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REVi vs. Flywheel vs. MS Exhaust

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Old 01-08-2006, 02:36 PM
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Originally Posted by Avalonstar
Yeah, that's true. I was looking at the short shifter... how easy is that to install? As easy to install as an exhaust? How about the high flow cat? Seems like I'd have to raise the car to install that one. But thanks for the opinion 4yts.
The short shifter is a half hour install. All done from the drivers seat.

The high flow cat isn't too bad but it is a lot easier on a lift. It has one rubber hanger where the exhaust has four of them. Much easier to do than a catback.

The Revi makes the car idle very smooth. I have helped install this and I have the Ram air fitted to the stock box. I would like to get the Revi though. Just look at it as a possible waste since I am planning on Supercharging.
Old 01-08-2006, 03:22 PM
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Awesome, I'm definitely going to have to look at the short shifter then. But that still leaves room for the intake or flywheel or exhaust. I would want to get the flywheel in before I go dragging, so it's still in my mind. I might just have to go for the REVi.
Old 01-08-2006, 03:32 PM
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Originally Posted by Fanman
Make sure it is a Mazdaspeed authorized dealer, and they will honor the warranty even if you put MS parts on there. Many Mazda dealers won't. Some dealerships make you buy the MS parts there (more expensive) if you want them to honor the warranty.


if true that would be in violation of MNAO policy, sounds like more of a BS scare tactic to me
Old 01-08-2006, 05:24 PM
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Originally Posted by Avalonstar
Yeah, the service manager at my dealer told me the same thing, that the light flywheel is best. However, I did some research and found out that the MS isn't much lighter than the stock one compared to say - the RB flywheel... am I seeing things?
weight isn't the thing thats important about a flywheel - its rotational inertia

... i did a rough calc a year or two ago and despite the MS being heavier then RB's, the MS has alot of mass removed from the outer part of the flywheel because of the holes - so much that I believe it came out almost identical in inertia to RB's
Old 01-08-2006, 06:21 PM
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Awesome, thank you for that information r0t0r.
Old 01-08-2006, 06:45 PM
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What about the act chromoly flywheel? Is this a good flywheel to get over the rb and ms units?
Old 01-08-2006, 08:02 PM
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i just wanted to thank you guys for this discussion. very informative for a newbie to this car.
Old 01-08-2006, 10:37 PM
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I agree... but we all haven't come to a definitive answer yet.
Old 01-09-2006, 07:38 AM
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Can anyone tell me who makes the Mazdaspeed Flywheel for the 8??? I am looking into the one that is coming out for the 6S and I wanted some company background... I know Mazdaspeed always sublets their engineering...

Thanks...
Old 01-09-2006, 03:02 PM
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Originally Posted by Avalonstar
I agree... but we all haven't come to a definitive answer yet.

if you want since you live in sj you can come test drive my 8 and see if it's a worthwhile investment for you. Shoot me a pm.
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