RoadsterSport RACE exhaust installed

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Mark Hirt
Posts: 48
Joined: Thu Apr 20, 2006 10:25 am
Location: Chicago, IL
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RoadsterSport RACE exhaust installed

Post by Mark Hirt »

Piece "O" cake to install and not as loud as one would think, it sounds wonderful :D

It's cold anr rainy here in Chicago so I may not drive the car till Sunday morning, I'll report back when I do.

note: I did have to modify my hitch a little. My hitch was one of the first built and CURT Mfg has since changed the design a bit. Current spec hitches will clear without issues, I removed less then an inch of material
[url=http://home.comcast.net/~mark.hirt/]Mark Hirt[/url]
2007 MX-5 MS-R / Dalan Hitch / Koni DA's / RoadsterSport RACE Muffler
Bowman Race Kart - [url=http://www.chicagoindoorracing.com/]rented[/url]
Brian
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Post by Brian »

Thanks for the report Mark, let us know what you think on Sunday. I think you were the first customer to take delivery....
Brian Goodwin
Good-Win Racing
www.good-win-racing.com
Mark Hirt
Posts: 48
Joined: Thu Apr 20, 2006 10:25 am
Location: Chicago, IL
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Post by Mark Hirt »

I will.

It may stop raining enough to even take it out Friday afternoon :D

For those that have the first models of the DaLan/CURT hitch this is how much I cut off (I could have cut less)

Image
[url=http://home.comcast.net/~mark.hirt/]Mark Hirt[/url]
2007 MX-5 MS-R / Dalan Hitch / Koni DA's / RoadsterSport RACE Muffler
Bowman Race Kart - [url=http://www.chicagoindoorracing.com/]rented[/url]
Mark Hirt
Posts: 48
Joined: Thu Apr 20, 2006 10:25 am
Location: Chicago, IL
Contact:

RoadsterSport RACE - Sound Report

Post by Mark Hirt »

Not a lot of miles on the pipe but heres what I think so far

At start up: Kind of loud, very deep tone. After the engine and pipe warm a bit it outside the car it quiets down to quieter the RoadsterSport DUELS. Weird.

Top up in City driving: At a light there is a nice deep tone, not really a rumble. When accelerating the noise increases not by as much as you would think. My theory is that as the revs rise air moves out the system faster making less noise.

Top up Highway driving: Cruising at 60 to 80 with no load on the motor it's very quiet, almost too quiet, the DUELS are louder. unlike the DUELS there is NO drone on throttle lift, my theory here is the can on the DUELS traps the exhaust gas causing the rumble.

Top down autocross: Got me I'm too busy driving to really notice but ErikV told me it sounds nice.

Top down in City driving: Pretty much the same as Top up in City driving, maybe a little less noise..

Bottom line.... Great exhaust and other then the fact there is only one tip looks stock.

note: The Baffle should arrive sometime this week, I will let ya know how it works. If it works as I expect it will be in the pipe when I'm not autocrossing (or going to and autocross).
[url=http://home.comcast.net/~mark.hirt/]Mark Hirt[/url]
2007 MX-5 MS-R / Dalan Hitch / Koni DA's / RoadsterSport RACE Muffler
Bowman Race Kart - [url=http://www.chicagoindoorracing.com/]rented[/url]
Mark Hirt
Posts: 48
Joined: Thu Apr 20, 2006 10:25 am
Location: Chicago, IL
Contact:

Post by Mark Hirt »

Update - Got my Baffle about a week ago. It didn't seem to make a big difference right away but as the glass pack "dirtys up" it gets better.

I did get a chance to run Saturday with the top down, nice deep growl, accelerate hard and it gets nice an loud, perfect. :D
[url=http://home.comcast.net/~mark.hirt/]Mark Hirt[/url]
2007 MX-5 MS-R / Dalan Hitch / Koni DA's / RoadsterSport RACE Muffler
Bowman Race Kart - [url=http://www.chicagoindoorracing.com/]rented[/url]
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