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#91
03-10-2011, 11:38 AM
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called B%b theyr have the exhaust on sale for $1200 and some change but i really dont want to spend that kind of money Quote:
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#92
03-10-2011, 01:40 PM
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Imola trust me you will love it. it will be deeper but still drivable every day. now I have "supersport" exhaust and it is louder and deeper but with time is really annoying me and I am thinking of going back to stock exhaust and x pipe. especially when I drive long routes.
PS all others worried about fuel economy on V8 engine powered SUV...you are in wroooooong movie...sell your bimmer and get your self some girly prius or vw. No hard feelings...it is for your own good 
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My bimmers 
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#93
03-10-2011, 03:56 PM
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Quote:
 ...however, what I would like to understand is the "true cost" for the improved exhaust sound so that I can determine whether the setup is right for me. If it is going to cost 2+ mpg, then it may not be worth it, especially if there is no other performance benefit.
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 2010 X5M Active Autowerks tune 22" BBS SV in Titanium Gunmetal Black grills
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#94
03-10-2011, 04:25 PM
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honestly I did not noticed any change in fuel consumption. however if there is higher consumption then it must be improvement in HP too. which might be possible since engine will breath easier since there is no more silencer in the way so it should bring few HP. People who have noticed worst gas mileage probable have also drove it harder to hear and enjoy new sound and that might caused higher consumption
Bottom line there is no cheaper way to get better sound than stock. There are better sounds and exhaust on the market but price is high. Also if you don't want very loud thing for daily drive then this is better than any other solution.
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My bimmers
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#95
03-10-2011, 04:38 PM
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Like I mentioned on my previous rants, '03 X5 4.6is will not have any sound difference whether you remove the resonator or not. I don't know why BMW installed it in the first place. I replaced the resonator with a Magnaflow X-pipe and it still sounded the same. There was no full throttle sound that I expected. As Weasel mentioned before, 4.6is has different timing with the 4.4, 3.0, and the 4.8's. Maybe because it is built to beat up on those ML AMG's! I'm looking into straight piping the two mufflers though. Let's see what happens...
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2003 BMW X5 4.6is Black on black with black wheels, Black grille, Smoked tails, X-pipe 
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#96
03-10-2011, 08:35 PM
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Before I or anyone else on this site thought of using x-pipe I replaced the 26" long resonator with two 12" long resonators... It sounds a little off from outside the vehicle due to not having any cross flow equalization, but sounds a little louder in the truck when I get on it. What I want to do and plan on doing sometime in the future is put a 2 in 2 out magnaflow in the center where the resonator was (which would offer cross equalization as well as sound modification) and putting my 12" bullet resonators in place of the current mufflers (to ensure the rasp is at a tolerable level without hindering flow), and some nice rolled lip dual tips on each side. I think that combo will give the sound I'm personally looking for without being too loud or obnoxious, and I might try doing it myself since I got pretty decent with the welder and pipe bender...
And I have yet to see anyone try a dual inlet dual outlet exhaust in place of the resonator with straight pipes after.... so I'm really curious as to how this will sound. I keep thinking of every American V8 SUV/truck I've owned had the muffler (usually flowmaster) center mounted and they all sounded awesome. I've found magnaflow and flowmaster products that will fit the bill and won't break the bank, just gotta have the extra time/money to get around to it.
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"When you do things right, people won't be sure you've done anything at all" (Bender, futurama) You make something idiotproof, they'll make a better idiot You think professional is expensive, just wait until you pay for amateur. Never let your sense of morals prevent you from doing what is right. Examine what is said, not who speaks. X5 pics RIP 4.6is..... 2003 4.6is 
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#97
03-10-2011, 10:15 PM
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Just put the X pipe on.... torque is back!!!!
It is A LOT smoother and quiter then the straight pipe but it alot sounds a lot better Overall I like it.... I would rather not have it as loud and have the torque and no popping
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#98
03-10-2011, 10:39 PM
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Told you so!
X pipe is always a great starting place for anyone wanting to do exhaust work.
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"When you do things right, people won't be sure you've done anything at all" (Bender, futurama) You make something idiotproof, they'll make a better idiot You think professional is expensive, just wait until you pay for amateur. Never let your sense of morals prevent you from doing what is right. Examine what is said, not who speaks. X5 pics RIP 4.6is..... 2003 4.6is
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#100
03-30-2011, 04:45 PM
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Hello
I think it is on this forum I have read that a X53.0D owner show us how to weld on the exhaust taile pipes tips, it was on a very nice white X5 I remember pics but dont manage to find the post. Do you know this message ? thanks
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