Quad System Monster. . . Continues
#1
Contributors
Thread Starter
Join Date: Aug 2005
Location: Houston, Texas
Posts: 2,114
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 2005 BMW 545i, Silver Grey, Sport Package, R. Shades, Cold Pkg, Sat. Rad., Prem. Sound.
Video and sound clip attached. Most of you are on the close with the straight pipes, but it's not exactly straight pipe (cherry bomb). The droning in the cabin is killing me at the slow acceleration speed, but above 2500 rpm, man, it's a beauty. It's the loud idle and slow acceleration sound that causes the most noise and droning inside the cabin.
I reduced the image to reduce the file size, but the sound has not been reduced. You'll hear idle sound and the sound at 2000 rpm. You'll have to turn on the speakers (make sure you got bass turned on) to hear the note. I'll record some more clips tomorrow. Got to put the kids to sleep now, but more when they are all asleep . . .
exhaust_s.mpeg
I reduced the image to reduce the file size, but the sound has not been reduced. You'll hear idle sound and the sound at 2000 rpm. You'll have to turn on the speakers (make sure you got bass turned on) to hear the note. I'll record some more clips tomorrow. Got to put the kids to sleep now, but more when they are all asleep . . .
exhaust_s.mpeg
#2
Contributors
Join Date: Nov 2006
Location: Los Angeles, CA
Posts: 2,903
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 2007 E60 530i
Color: Jet Black/Black Anthracite
STEP | Sport | Premium | NAV | Logic 7
EXTERIOR:
M-Tech Kit | M5 Mirrors, Trunk Finisher | Jet Black Kidney Surrounds | Madico Charcool Tint 54%, 35%
LIGHTING:
Euro-Headlights | Euro-LCI Tail Lights | AiB V3.0 | Solaris Invisi-bulbs | OEM LED Plate Lights
PERFORMANCE:
Porterfield R4-S Brake Pads | K&N Air Filter
WHEELS & SUSPENSION:
Work VS-XX 20x9, 20x10 | Toyo T1R 245/30/20, Michelin Pilot Sport A/S 295/25/20 | KW V2 Coilovers | Rogue Engineering 15mm Spacers
Sounds good! I watched the video before I read your post and was like... "why the hell is this video so damn small?!" And then I read your post, "ahhh... file size."
#4
Senior Members
Join Date: Sep 2007
Location: San Antonio, Tx
Posts: 1,241
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 2004 545i SMG
hate to say but that was some weak revving. guess the kids were in bed.
please tell us your setup and a new clip with at least revving to above 4000rpm
please tell us your setup and a new clip with at least revving to above 4000rpm
#5
Contributors
Thread Starter
Join Date: Aug 2005
Location: Houston, Texas
Posts: 2,114
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 2005 BMW 545i, Silver Grey, Sport Package, R. Shades, Cold Pkg, Sat. Rad., Prem. Sound.
alright, the kids are asleep . . . below is the setup.
1. Factory 2.25 dual pipes from headers to 2 factory resonators.
2. Removed third factory resonator box and replaced with magnaflow x-pipe
3. 2.25" dual pipe to the tail with 4" round muffler magnaflow (2.25" inlet) on each side
4. Had to knock the battery bxo corner in a little bit to fit the dual tips.
5. Then dual 3" tips stainless steel magnaflow with 2.25 inlets
POV coming from a guy who thinks sports/luxury sedan should be just that and not a sports car:
1. At idle, the sound is nice low toned rumble, but the volume is about 5 times that of stock at 750 rpm. Turn the AC off and the sound level drops near stock at 500 rpm. I prefer the stock decibel, but the sound of magnaflow rumbling is very nice.
2. If I shift at 1500 rpm, cabin droning is minimalized. If I slow accelerated (like most traffic), the cabin droning is unbearable at 1500 rpm to 2000 rpm. I can't even hear the radio. It's very loud inside (with windows open or close), and the exhaust note from the outside begins to sound more like a v8 ricer at about 2000-2500 rpm. Then at 3000 rpm, the sound becomes distinctive "racing" and COOL.
Basically, it sounds like a Hemi truck with mod exhaust at idle and slow acceleration, but at accelerations of 2500-3000 rpm, the sound is sweeeet and not loud and obnoxious.
On the freeway, 60-65 mph (2K rpm range), the cabin can get loud. But at 70 mph and beyond, it's exactly like stock until you give it some gas; the sweet exhaust notes to the ear.
I miss my stock exhaust already. except at 3000+ rpm, magnaflow rules.
Anybody with suggests on dramatically reducing the resonance (cabin droning)?
1. Factory 2.25 dual pipes from headers to 2 factory resonators.
2. Removed third factory resonator box and replaced with magnaflow x-pipe
3. 2.25" dual pipe to the tail with 4" round muffler magnaflow (2.25" inlet) on each side
4. Had to knock the battery bxo corner in a little bit to fit the dual tips.
5. Then dual 3" tips stainless steel magnaflow with 2.25 inlets
POV coming from a guy who thinks sports/luxury sedan should be just that and not a sports car:
1. At idle, the sound is nice low toned rumble, but the volume is about 5 times that of stock at 750 rpm. Turn the AC off and the sound level drops near stock at 500 rpm. I prefer the stock decibel, but the sound of magnaflow rumbling is very nice.
2. If I shift at 1500 rpm, cabin droning is minimalized. If I slow accelerated (like most traffic), the cabin droning is unbearable at 1500 rpm to 2000 rpm. I can't even hear the radio. It's very loud inside (with windows open or close), and the exhaust note from the outside begins to sound more like a v8 ricer at about 2000-2500 rpm. Then at 3000 rpm, the sound becomes distinctive "racing" and COOL.
Basically, it sounds like a Hemi truck with mod exhaust at idle and slow acceleration, but at accelerations of 2500-3000 rpm, the sound is sweeeet and not loud and obnoxious.
On the freeway, 60-65 mph (2K rpm range), the cabin can get loud. But at 70 mph and beyond, it's exactly like stock until you give it some gas; the sweet exhaust notes to the ear.
I miss my stock exhaust already. except at 3000+ rpm, magnaflow rules.
Anybody with suggests on dramatically reducing the resonance (cabin droning)?
#6
Senior Members
Join Date: Sep 2004
Location: New York, NY
Posts: 2,074
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: '05 545i - scheduled for ED pickup in Munich on 7/22!
so 2nd loudest non-M E60 huh?
interesting setup...
looking forward to additional clips of aggressive revving and driving.
interesting setup...
looking forward to additional clips of aggressive revving and driving.
#7
Contributors
Thread Starter
Join Date: Aug 2005
Location: Houston, Texas
Posts: 2,114
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 2005 BMW 545i, Silver Grey, Sport Package, R. Shades, Cold Pkg, Sat. Rad., Prem. Sound.
Originally Posted by jet190rs' post='494067' date='Nov 13 2007, 11:08 PM
so 2nd loudest non-M E60 huh?
interesting setup...
looking forward to additional clips of aggressive revving and driving.
interesting setup...
looking forward to additional clips of aggressive revving and driving.
#9
Contributors
Join Date: Apr 2005
Location: San Diego, CA
Posts: 7,363
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 2007 E63 AMG | Obsidian Black | Schwarzes Nappa | Black BirdEye Maple | Premium II Package | Electronic Trunk Closer | Parktronic
Engine: RPi/Powerchips custom ECU tune, RPi Ram Air Kit (BMC filter, scoops), RennTech Sport exhaust, secondary cats, charcoal and resonator delete, custom AAA x-pipe
Exterior: 50% side windows / 35% rear window Formula One Pinnacle Series | Flat AMG hood emblem
Suspension: Renntech Lowering Module
Wheels/Tires: Radenergie R10, Falken FK452 245/30/20, Yokohama ADVAN Sport 285/25/20
-----------------------------------------
2005 545i Sport SMG | Ti Grau | Schwarzes Dakota | Anthracite Maple | Logic 7 | Nav
Engine: Custom AFE CAI, Superchips ECU remap, Sprint Booster, RDSport Dual Exhaust Conversion with Quad Pipes and X-pipe, 3 resonators deleted, 90mm tips!
Exterior: M-Tech Aero kit | M5 Mirrors | M5 Rear Bumper | Trunk Lid Finisher | Vorsteiner decklid spoiler | 50% Formula One Pinnacle Tint
Suspension and Brakes: Bilstein PSS9 coilovers, JBT BBK: 16" cross-drilled rotors, 8 piston and 15" cross-drilled rotors, 4 piston
Wheels: VIP Modular VR 02 20x9F, 20x10R | Toyo T1R 245/30/20F, 285/25/20R
Lights: PIAA 4150K Xtreme White Plus fog lights, AIB v3
MOST IMPORTANT: Hardwired V1; =)
ED Date: 4/7/05, Re-delivery date: 5/21/05
Originally Posted by Bimmer32' post='494053' date='Nov 13 2007, 08:48 PM
Anybody with suggests on dramatically reducing the resonance (cabin droning)?
#10
Contributors
Thread Starter
Join Date: Aug 2005
Location: Houston, Texas
Posts: 2,114
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 2005 BMW 545i, Silver Grey, Sport Package, R. Shades, Cold Pkg, Sat. Rad., Prem. Sound.
Originally Posted by GQuK545i' post='494088' date='Nov 13 2007, 11:34 PM
Hey Bimmer32 i have the same setup and the same problem.
The only way i figured out to stop the droning was to turn up the knock.
The only way i figured out to stop the droning was to turn up the knock.