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Old Nov 21, 2007 | 03:58 PM
  #1  
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anybody know what is the diff between the lg pro and the steet series? in LG's add theres a horse power and torque diff. anybody know why? also anybody install a heat gaurd or somthing to protect the starter from excess heat from the headres??
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Old Nov 21, 2007 | 04:17 PM
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all you need to know is right here. http://www.lgmotorsports.com/catalog...th=342_278_332

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Old Nov 21, 2007 | 04:46 PM
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I think the only difference is the "merge collector" on the Pros. It's more costly to manufacture, and incorporate into the build, but it's value as far as adding power is debateable.
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Old Nov 21, 2007 | 09:33 PM
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I have LG Streets and gained 40 RWHP and 40 RWTQ and that was WITH the cats....

I saved like 600-700 dollars over the Pros! Streets all the way, IMO.
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Old Nov 21, 2007 | 10:34 PM
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I dont know but it looks like the major difference is the streets are 2.5" and the pro are 3"
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Old Nov 22, 2007 | 03:52 PM
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anybody maybe got some dyno sheets showing where the torque kicks in with the street headers?? I want them but i dont want the car to be a slug in the streets.
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Old Nov 22, 2007 | 05:50 PM
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Use the link provided above and go to their website. Click on results and you'll find a number of dyno test results. I'd bet they have more information once you're able to contact them directly.
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Old Nov 22, 2007 | 06:05 PM
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Originally Posted by zeus79
anybody maybe got some dyno sheets showing where the torque kicks in with the street headers?? I want them but i dont want the car to be a slug in the streets.
when i get back home this weekend I will post my dyno sheet with LG Streets and a CAI only.
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Old Nov 29, 2007 | 07:16 PM
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Originally Posted by zeus79
anybody know what is the diff between the lg pro and the steet series? in LG's add theres a horse power and torque diff. anybody know why? also anybody install a heat gaurd or somthing to protect the starter from excess heat from the headres??
The LG Pro system uses a different collector to start with. It is a 'merge' style collector that promotes more savaging of the exhaust to build more power and toque at higher RPM levels. The Pro's are also a full 3" system all the way back. The Pro's feature a smoother Siamese X pipe design that has less turbulence in high RPM. These are designed to work with your factory, factory replacement or soon to be full 3" muffler system.

The Street Series were born from our Pro system and have the same 1 3/4" primary design but a less costly 4 into 1 collector. The rear section of the Street Series is a 2.5" rather than 3" on the Pro. These also use a stamped X pipe design, again still a used for more torque but reduces the cost from the Pro's.

The Street's were designed for the stock or bolt on car and still provide great gains over stock, but keeping more money in your pocket!

I have both in stock and ready to go! Let us know how we can help.
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Old Nov 29, 2007 | 11:53 PM
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Do you have to eliminate or simulate the rear o2 sensors with the street version?
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Old Nov 30, 2007 | 07:40 AM
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not if you use catts.
Steve
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