Exclusive HKS Lotus Elise/Exige Exhaust System - LotusTalk

Jermaine@VF · 10-08-2009, 09:01 AM

Exclusive HKS Lotus Elise/Exige Exhaust System

HKS designed this exhaust with a few criteria in mind, killer looks with the rear fascia in place, improved exhaust tone with minimal highway drone and respectable horsepower gains within that criteria. Through the use of a properly sized tuning tube they were able to increase the volume of the exhaust without increasing the tendency to have drone while at highway speed. A brief explanation of this portion of the exhaust is to cancel out unwanted tones in specific frequency ranges. Think of it as mechanical noise cancellation. Even with this additional technology being applied to the exhaust system it is still 47% lighter than stock.

Noise Cancellation Chamber

Rear Picture Uninstalled

Rear Tips

Ultimately, this exhaust works! We had an independent test with a customer of ours who has a VF Stage 1 kit he gained 7 hp by just bolting the exhaust on the car, while retaining the factor catalytic converter. Impressive!

Dyno Plot

Exhaust Installed

MSRP: $1595 Special Pricing $875 Shipped

To place an order call 240-243-0193 or email Jermaine@visionfunction.com

Thanks,

Jermaine~

luxige · 10-08-2009, 11:34 AM

Any plans to have them develop a version with the exit above the diffuser?

Jermaine@VF · 10-08-2009, 11:41 AM

Quote:

Originally Posted by luxige

Any plans to have them develop a version with the exit above the diffuser?

I can see what I can do, they are pretty reluctant to makes these as it is. I wouldn't be surprised to see there go away after this batch.

MikeLeuz · 10-08-2009, 11:49 AM

Quote:

Originally Posted by Jermaine@VF

I can see what I can do, they are pretty reluctant to makes these as it is. I wouldn't be surprised to see there go away after this batch.

They look great - just curious though...

A) why were they reluctant to make these?
B) if they already invested the time/money to design these so well, why would they only make one batch?

Jermaine@VF · 10-08-2009, 11:52 AM

Quote:

Originally Posted by MikeLeuz

They look great - just curious though...

A) why were they reluctant to make these?
B) if they already invested the time/money to design these so well, why would they only make one batch?

It's all about sales volume. Figure it this way, if it sells well then continue with production and possibly development.

C'mon HKS Exhaust for everyone!

madden · 10-08-2009, 12:13 PM

ya no where near as many people are going to buy a through the diffuser stock looking setup, they should have came up with an above the diffuser exhaust first.

Jermaine@VF · 10-08-2009, 12:24 PM

Quote:

Originally Posted by madden

ya no where near as many people are going to buy a through the diffuser stock looking setup, they should have came up with an above the diffuser exhaust first.

With that said I still have a few customers who are not into the above the diffuser look. So this is still a great option for the more subtle Elise owner.

After all we are all a bit different, but we all love to

!

Jermaine

Jean · 10-08-2009, 12:40 PM

Quote:

Originally Posted by madden

ya no where near as many people are going to buy a through the diffuser stock looking setup, they should have came up with an above the diffuser exhaust first.

Yea, just take a look at Jim's 2bular exhaust, he will make whatever you want ... Especially for supercharged engine like the VF II . Great exhaust, great service !!

Bane · 10-08-2009, 12:48 PM

Sweet! That would look great with one of our headers

Moto44 · 10-08-2009, 02:56 PM

Sounds very interesting. Is there anything more you can tell us about the quality of the sound and how much louder we could expect it to be? Does it provide any sputters or backfires (in a good way)? Is it a meatier/rumblier sound than stock? Cancelling out drone is good, but does that mean it is considerably quieter than most of the other after market offerings?

I realize that it is nearly impossible to answer these questions with words - it needs to be experienced. But, I am seriously interested and without the benefit of hearing it in person, any additional info is much appreciated.

Also, I am planning to install your Vision Function supercharger/intercooler. Is there any reason a different exhaust would be a better fit for this combination?

Thanks,
Todd

Jermaine@VF · 10-08-2009, 03:14 PM

Quote:

Originally Posted by Moto44

Sounds very interesting. Is there anything more you can tell us about the quality of the sound and how much louder we could expect it to be? Does is provide any sputters or backfires (in a good way)? Is it a meatier/rumblier sound than stock? Cancelling out drone is good, but does that mean it is considerably quieter than most of the other after market offerings?

I realize that the it is nearly impossible to answer these questions with words - it needs to be experienced. But, I am seriously interested and without the benefit of hearing it in person, an additional info is much appreciated.

Also, I am planning to install your Vision Function supercharger/intercooler. Is there any reason a different exhaust would be a better fit for this combination?

Thanks,
Todd

Exhaust systems are really personal preference which is honestly why they have so many different models available. I will say the exhaust tone is very comparable to the Lotus Stage 2 muffler. My opinion is if you are a fan of the placement of the exhaust, the noise level will suit you perfectly.

As fas as exhaust combination's go I recommend going for the look that you like, then the sound, then the horsepower potential. Sometimes the noise isn't worth the exta 5-7 hp especially at the general power levels were are talking supercharged.

Moto44 · 10-08-2009, 03:25 PM

Thanks for the input, Jermaine.

Jermaine@VF · 10-12-2009, 07:47 AM

I should have a video up a little later on today.

Dragon · 10-12-2009, 08:15 AM

Errr... HKS has been making parts for the Elise for some time now...

HKS Japan Lotus Parts

HKS USA Lotus Parts

usurbrain · 10-12-2009, 08:25 AM

According to HKSUSA, the OD piping diameter is 50mm.... which is less than 2" :O

shay2nak · 10-13-2009, 09:29 PM

dyno plot is not showing

spf4000 · 10-13-2009, 10:21 PM

On the HKS site it says it's for the NA Exige/Elise.

Noizemaker · 10-13-2009, 10:29 PM

I have one of these, EVERYONE I know digs the sound of it. The piping does neck down from 2.5". Worried me at first, hasn't seemed to hurt me though. I'll upload a sound clip from a recent trackday, i already have a video on youtube. My tips are sliiightly different, but other than that, everything looks identical down to the HKS badge. I've been happy with it, i know it's tough to choose w/o soundclips though.

Unloaded:

YouTube - Garage: Laverty Project Elise- Exhaust!

Loaded:

YouTube - PGP Trackday 9/24/09: Part 2- The Sloppy

Jermaine@VF · 10-14-2009, 05:46 AM

Quote:

Originally Posted by Noizemaker

I have one of these, EVERYONE I know digs the sound of it. The piping does neck down from 2.5". Worried me at first, hasn't seemed to hurt me though. I'll upload a sound clip from a recent trackday, i already have a video on youtube. My tips are sliiightly different, but other than that, everything looks identical down to the HKS badge. I've been happy with it, i know it's tough to choose w/o soundclips though.

Unloaded:

YouTube - Garage: Laverty Project Elise- Exhaust!

Loaded:

YouTube - PGP Trackday 9/24/09: Part 2- The Sloppy

Cool Vids.

Also Dyno plot link fixed. At the time the exhaust was initially developed the NA car was the only thing they had. With that said, not a bad horsepower gain.

Jermaine@VF · 10-14-2009, 07:46 AM

Having Video probs..

VF Stage 1 & HKS Exhaust - Fly by

YouTube - Vision Function Stage 1 Lotus Elise with HKS Exhaust

Standing Start

YouTube - Vision Function Stage 1 Lotus Elise with HKS Exhaust

10-08-2009, 09:01 AM	#1 (permalink)
Jermaine@VF Crazy Car Guy Join Date: Apr 2008 Posts: 197	Exclusive HKS Lotus Elise/Exige Exhaust System Exclusive HKS Lotus Elise/Exige Exhaust System HKS designed this exhaust with a few criteria in mind, killer looks with the rear fascia in place, improved exhaust tone with minimal highway drone and respectable horsepower gains within that criteria. Through the use of a properly sized tuning tube they were able to increase the volume of the exhaust without increasing the tendency to have drone while at highway speed. A brief explanation of this portion of the exhaust is to cancel out unwanted tones in specific frequency ranges. Think of it as mechanical noise cancellation. Even with this additional technology being applied to the exhaust system it is still 47% lighter than stock. Noise Cancellation Chamber Rear Picture Uninstalled Rear Tips Ultimately, this exhaust works! We had an independent test with a customer of ours who has a VF Stage 1 kit he gained 7 hp by just bolting the exhaust on the car, while retaining the factor catalytic converter. Impressive! Dyno Plot Exhaust Installed *MSRP: $1595 Special Pricing $875 Shipped* To place an order call 240-243-0193 or email Jermaine@visionfunction.com Thanks, Jermaine~ __________________ www.VisionFunction.com - Site Under Construnction - Stay Tuned

10-08-2009, 11:34 AM	#2 (permalink)
luxige luxige Join Date: Jun 2007 Location: MA Posts: 1,187	Any plans to have them develop a version with the exit above the diffuser? __________________ In theory, there is no difference between Theory and Practice. In practice, there is. - Y. Berra

10-08-2009, 12:48 PM	#9 (permalink)
Bane . Join Date: May 2005 Location: AZ Posts: 2,960 Images: 4	Sweet! That would look great with one of our headers __________________ $599 PPE header (INFO) 2007 BMW 335i - Mostly stock un-Official LotusTalk Stealth Bulb provider *6* sets in stock!

10-08-2009, 02:56 PM	#10 (permalink)
Moto44 Back in the Saddle Join Date: Jun 2006 Location: Illinois Posts: 4,798	Sounds very interesting. Is there anything more you can tell us about the quality of the sound and how much louder we could expect it to be? Does it provide any sputters or backfires (in a good way)? Is it a meatier/rumblier sound than stock? Cancelling out drone is good, but does that mean it is considerably quieter than most of the other after market offerings? I realize that it is nearly impossible to answer these questions with words - it needs to be experienced. But, I am seriously interested and without the benefit of hearing it in person, any additional info is much appreciated. Also, I am planning to install your Vision Function supercharger/intercooler. Is there any reason a different exhaust would be a better fit for this combination? Thanks, Todd __________________ If nobody ever died doing it, how much fun could it be? Last edited by Moto44 : 10-08-2009 at 03:09 PM.

10-08-2009, 03:25 PM	#12 (permalink)
Moto44 Back in the Saddle Join Date: Jun 2006 Location: Illinois Posts: 4,798	Thanks for the input, Jermaine. __________________ If nobody ever died doing it, how much fun could it be?

10-08-2009, 12:13 PM	#6 (permalink)
madden Registered User Join Date: Mar 2008 Location: Northern, VA Posts: 613	ya no where near as many people are going to buy a through the diffuser stock looking setup, they should have came up with an above the diffuser exhaust first.

10-12-2009, 07:47 AM	#13 (permalink)
Jermaine@VF Crazy Car Guy Join Date: Apr 2008 Posts: 197	I should have a video up a little later on today. __________________ www.VisionFunction.com - Site Under Construnction - Stay Tuned

10-12-2009, 08:15 AM	#14 (permalink)
Dragon Hydrocarbons Rule Join Date: Sep 2007 Location: Okinawa Japan Posts: 1,742 Images: 2	Errr... HKS has been making parts for the Elise for some time now... HKS Japan Lotus Parts HKS USA Lotus Parts __________________ 2006 Exige; BWR Supercharger, Adj Sway Bar, Ohlins Suspension, BSK Oil Catch Can, Moroso Oil Pan, ORC Clutch, Custom Exhaust, Black Volk Racing CE28N's w/ Toyo R1R's, 2 piece rotors, Pagid Blue Pads, BSK Wet Carbon (Side Skirts, Front Lip Spoiler, Gas Cap Cover, Center Console, Door Panels), Dry Carbon rear Diffuser, Harness Bar, BWR Gauge Mount, OMP Superquadro steering wheel, LETSLA Short Shifter, V2arms, Rear Tow Link Brace, RLS Battery Bracket, BOE Tow Bar, Stickers.

10-12-2009, 08:25 AM	#15 (permalink)
usurbrain Registered User Join Date: Aug 2005 Location: Sunnyvale, CA Posts: 313	According to HKSUSA, the OD piping diameter is 50mm.... which is less than 2" :O __________________ 2008 Exige S240 Storm Titanium, Touring Package, Starshield, Cup Car wheels with R888, Arqray Twin muffler, Cup Car airbox, Nitron Double Adjustable suspension, Saikou Michi catch cans, Bride seat, HID headlights, Lots of track parts...

10-13-2009, 09:29 PM	#16 (permalink)
shay2nak I <3 chicken, I <3 liver Join Date: Dec 2003 Location: Land of da 1000 Oaks, CA Posts: 15,042	dyno plot is not showing __________________ save ~10 lbs gain 1 hp EQ: Y=(190X) / (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

10-13-2009, 10:21 PM	#17 (permalink)
spf4000 Registered User Join Date: Jun 2006 Posts: 606	On the HKS site it says it's for the NA Exige/Elise.

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