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LotusTalk - The Lotus Cars Community - Intake and Exhausts http://www.lotustalk.com/forums All about the intake and exhausts en Fri, 20 Nov 2009 23:38:22 GMT vBulletin 60 http://www.lotustalk.com/forums/v2/images/misc/rss.jpg LotusTalk - The Lotus Cars Community - Intake and Exhausts http://www.lotustalk.com/forums Larini de-cat or Sport cat help http://www.lotustalk.com/forums/f154/larini-de-cat-sport-cat-help-80992/ Thu, 19 Nov 2009 05:52:38 GMT anyone know if this is the larini sports car or de-cat. sounds to low to be the sports cat. http://www.youtube.com/watch?v=MNiQHFC2dQo anyone know if this is the larini sports car or de-cat. sounds to low to be the sports cat.
http://www.youtube.com/watch?v=MNiQHFC2dQo ]]> Intake and Exhausts newguy http://www.lotustalk.com/forums/f154/larini-de-cat-sport-cat-help-80992/ <![CDATA[Does anyone run the Larani 8" w/diffuser exit?]]> http://www.lotustalk.com/forums/f154/does-anyone-run-larani-8-w-diffuser-exit-80900/ Tue, 17 Nov 2009 15:57:25 GMT I'm thinking of buying the Larani 8" with diffuser exit. For those of you who have this exhaust, how loud is it compared to stock? I want something as quiet as possible, but I'd like to reduce the back pressure in my factory SC car with the stock N/A exhaust. ]]> Intake and Exhausts marcinr http://www.lotustalk.com/forums/f154/does-anyone-run-larani-8-w-diffuser-exit-80900/ Bolt on exhaust tip silencers...any issues? http://www.lotustalk.com/forums/f154/bolt-exhaust-tip-silencers-any-issues-80889/ Tue, 17 Nov 2009 03:51:53 GMT i noticed these at autobachs. small 'mini exhausts' about 6" long that go into the tailpipe and are supposed to cut sound emissions a tad.

thought that could be useful for one circuit here that has strict sound restrictions.

any downside to using these things? how will there use effect the engine? ]]> Intake and Exhausts Drmike http://www.lotustalk.com/forums/f154/bolt-exhaust-tip-silencers-any-issues-80889/ Arqray Ti SingleTip + Larani De-Cat http://www.lotustalk.com/forums/f154/arqray-ti-singletip-larani-de-cat-80845/ Sun, 15 Nov 2009 22:40:25 GMT Just wanted to give my impressions of this set-up. I added in the Larani de-cat to my arqray single tip this weekend. The install was pretty straighforward. Basically drop the difusser and remove the the stock pipe and 02 sensors. I took the tips given on this forum about cutting the stock flange springs. I cut one spring by one coil and the other by about 1.5 coil. Install was much easier that way. Bolted it up and was ready to go.

I know sound is subjective but I thought it would be louder since from what I've read the single tip is one of the loudest mufflers out there. I don't see any reason to put in ear plugs while driving as some have recommended with the single tip and a de-cat. On cold start-up it did sound pretty loud in the garage but once it reached operating temp the sound mellowed out. Around town in the first cam I thought it was only mildly louder then before but at WOT the thing screams. I love it!:D It sounds very racy almost like a sport bike motorcycle but not quite as high pitched. Now, Im not coming from a quite Lexus or BMW so I like loud on sports cars as long as it not abnoxoius. I didnt find the smell bad either with the cat deleted but I have had a cat deleted car before so maybe I'm use to it or my sense of smell is bad.

If you like the sound of a race car without being over the top I would recommend it. On the other hand if find the stock exhaust to be a bit loud then stay away. ]]> Intake and Exhausts AW Elise http://www.lotustalk.com/forums/f154/arqray-ti-singletip-larani-de-cat-80845/ Larini sport cat question http://www.lotustalk.com/forums/f154/larini-sport-cat-question-80629/ Sun, 08 Nov 2009 22:24:03 GMT I have the Larini cat-back with the stock cat and I'm very interested in the Larini (highflow) sport-cat.

For those of with this cat, do you feel that it's worth the upgrade? Does it often make the CEL light come on?

I've used the search engine, but haven't been able to find much recent or specific information the Sport Cat. Thanks in advance for any insight.. ]]> Intake and Exhausts Andy 98RT10 http://www.lotustalk.com/forums/f154/larini-sport-cat-question-80629/ 2Bular De-Cat pipe http://www.lotustalk.com/forums/f154/2bular-de-cat-pipe-80625/ Sun, 08 Nov 2009 19:07:06 GMT Can anyone tell me if it will work with stock headers and an Argray Ti single tip exhaust? Can anyone tell me if it will work with stock headers and an Argray Ti single tip exhaust? ]]> Intake and Exhausts AW Elise http://www.lotustalk.com/forums/f154/2bular-de-cat-pipe-80625/ Do Larini Cat/De-cat needs to be coated/wrapped? http://www.lotustalk.com/forums/f154/do-larini-cat-de-cat-needs-coated-wrapped-80460/ Tue, 03 Nov 2009 08:12:38 GMT Yes the OP is the concern, anyone?

I would like to coat it but can't seem to find a good coater around my area ]]> Intake and Exhausts BadtZ http://www.lotustalk.com/forums/f154/do-larini-cat-de-cat-needs-coated-wrapped-80460/ Anyone with De-Cat and stock exhaust? http://www.lotustalk.com/forums/f154/anyone-de-cat-stock-exhaust-80456/ Tue, 03 Nov 2009 04:27:27 GMT I have an NA 06 Elise and I thinking of a Larini de-cat but I read an old thread that someone tried a decat and it damaged their stock muffler? I dont see why a decat would damage a muffler.:shrug: anyone experience this? Also, I wanted to know your input based on sound vs stock. did it get alot louder? Im thinking a decat + Stock will be quiter than with aftermarket exhaust. did it add any drone in the cabin? Did you feel any power gains/loss anywhere in the powerband? thanks I have an NA 06 Elise and I thinking of a Larini de-cat but I read an old thread that someone tried a decat and it damaged their stock muffler? I dont see why a decat would damage a muffler.:shrug: anyone experience this?

Also,
I wanted to know your input based on sound vs stock.
did it get alot louder? Im thinking a decat + Stock will be quiter than with aftermarket exhaust.

did it add any drone in the cabin?

Did you feel any power gains/loss anywhere in the powerband?

thanks ]]> Intake and Exhausts Mad MaTTer http://www.lotustalk.com/forums/f154/anyone-de-cat-stock-exhaust-80456/ <![CDATA[6" 2bular exhaust review]]> http://www.lotustalk.com/forums/f154/6-2bular-exhaust-review-80449/ Tue, 03 Nov 2009 00:56:29 GMT Just got it installed and wanted to share some quick notes with all that's interested.

It's so much lighter and smaller vs the OEM! Also looks a heck a lot better! First thought was that the exhaust tip seems to stick out bit too far, but it only really looks bad from one angle, which I took a pic below. However, I'm sure I will be very happy with this "extended" tip when I am running the decat :D

Deep and Authoritative note right at start up; I'll follow up with how it sounds on the road when I take it out of the garage tomorrow. Now onto the photos; enjoy!

















]]> Intake and Exhausts Imolas54 http://www.lotustalk.com/forums/f154/6-2bular-exhaust-review-80449/ Suggestions for exhaust install in SE Michigan? http://www.lotustalk.com/forums/f154/suggestions-exhaust-install-se-michigan-80447/ Tue, 03 Nov 2009 00:09:59 GMT My Larini's coming tomorrow, just not sure where I should go to have it put on. I'm not very mechanically inclined, so I'd rather not install it myself.

Would Auto Europe do it? Is there another shop that forum members have had success with around the Ann Arbor area?

Not sure if I should just take the Lotus to Muffler Man... ]]> Intake and Exhausts Andy 98RT10 http://www.lotustalk.com/forums/f154/suggestions-exhaust-install-se-michigan-80447/ Want Stage II Exhaust!! Any Suggestions? http://www.lotustalk.com/forums/f154/want-stage-ii-exhaust-any-suggestions-80425/ Mon, 02 Nov 2009 14:54:04 GMT I just got my Elise and I love the sound it makes, but I'm looking for a more gutteral noise, something low tone but loud! Any suggestions? :cool: ]]> Intake and Exhausts KochinoPride http://www.lotustalk.com/forums/f154/want-stage-ii-exhaust-any-suggestions-80425/ Help on removing stock exhaust manifold http://www.lotustalk.com/forums/f154/help-removing-stock-exhaust-manifold-80414/ Mon, 02 Nov 2009 02:32:01 GMT I'm looking for tips on removing the stock exhaust manifold on a 2008 Exige 240S.

I just started but I think it's going to be difficult.

Thanks for any tips. ]]> Intake and Exhausts caboydman http://www.lotustalk.com/forums/f154/help-removing-stock-exhaust-manifold-80414/ Exhaust piping diameter and muffler length http://www.lotustalk.com/forums/f154/exhaust-piping-diameter-muffler-length-80411/ Sun, 01 Nov 2009 18:45:00 GMT Does anybody know the piping diameter from the cat converter and the length of the stock muffler body off hand? TIA Does anybody know the piping diameter from the cat converter and the length of the stock muffler body off hand?

TIA ]]> Intake and Exhausts fast+forward http://www.lotustalk.com/forums/f154/exhaust-piping-diameter-muffler-length-80411/ <![CDATA[Pictures of 6"2bular GT3]]> http://www.lotustalk.com/forums/f154/pictures-6-2bular-gt3-80328/ Thu, 29 Oct 2009 18:00:56 GMT Hello.

Does anyone have some pics of the 6" GT3 exhaust with rear panel eliminator kit?

Thx ]]> Intake and Exhausts onthebeach http://www.lotustalk.com/forums/f154/pictures-6-2bular-gt3-80328/ BOE Racing exhaust now available from Blackwatch Racing http://www.lotustalk.com/forums/f154/boe-racing-exhaust-now-available-blackwatch-racing-80298/ Wed, 28 Oct 2009 20:51:58 GMT Beyond Original Equipment(BOE) Fabrication and Blackwatch Racing introduce the first true racing exhaust for the Lotus Elise and Exige (And you can live with it every day!)

Design:The dimensions were tested extensively with many different combinations of silencer diameter, core diameter, length, and packing material consistency to get great power, great sound, and kill the annoying drone present in so many exhausts including the factory and stage II systems.

Construction:
All 304 Stainless construction. Mandrel bent exit pipe and 100% TIG welded. 2.5" straight-through design reduces back pressure to support high power applications. These exhausts have been tested on cars with 320HP both on and off the race track!

Composition and History:
These systems are designed specifically for the Lotus Elise/Exige platform by BOE and Coast Fabrication working in concert. Coast Fab is the culmination of the legendary Dan Gurney race team (who coincidentally was a winning Lotus team from the 60’s).
More recently, these mufflers were on the Brumos car that won Daytona 24 hour this year and the winning Sun Trust car in 2005 of the prototype cars. The only modern podium car they're not on is the Ganassi car, as they have their own exhaust. Just about everyone else uses Coast. They're THAT GOOD. You'll find pics of these mufflers glowing red hot and they'll stay that way for the whole race. The same muffler will often get used for 3, 4, or 5 races. Most track day enthusiasts don't come even close to working the exhaust that hard in years worth of use...

Current exhausts on the market all use fiberglass packing and most are NOT rebuildable. Fiberglass will simply burn up and blow-out over time with the ultra short exhaust tracts of the Elise/Exige, a very short time if you track your car! You’re then left with a loud exhaust that actually robs power and isn’t rebuildable!
In the “Quarter-Stick” we use 100% stainless-steel packing, which is far more heat resistant and much longer lasting than fiberglass. In the quieter “Silent Touch” version we use a stainless/fiberglass hybrid that provides much higher heat tolerance than pure fiberglass, but maintains a very light weight. Both are rebuildable.

Mounting:Mounted using BOE’s proprietary hollow stainless steel mounting rod system. This rod mounts in the stock exhaust hangers. Through several trials, we've arrived at just the right amount of flex (compared to other rigid systems on the market), which allows the exhaust to move, eliminating the stress cracking that has plagued other exhausts. Additionally, there are provisions in the mounting system to reduce the chances of the exhaust “walking” to the passenger side of the vehicle—another problem many other systems are dealing with today. The system is complete with 2 stainless T-bolt clamps for the strongest connection to the factory U-bend and the attachment of the tip. A lightweight, angle cut exhaust tip is provided for both good looks and further sound attenuation. With the T-bolt clamp, not only can the angle of the tip be fine-tuned, but a different tip could be attached for different looks or directing sound away from those pesky sound stations!

Rebuildable:
Unlike any other Lotus exhaust on the market, The Silent Touch and Quarter-Stick are both rebuildable. After a couple of seasons of hard racing, you can undo the end cap and rebuild the exhaust with an inexpensive rebuild kit.

Weight:
Critical to any racer, especially the Lotus owner. These are the lightest exhausts on the market for the Lotus: Including all the clamps, mounting rod, tip and silencer, The Quarter-Stick weighs in at just over 8lbs! The silent touch only a bit over 11lbs!

Sound:Now we get to the best part! These exhausts were extensively tested for great sound as well as power production.

Silent Touch:
Off-cam it has a deeper, richer sound than stock and about the same volume. No drone. On-cam a bit louder than stock, more aggressive, but deeper, crisper, and with no drone. Very liveable on a day-to-day basis. Customers tell us its about a loud as their old 8" exhaust, but deeper tone.

Quarter-Stick(As in "quarter stick" of dynamite):
No drone and moderate volume at idle. Several folks have commented it is quieter than stage 2 around town(due to lack of drone) Aggressive, but not raspy off-CAM. On-CAM description best taken from bystanders: "Sounds like a Formula 1 car!", "Crisp and not raspy", and our favorite: "Bad-Ass!!!!"

Currently both exhaust are a "high exit" which require removing part of the heat shielding and either trimming or removing one of the rear side panels. We recommend the Von Hep license plate bracket that replaces the rear panel.

Prices for QuarterStick and the Silent Touch are $645 and $695 respectively.

Lotus Exhaust - Blackwatch Racing
Attached Images
   
]]> Intake and Exhausts fzust http://www.lotustalk.com/forums/f154/boe-racing-exhaust-now-available-blackwatch-racing-80298/