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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 02-03-2012, 04:11 PM   #21
mkodama
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Quote:
Originally Posted by murph1379 View Post
100 cell race cats will help, without hurting power much, and without too much weight.
100 cell race cats are absurdly expensive to use just for reducing sound. Not to mention illegal for road use in many areas.
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Old 02-03-2012, 04:22 PM   #22
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Originally Posted by mkodama View Post
Who makes the quietest, low-restriction mufflers, with top notch quality in universal sizes? What's your preference and why?

First, I will say that I've had no experience with any of these mufflers; so I will not cast any supposition on how well they might work for you. They do look promising though.

Dynomax Valve Technology (VT), Play video
http://www.dynomax.com/mufflers.php?muffler=vt

Dynomax Super Turbo, Quietest
http://www.dynomax.com/mufflers.php?muffler=superturbo

Dynomax Muffler Sound Clips, you need good speakers to appreciate.
http://www.dynomax.com/soundsofdynomax.php


Good luck.
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Old 02-03-2012, 04:37 PM   #23
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I have a Vibrant stealth with both resonators on my 325. Not loud at all weighs at least 20lbs less than stock and its made of 100% T304 Stainless Steel. And frankly if something does happen to it a couple years down the road I'll pony up the 80 bucks to replace it.

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Old 02-03-2012, 04:56 PM   #24
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Originally Posted by RHLP3 View Post
I have a Vibrant stealth with both resonators on my 325. Not loud at all weighs at least 20lbs less than stock and its made of 100% T304 Stainless Steel. And frankly if something does happen to it a couple years down the road I'll pony up the 80 bucks to replace it.

Where'd you pick that up?

Perfect sound imo
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Old 02-03-2012, 05:14 PM   #25
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Quote:
Originally Posted by Rob43 View Post
First, I will say that I've had no experience with any of these mufflers; so I will not cast any supposition on how well they might work for you. They do look promising though.

Dynomax Valve Technology (VT), Play video
http://www.dynomax.com/mufflers.php?muffler=vt

Dynomax Super Turbo, Quietest
http://www.dynomax.com/mufflers.php?muffler=superturbo

Dynomax Muffler Sound Clips, you need good speakers to appreciate.
http://www.dynomax.com/soundsofdynomax.php


Good luck.
The Super Turbo looks interesting. Similar design to stock E46 rear mufflers.

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Old 02-04-2012, 09:23 AM   #26
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Originally Posted by mkodama View Post
Magnaflow are pretty ugly in terms of finish and the straight-through glasspack design isn't particularly great for quiet.
If you read my post you will see that I used a straight-thru as a resonator and the offset as the muffler to reduce the noice. Beauty is in the eye of the beholder especially when they are very low priced and most of the time no one can see them. Low priced sound reduction (sp?) is my goal.

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