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5-Series (E12,E28, E34, E39, E60) Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)

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Old 05-22-2004, 03:22 PM   #1 (permalink)
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I plan on buying a complete triflow exhaust system from bavauto.com, as it is the cheapest and haven't heard anything bad about it. I went to e34.net or whatever, and i am convinced they are all retards. -3-0 hp gain on things that work on every other car in existence just seems stupid to me. And I put in my cone filter, and i regret their advice to put a K&N in the stock box. I want to know if any of you have exhausts on your e34's, and what kind of power gain you achieved.
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Old 05-22-2004, 07:36 PM   #2 (permalink)
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Hey, you're the second person to ask for advise on a tri-flow muffler. I was the first and didn't get any input. So I'll try to give you my opinion on an E39 body.

Anyway, I installed the muffler, single tip, on a '97 540i. I'm not sure on how much horse power I achived but I like the way it sounds and it's lighter than the stock. The stock is a dual muffler, you get the idea, it weights a ton... The car feels faster but must be me... I like it anyway!!!

On a newsletter from Bavauto, they compared 3 mufflers, the scorpio, the remus and the BB tri flow. According to their test, on a '99 323i, they achieved 10-15 horse power gain @4500-6000 rpm and 25lbft of torque @ 2000-4500. They included a chart.. Go to Bavauto.com/projectcar.

I hope this little info helps

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Old 05-23-2004, 10:44 PM   #3 (permalink)
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Ya, i got that same newsletter. And BTW, this board receives a HUGE n when it comes to input on questions. I am dissapointed. One response in like 4-5 days. BOOO
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Old 05-24-2004, 12:58 PM   #4 (permalink)
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if i knew, i would have helped right away
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Old 05-24-2004, 01:18 PM   #5 (permalink)
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Oh well, can't make everybody happy!

Thanks, CiscoKid...

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Old 05-24-2004, 01:34 PM   #6 (permalink)
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Originally posted by Stuka@May 24 2004, 12:24 AM
And BTW, this board receives a HUGE n when it comes to input on questions. I am dissapointed. One response in like 4-5 days. BOOO
If you would have checked the FAQ forum under Upgrades and Performance you would have seen a post on exhausts post. Within that post is a reply (by me) on 5/21/04 that has a link to an exhaust system test that covers 10 systems including Tri-flo.

Here's the link: http://www.bmw-forums.com/forum/topic6652.html
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Old 05-24-2004, 02:25 PM   #7 (permalink)
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The Tri-Flo exhaust is considered the deepest toned "loudest" exhaust system... On the e36 the sound is louder then anyother company.
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Old 05-24-2004, 05:28 PM   #8 (permalink)
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AHhhhhh, I see the light now. I have to insult the integrity of the board to get replies. Hmmm. lets see.... which smiley is suitable to end this post.... Hmmmm.... ah here we go! B)
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