2bular NA Evora Exhaust System - LotusTalk - The Lotus Cars Community
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post #1 of 99 (permalink) Old 07-16-2012, 01:22 PM Thread Starter
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2bular NA Evora Exhaust System

I received the last pieces of my 2bular NA Exhaust System today.
You can see the "PreCat" O2 sensor ports in the Header Collectors, and the "PostCat" Ports on the distal end of the Metallic Cat.

I'm anxious to get them installed, but it may be a couple weeks, since I'm waiting for my new 2 post lift to arrive, and I've got a couple races coming up.

I'll post photos of the install, along with before and after Dyno data.
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post #2 of 99 (permalink) Old 07-16-2012, 01:46 PM
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Quote:
Originally Posted by Bobsy Racer View Post
I received the last pieces of my 2bular NA Exhaust System today.
You can see the "PreCat" O2 sensor ports in the Header Collectors, and the "PostCat" Ports on the distal end of the Metallic Cat.

I'm anxious to get them installed, but it may be a couple weeks, since I'm waiting for my new 2 post lift to arrive, and I've got a couple races coming up.

I'll post photos of the install, along with before and after Dyno data.
Hey Don nice floor!
Ron

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2005 Lotus Elise
2011 Lotus Evora 2+0
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post #3 of 99 (permalink) Old 07-16-2012, 02:39 PM
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ahh... and the B side too

"I really started paying attention to cars was when they came out with the Nissan Z, the first body. Then I seen the Cherokees, the old square ones, and I was like, “Wow, that’s cool.” Then I seen the Isuzu jeeps and I seen the Wranglers."
-Lotus Cars VP of Global Design
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post #4 of 99 (permalink) Old 07-16-2012, 06:41 PM
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That looks like some seriously high quality stuff. Looking forward to see your numbers soon.
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post #5 of 99 (permalink) Old 07-16-2012, 08:55 PM
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yeah, Jim doesn't play around.

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post #6 of 99 (permalink) Old 07-16-2012, 09:23 PM
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Very nice, Don!

The Evora's have come a long way from having nothing available.. Now we got an awesome CAI, several of exhaust upgrades...even a couple of supercharger kits to choose from.

It's only a matter of time before someone offers an engine swap solution!
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post #7 of 99 (permalink) Old 07-16-2012, 09:47 PM
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Those are gorgeous... Still so tempted...
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post #8 of 99 (permalink) Old 07-17-2012, 08:13 AM
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I had this installed a couple of weeks ago. The sound with the radium CAI is amazing! Which cat did you get from him?

2010 Lotus Evora
Carbon Grey Sports Pack, Tech Pack
Difflow Diffuser, Radium CAI, 2Bular headers, 2Bular Downpipe, 2Bular 100cell Cat.
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post #9 of 99 (permalink) Old 07-17-2012, 08:23 AM
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Hopefully there won't be a proven S version come along. My vow not to mod would be seriously challenged.
And please, no CAI either!

Anyone can make something complicated. It takes genius to make it simple. Einstein.
2011 Evora S Racing Heritage Edition (#3 of 4) (Now with alexsharkeyross)
2005 Elise LRG, Trim Shop interior, full cage, Cup wheels, BWR 'charger lives!
1974 Lotus Europa Special 3841R in JPS livery (Doc Jay has her)
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post #10 of 99 (permalink) Old 07-17-2012, 08:44 AM Thread Starter
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Quote:
Originally Posted by HOLIDAYLOBSTER View Post
I had this installed a couple of weeks ago. The sound with the radium CAI is amazing! Which cat did you get from him?
I got the 200cell Metallic Sports Cat.
I think that is all Jim is currently offering.
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post #11 of 99 (permalink) Old 07-17-2012, 08:50 AM Thread Starter
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Quote:
Originally Posted by XHILR8N! View Post
Hopefully there won't be a proven S version come along. My vow not to mod would be seriously challenged.
And please, no CAI either!
I think Jim at 2bular has the Larger Diameter S System pretty much finished.
See post #31:
2bular N/A Evora Downpipes/Cat/De-Cat!
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post #12 of 99 (permalink) Old 07-17-2012, 05:54 PM
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looks great! very nice bends, now lets see a muffler!

'10 Chrome Orange Evora
3020 lbs wet, 285 whp, grins for miles
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post #13 of 99 (permalink) Old 07-17-2012, 06:57 PM
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Quote:
Originally Posted by Bobsy Racer View Post
I think Jim at 2bular has the Larger Diameter S System pretty much finished.
See post #31:
2bular N/A Evora Downpipes/Cat/De-Cat!
That's a start. But thankfully (for my vow to remain stock) there's plenty more to do. Incl ECU "experiments"

Sarcasm aside, this is an exciting prospect. Even though there is a lot to be said for the grown up stock sound.

Anyone can make something complicated. It takes genius to make it simple. Einstein.
2011 Evora S Racing Heritage Edition (#3 of 4) (Now with alexsharkeyross)
2005 Elise LRG, Trim Shop interior, full cage, Cup wheels, BWR 'charger lives!
1974 Lotus Europa Special 3841R in JPS livery (Doc Jay has her)
2007 Toyota Tundra (about 10 cup holders), traded for 2015 Tundra TRD PRO
2008 Audi A4, 2007 Audi S4 DTM (RIP) 1980 Rover SD1 (new home) 2015 Honda Civic Si
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post #14 of 99 (permalink) Old 07-17-2012, 08:40 PM Thread Starter
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Quote:
Originally Posted by XHILR8N! View Post
That's a start. But thankfully (for my vow to remain stock) there's plenty more to do. Incl ECU "experiments"

Sarcasm aside, this is an exciting prospect. Even though there is a lot to be said for the grown up stock sound.
I think the ECU tuning should be done AFTER the Exhaust System, to optimize the benefits of each.

I'm not as interested in the sound as I am in the 30 HP to be gained. Having said that, my stock NA Evora is SO quiet that sometimes I have to look at the tach to know when to shift.
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post #15 of 99 (permalink) Old 07-17-2012, 09:03 PM
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I think you'll be very impressed with the combination of that exhaust system and a sport muffler. The sound will match its looks
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post #16 of 99 (permalink) Old 07-18-2012, 06:14 AM
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Quote:
Originally Posted by Bobsy Racer View Post
I got the 200cell Metallic Sports Cat.
I think that is all Jim is currently offering.
I was talking with him about it and he did a 100cell cat for me. Jim is the man!

2010 Lotus Evora
Carbon Grey Sports Pack, Tech Pack
Difflow Diffuser, Radium CAI, 2Bular headers, 2Bular Downpipe, 2Bular 100cell Cat.
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post #17 of 99 (permalink) Old 07-18-2012, 08:07 AM
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I noticed there is an o2 bung on each of the 2bular header manifolds, I thought these were removed and instead, the o2's were extended to be placed onto the cat?

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post #18 of 99 (permalink) Old 07-18-2012, 09:22 AM
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1 upstream and 1 downstream for each cat's element.

Anyone can make something complicated. It takes genius to make it simple. Einstein.
2011 Evora S Racing Heritage Edition (#3 of 4) (Now with alexsharkeyross)
2005 Elise LRG, Trim Shop interior, full cage, Cup wheels, BWR 'charger lives!
1974 Lotus Europa Special 3841R in JPS livery (Doc Jay has her)
2007 Toyota Tundra (about 10 cup holders), traded for 2015 Tundra TRD PRO
2008 Audi A4, 2007 Audi S4 DTM (RIP) 1980 Rover SD1 (new home) 2015 Honda Civic Si
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post #19 of 99 (permalink) Old 07-20-2012, 05:12 PM
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The 2bular system sounds evil, yet, beautiful in conjunction with the Radium cai and the Janspeed muffler.
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post #20 of 99 (permalink) Old 07-20-2012, 06:09 PM
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Any sound or video clips?? I would love to hear it and compare it with my SS system
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