RDSport Quad Exhaust - sound changed
04-02-2007, 12:09 PM
#11
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Originally Posted by nicke60gre' post='409701' date='Apr 2 2007, 09:48 PM
Thanks Alex
It will affect 11% ..lower top speed as well
It will affect 11% ..lower top speed as well
Not correct, nick : now the sixth gear is 32x kmh, with -11% 296 . With new map with rev limiter at 6800 over 300 kmh .
The only problem will be +300 rpm at 145 kmh in sixth gear . Only a bit less comfortable, but I can reduce the cruising speed from 145 to 140 kmh .
04-02-2007, 09:41 PM
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My Ride: 2004 545iA - Built date 09/03, Sport Package, Alpine White III, Grey Interior, Cold Weather Package, PDC, Rear Electric Sunshades, Comfort Seats, Logic 7, Chromed BMW Style 124 18x8, 18x9 Wheels, M-Tech Aero Kit, Rear Trunk Decklid Spoiler, Tinted Windows, Valentine One
Modifications: RDSport Quad Exhaust, 20x8.5 and 20x11 HRE 943R, Vorsteiner CF Decklid, Dinan CAI
Originally Posted by AlexFW' post='409686' date='Apr 2 2007, 02:13 PM
Check my signature .
In next days I will install a black painted grill in the bumper hole .
In next days I will install a black painted grill in the bumper hole .
I am doing something very similar as well but ran out of time on Saturaday.
04-02-2007, 09:48 PM
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My Ride: 2004 545iA - Built date 09/03, Sport Package, Alpine White III, Grey Interior, Cold Weather Package, PDC, Rear Electric Sunshades, Comfort Seats, Logic 7, Chromed BMW Style 124 18x8, 18x9 Wheels, M-Tech Aero Kit, Rear Trunk Decklid Spoiler, Tinted Windows, Valentine One
Modifications: RDSport Quad Exhaust, 20x8.5 and 20x11 HRE 943R, Vorsteiner CF Decklid, Dinan CAI
Originally Posted by ats77' post='409685' date='Apr 2 2007, 02:10 PM
more layer of pipes is acting like a sound filtration that is why if you keep o.e RD then the sound is the same as before
Interestingly, my low end torque appears incredible! At full open throttle, you can hear it loud and clear.
04-02-2007, 10:59 PM
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Originally Posted by remuse' post='409805' date='Apr 3 2007, 07:48 AM
Good point. I re-measured the stainless steel pipes that they used and it appears theirs are abit larger may be about 1/2" larger. At any rate, I am going back to get them adjusted.
Interestingly, my low end torque appears incredible! At full open throttle, you can hear it loud and clear.
Interestingly, my low end torque appears incredible! At full open throttle, you can hear it loud and clear.
04-03-2007, 05:55 AM
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My Ride: 2004 545iA - Built date 09/03, Sport Package, Alpine White III, Grey Interior, Cold Weather Package, PDC, Rear Electric Sunshades, Comfort Seats, Logic 7, Chromed BMW Style 124 18x8, 18x9 Wheels, M-Tech Aero Kit, Rear Trunk Decklid Spoiler, Tinted Windows, Valentine One
Modifications: RDSport Quad Exhaust, 20x8.5 and 20x11 HRE 943R, Vorsteiner CF Decklid, Dinan CAI
Originally Posted by ats77' post='409819' date='Apr 3 2007, 01:59 AM
got a better idea, ask them if you have also a so called center pipe? If not ask them to do one for custom, and it will sound like a small Emmy
I actually have an x-pipe already before the two resonators. The x-pipe came with the RDSport quads. My muffler shop is recommending that I remove the two resonators since I already have the x-pipe. He also said my low end torque should not be affected due to the present of x-pipe. So I will see on Sat.
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