Tested in a store with more than 45.000 products and 500.000 of attributes.
Demo:
StoreFront: http://advancedv3.ocmodules.com
Admin http://advancedv3.ocmodule.com/admin/ user: demo // pass: demo
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Module Advanced menu V3:
http://www.opencart.com/index.php?route ... n_id=11990

ADVANCED LAYERED MENU VERSION V2 v2.x
Tested in a store with more than 45.000 products and 500.000 of attributes.
Demo:
StoreFront: http://advanced.ocmodules.com
Admin user: http://advanced.ocmodule.com/admin/ demo // pass: demo
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Demo themes
http://shoppica2.ocmodules.com
http://sellegance.ocmodules.com
http://wholesale.ocmodules.com
Module Advanced menu V2:
http://www.opencart.com/index.php?route ... on_id=4596

STANDARD LAYERED MENU VERSION 2.0.7
Demo:
StoreFront http://opencart.tictachome.com/index.ph ... path=33_59
Admin user: http://opencart.tictachome.com/admin/in ... tegorymenu demo // pass: demo
Module Standard menu:
http://www.opencart.com/index.php?route ... on_id=5497

We recommed to purchase Attribute Helper for robust data helper:
http://www.opencart.com/index.php?route ... on_id=4384

Fell free to contact with me.
Support: yop289@gmail.com