Mods:
Carbon filter removed.
M5 iDrive knob.
Umnitza license plate LEDs.
MP3
40% 3M tint
ACS Anti-Roll(sway) bars
RPI Scoop
G-tech Pro RR
CF Roundels
CF Wheel caps
No apreciable change in sound, it's using the stock air box after all and the scoop doesn't do much until you are moving. On other cars the CAI is usually a totally different design to the stock airbox so the sound will be different.
10-03-2009, 08:33 AM
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My Ride: 2011.5 Alpine White E90 M3 | Black Novillo Leather | Carbon Fiber Leather Trim | ZCP | ZP2 | M-DCT | Navigation | Moonroof | 6FL Mods: TMS 12.5mm spacers all around l Hawk HPS Brake Pads l OEM M3 Edition Grills l Paint Matched Side Gills l Key Hole D
If you want sound: go with a "CAI"/cone set-up
If you want performance: go with the RPI scoop+stock air box+filter....sound will be negligible as the stock box is enclosed and will "sound" the same as before the scoop and air filter....what you will have achieved with this set up is more "cool" air coming in. The heat soak/hot air coming in from a CAI/cone set-up ha been discussed many times and there are a few dyno's floating around you can find via the search function for more info. Some say the performance can be felt at lower speeds, others state it helps only at higher speeds....
Choose which ever you like....GL with your decision
(if you want show+performance, just get the red over the black scoop
If you want performance: go with the RPI scoop+stock air box+filter....sound will be negligible as the stock box is enclosed and will "sound" the same as before the scoop and air filter....what you will have achieved with this set up is more "cool" air coming in. The heat soak/hot air coming in from a CAI/cone set-up ha been discussed many times and there are a few dyno's floating around you can find via the search function for more info. Some say the performance can be felt at lower speeds, others state it helps only at higher speeds....
Choose which ever you like....GL with your decision
(if you want show+performance, just get the red over the black scoop
10-03-2009, 08:37 AM
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My Ride: Black 2006 BMW 530i with sport and prem package, staggered 124 wheels, 50% tint, AC Schnitzer aluminum pedals, black interior w/ alum trim set, M style body kit and sound upgrade: Alpine PDX-5, PXE-H660, sub, MBQuart speakers.
Originally Posted by NYC530XI' post='1023746' date='Oct 3 2009, 11:23 AM
I was wondering for anybody with this combo or a similar combo, does this make any sound? I know cold air intakes I have seen on friends cars make a nice roar when you punch it. Does this combination offer anything as far as increased sound?
On an inline 6 530, not the V8. Thanks for any replies.
On an inline 6 530, not the V8. Thanks for any replies.
10-03-2009, 08:45 AM
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My Ride: Alpine White 2006 530Xi (SLD)
I have a 530Xi Stick and I just installed the RPI scoop+BMC filter yesterday (BTW BMC is reportedly better than K&N) - but my point is: I don't hear ANY difference.
Peformance is definitely improved, but not as much as I expected. And not exactly where it need it. For all the people saying this mod adds "punch" at highway speeds, the top end is still too weak.
BTW I strongly recommend (and someone should really make this a package deal - Michael, Bruce...
) to heat wrap the intake tubing. Actually, I've been told to heat wrap the fuel lines and the exhaust as well, but I'm not about to dismount the manifold (it is single on the I-6, right?) for that (translation: I'm lazy )
Peformance is definitely improved, but not as much as I expected. And not exactly where it need it. For all the people saying this mod adds "punch" at highway speeds, the top end is still too weak.
BTW I strongly recommend (and someone should really make this a package deal - Michael, Bruce...
) to heat wrap the intake tubing. Actually, I've been told to heat wrap the fuel lines and the exhaust as well, but I'm not about to dismount the manifold (it is single on the I-6, right?) for that (translation: I'm lazy )
10-03-2009, 08:59 AM
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Thanks for the replies. Does anyone with the 530 have any experience with the sound that the AFE CAI produces? Search doesn't really yield anything relevant to that issue.
10-03-2009, 11:14 AM
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My Ride: 2008 550i Jet Black on Black Leather, SAT with Paddles, Logic 7, Comfort Seats, NAV, Sport Package, PDC, Xenons, Sirius, Trinity 12W LED Angel Eyes, RPi GT Exhaust, M rear spoiler, ACS Roof Spoiler, Tinted Tail Lights, Bimmian Carbon Fiber Pillar Trim, Bimmian Shadow 550i emblem, RPi Scoop, E60 Forum Cling, Mtec bulbs in fog lights, Mtec 2W LED for License Plate Light Bulbs, K&N Filter, Bimmian LED Smoked Side Markers, Blackout roundels, Carbon Fiber Kidney Grills.
Retired Rides - 1989 325i convertible, 1995 M3, 2002 X5, 2005 545i, 2008 X5 (Lemon)
You will not hear it, but you WILL feel it! While you're at it, remove the charcoal filter too for another slight increase in sound and performance! 
While you're at it, remove the charcoal filter too for another slight increase in sound and performance!
10-03-2009, 12:24 PM
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My Ride: F13 M6
+1 for more of a feel. some customers have reported back about no sound change (personally I dont hear any change as well in general), and some have reported of hearing more air flow. no doubt though that the gains are there 