Comprehensive Larini 8 Inch vs Stock Exhaust Comparison (William Thomas Roadsters) - LotusTalk - The Lotus Cars Community
 
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Old 06-18-2010, 05:20 AM   #1 (permalink)
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Comprehensive Larini 8 Inch vs Stock Exhaust Comparison (William Thomas Roadsters)

The objective of this post is to document both the physical and acoustic difference between the Lotus Elise SC stock exhaust and the Larini 8 Inch (diffuser exit).

I would like to thank Bill Thomas (of William Thomas Roadsters near Frenchtown, NJ) for facilitating this exhaust comparison while implementing the exhaust replacement!
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Old 06-18-2010, 05:21 AM   #2 (permalink)
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Physical difference - pictures 1 to 5:

The pictures below illustrate the physical difference:
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Old 06-18-2010, 05:21 AM   #3 (permalink)
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Physical difference - pictures 6 to 10:

The pictures below illustrate the physical difference:
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Last edited by jpkeyzer; 06-18-2010 at 05:27 AM.
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Old 06-18-2010, 05:22 AM   #4 (permalink)
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Physical difference - pictures 11 to 15:

The pictures below illustrate the physical difference:
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Old 06-18-2010, 05:22 AM   #5 (permalink)
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Weight difference - 11lbs!

The pictures below document the weight difference:
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Old 06-18-2010, 05:23 AM   #6 (permalink)
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Baseline acoustics from stock exhaust:

The videos below provide the baseline acoustics with the Lotus Elise SC stock exhaust:

Lotus Elise SC - Stock Exhaust - 1 of 3:

Lotus Elise SC - Stock Exhaust - 2 of 3:

Lotus Elise SC - Stock Exhaust - 3 of 3:

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Old 06-18-2010, 05:23 AM   #7 (permalink)
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Larini upgraded acoustics!

The videos below provide the different acoustics with the Larini 8 Inch (diffuser exit) exhaust:

Lotus Elise SC - Larini 8 Inch Exhaust - 1 of 3:

Lotus Elise SC - Larini 8 Inch Exhaust - 2 of 3:

Lotus Elise SC - Larini 8 Inch Exhaust - 3 of 3:

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Old 06-18-2010, 05:37 AM   #8 (permalink)
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In conclusion:

It burps and pops beautifully - thank you Larini!
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Old 06-18-2010, 05:42 AM   #9 (permalink)
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Comprehensive indeed! Thank you for sharing your in-depth comparison. Multimedia yummyness

It's amazing the stock exhaust weighs that much. Changing it out is easy weight loss.
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Old 06-18-2010, 07:06 AM   #10 (permalink)
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+1 thanks. Finally someone who took the time to share some good comprehensive comparison. Wish i had this info on the larini SC sport. Great footage and pictures showing all angles to really get a good understanding of the dirrerences.
I always wonder why the seller of these products don't capture this kind of data and post on there sites. I think most buyers would be able to make a better purchase and not end up with somethign they really didn't want.

Maybe give a free or sell a muffler to a consumer at cost with the caviate of getting comparison footage that can be used on there website. I woudl definitly do it
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Old 06-18-2010, 11:37 AM   #11 (permalink)
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Quote:
Originally Posted by bman6074 View Post
+1 thanks. Finally someone who took the time to share some good comprehensive comparison. Wish i had this info on the larini SC sport. Great footage and pictures showing all angles to really get a good understanding of the dirrerences.
Thank you for the compliment - when I was looking to replace the stock exhaust, I remember wishing that someone had documented the physical and acoustic difference between these exhausts and so decided to do it myself once I had committed to the Larini 8 inch with diffuser exit!
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Old 06-18-2010, 01:18 PM   #12 (permalink)
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Great post thanks. I just installed the 8" yesterday at Sector111 and love it. It is plenty loud, but not obnoxious. I just adds the appropriate pops and burbles on gear shifts and backing off the throttle and when you put your foot in it, it sounds about as good as one can get out of a 4 cyl engine--much better than stock, but no where near the droning unpleasant stage 2 that I had on my original 05 Lotus.
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Old 06-18-2010, 05:41 PM   #13 (permalink)
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Great post. Thanks. PD
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Old 06-24-2010, 04:26 PM   #14 (permalink)
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Hey jpkeyzer,
Do you have in car footage? I am curious to hear the difference to SC sport i just installed.
thanks
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Old 06-24-2010, 04:33 PM   #15 (permalink)
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Its hard to tell, are you at WOT in those shots? I'd love to see some good db readings...
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Old 06-26-2010, 04:04 AM   #16 (permalink)
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Quote:
Originally Posted by bman6074 View Post
Hey jpkeyzer,
Do you have in car footage? I am curious to hear the difference to SC sport i just installed.
thanks
I unfortunately do not, but plan to to take some footage soon.
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Old 06-26-2010, 04:07 AM   #17 (permalink)
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Quote:
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Its hard to tell, are you at WOT in those shots? I'd love to see some good db readings...
I was not at WOT (wide open throttle?). I did try that but it was a little difficult to keep up with the passing vehicle and take decent video footage!
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Old 06-26-2010, 05:01 AM   #18 (permalink)
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Great post... I like the stock exhaust better though. Even though it's louder, the new exhaust makes the car sound too much like a Japanese sports compact.
I'd like to hear the exhaust note on ignition. I'm sure it sounds pretty good from inside though...

Last edited by squidward; 06-26-2010 at 05:48 AM.
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