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04-10-2009, 08:58 PM
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#1 (permalink) |
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v My Cup Holder v
Join Date: Dec 2008
Location: Darkside of the Moon
Posts: 51
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De-Cat Question
I have an 07 Exige S with the Larini 'S' Clubsport exhaust and I want to de-cat it as well. Which one should I go with the Larini De-Cat Pipe or the Larini Silenced De-Cat Pipe..?
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04-10-2009, 09:03 PM
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#2 (permalink) |
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Lotus/TRD Geek
Join Date: Aug 2006
Location: Redmond WA
Posts: 623
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SILENCED DE CAT if you value your sanity and ever wish to drive it on the street again. While it doesn't make it much less bad but least not so loud. But good thing with just the straight pipe is fire balls. Depending on the rpms/gas you use you'll be able to shoot yellow, blue and sometimes white fireballs.
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Kids in the Back seat causes Accidents Accidents in the Back Seat causes Kids Moral Stick with a Two Seater |
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04-10-2009, 09:15 PM
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#3 (permalink) |
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I <3 chicken, I <3 liver
Join Date: Dec 2003
Location: Land of da 1000 Oaks, CA
Posts: 15,053
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What diameter is your clubsport? If you have 8" just get normal decat, for example.
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** save ~10 lbs gain 1 hp ** EQ: Y=(190*X) / (1984-X) where Y is (HP) and X is (lbs) '07 EXIGE S ** MY CAR ** VIDEOS!  '08 ACURA TSX 6-speed http://www.makeNYNYagain.com |
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04-10-2009, 10:25 PM
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#4 (permalink) |
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AKA XHILR8N!
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I have the 'straight' de-cat with a Topspeed exhaust. I really like the sound, but have been black flagged for exceeding noise level at Road Atlanta on Sunday morning with PCA.
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Simplicity is the ultimate sophistication. Leonardo Da Vinci 2005 Elise LRG, Trim Shop interior, full cage, Cup wheels, other stuff. 2007 Toyota Tundra (about 10 cup holders) 2004 BMW X3 (4 small cup holders) 1980 Rover SD1 |
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04-11-2009, 08:11 AM
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#6 (permalink) |
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the designer
Join Date: Nov 2005
Location: Ohio
Posts: 767
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I thought a de cat didn't really do anything except for sound but in combo with header did as you can retune for more power. Is that right?
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2008 Exige S 240 For Sale: 2005 stock shifter console and change holder. PM if your interested. |
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04-11-2009, 08:41 AM
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#7 (permalink) |
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I drank what?!?
Join Date: May 2005
Location: Tampa, FL
Posts: 4,212
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I had the Larini straight de-cat with a Stage II and it was loud (like 107 dBA in-car at WOT).
Honestly, it was about a 3 dB difference from when the cat was on. However, if the track you run on has draconian noise restrictions, I'd go with the silenced one - although I can't attest to the difference. |
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04-11-2009, 09:09 AM
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#8 (permalink) |
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I <3 chicken, I <3 liver
Join Date: Dec 2003
Location: Land of da 1000 Oaks, CA
Posts: 15,053
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I fitted my decat recently and it didn't really increase in loudness. You can gain about 10hp with tuning, not to mention better throttle response and lower heat.
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** save ~10 lbs gain 1 hp ** EQ: Y=(190*X) / (1984-X) where Y is (HP) and X is (lbs) '07 EXIGE S ** MY CAR ** VIDEOS! '08 ACURA TSX 6-speed http://www.makeNYNYagain.com |
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04-11-2009, 10:22 AM
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#10 (permalink) |
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Race lines on the mind
Join Date: Apr 2008
Location: Northwest Florida
Posts: 1,085
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Go turbo and you can run a short exhaust and a decat no silencer all you want =p
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2003 Honda S2000 - Suzuka Blue 2005 Magnetic Blue Elise Forcefed 275 turbo - Sold 05/20/09 |
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04-11-2009, 10:54 AM
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#12 (permalink) | |
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I drank what?!?
Join Date: May 2005
Location: Tampa, FL
Posts: 4,212
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Quote:
BTW, WTF is up with the having to wait 30 seconds between posts? GMAFB. |
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04-11-2009, 02:43 PM
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#14 (permalink) | |
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I <3 chicken, I <3 liver
Join Date: Dec 2003
Location: Land of da 1000 Oaks, CA
Posts: 15,053
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only time I noticed the smell is when I was outside of the car when it was started. No smell noticed yet when I was driving around and stopped at lights.
Quote:
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** save ~10 lbs gain 1 hp ** EQ: Y=(190*X) / (1984-X) where Y is (HP) and X is (lbs) '07 EXIGE S ** MY CAR ** VIDEOS! '08 ACURA TSX 6-speed http://www.makeNYNYagain.com |
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04-11-2009, 03:35 PM
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#15 (permalink) |
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AKA XHILR8N!
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The "raw gas" smell reminded my of youth, where I'd spend time in my Dad's garage gratefully inhaling the smell of MOPAR V8s back before environmental controls.
Uh, that might explain some things......
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Simplicity is the ultimate sophistication. Leonardo Da Vinci 2005 Elise LRG, Trim Shop interior, full cage, Cup wheels, other stuff. 2007 Toyota Tundra (about 10 cup holders) 2004 BMW X3 (4 small cup holders) 1980 Rover SD1 |
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07-28-2009, 03:40 PM
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#16 (permalink) |
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Registered User
Join Date: Jul 2009
Location: St. Louis
Posts: 2
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De-cat sound and smell
I have a de-cat to an arqray dual chamber. It sounds mean but, it does smell a bit. My CEL came on after 100 miles. I'm in the process of sending it to Charlie to a reflash --- sounds like he's the man when it comes to Loti !!
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