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LG Streets VS LG Pros

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Old Sep 9, 2008 | 01:29 PM
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Default LG Streets VS LG Pros

From what I understand the Pros are 3" where the Streets are 2 1/2", are there any other differences between the two, would the benefit of the pros be worth the $500 difference. This would be installed on a 2003 M6 Coupe
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Old Sep 9, 2008 | 02:45 PM
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What makes our Pro's different from our Street Series?
  • Street Series use a 4 into 1 collector vs. the merge collector on the Pro's
  • The Pro Series uses a larger 3" diameter mid section vs. 2.5" for the S.S.
  • Pro's have a Siamese 3" X pipe vs. 2.5" X on the S.S.
  • Street Series come with a high polish finish standard


Mainly it is going to depend on what all you are going to do with the car. Given a completely stock car, you are going to see very little change between the two.

More highly modified cars will see a larger difference between the collector and the mid-section going from 2.5" to 3".

Of course the Pro's also allow the use of a LG Big 3 to make it a complete 3" system.
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Old Sep 9, 2008 | 07:40 PM
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Originally Posted by Anthony @ LGMotorsports
What makes our Pro's different from our Street Series?
  • Street Series use a 4 into 1 collector vs. the merge collector on the Pro's
  • The Pro Series uses a larger 3" diameter mid section vs. 2.5" for the S.S.
  • Pro's have a Siamese 3" X pipe vs. 2.5" X on the S.S.
  • Street Series come with a high polish finish standard


Mainly it is going to depend on what all you are going to do with the car. Given a completely stock car, you are going to see very little change between the two.

More highly modified cars will see a larger difference between the collector and the mid-section going from 2.5" to 3".

Of course the Pro's also allow the use of a LG Big 3 to make it a complete 3" system.

ok so for someone that is planning on long tubes, with borla stingers, vortex intake, a tune, and maybe a cam

what would you suggest and with or without cats.
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Old Sep 9, 2008 | 11:05 PM
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If you stick with an average cam it won't make much difference, maybe 5rwhp. I would stick with the Streets unless you swap the heads or add a supercharger.
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Old Sep 10, 2008 | 10:10 AM
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Milder cam setups with all of the bolt on's, I think you could save money by going with the Street Series.

Bigger cam packages, cylinder heads, or Forced Induction should go with the Pro's for maximum gains.
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Old Sep 10, 2008 | 12:58 PM
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ok last question, and I appreciate your responses. Is there a sound difference between the two?
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Old Sep 10, 2008 | 01:26 PM
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Originally Posted by n8dogg
ok last question, and I appreciate your responses. Is there a sound difference between the two?
Not that I could ever tell. The Street's might be a little quieter, but you would have to measure it to confirm. The difference is less than what my ears can tell.
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Old Sep 10, 2008 | 10:28 PM
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I run the Streets with no cats and the factory Ti Exhaust. It is quiet at idle, no drone at all, and screams when you get on it. I love the sound.
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Old Sep 11, 2008 | 01:31 AM
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Originally Posted by n8dogg
ok last question, and I appreciate your responses. Is there a sound difference between the two?
I have always had the Magnaflow exhaust on my Z06, which has a nice deep sound but is known for being more on the quieter side than other catbacks. After putting on the "streets", the exhaust system has really come alive. Magnaflow with LG headers is a terrific sounding combo, more like an older rumbling Vette.
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Old Sep 11, 2008 | 01:41 PM
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Originally Posted by striper
I have always had the Magnaflow exhaust on my Z06, which has a nice deep sound but is known for being more on the quieter side than other catbacks. After putting on the "streets", the exhaust system has really come alive. Magnaflow with LG headers is a terrific sounding combo, more like an older rumbling Vette.
I have heard a few MagnaFlow setups with our heads, and it does sound very good.

Definitely a rare combination.
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Old Sep 11, 2008 | 08:05 PM
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I have a set of the Pros on the stock Ti exhaust and it sounds amazing.....when I do the radical H/C package in a month it will be out of this world!
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Old Sep 12, 2008 | 11:51 AM
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How do the Streets sound with the Borla Stingers, with and with out cats
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Old Sep 15, 2008 | 04:12 PM
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Originally Posted by n8dogg
How do the Streets sound with the Borla Stingers, with and with out cats

I don't know if I have a sound clip of the Stingers on a C5, but I know we do of a C6, which should sound similar.

C6 LG Long Tubes and Borla Stingers
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Old Sep 15, 2008 | 05:12 PM
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Originally Posted by Anthony @ LGMotorsports
I don't know if I have a sound clip of the Stingers on a C5, but I know we do of a C6, which should sound similar.

C6 LG Long Tubes and Borla Stingers
Anthony, a common concern with the LGstreets seems to be the quality of the clamps included. Has LG addressed this?
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Old Sep 15, 2008 | 05:26 PM
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Originally Posted by lucky131969
Anthony, a common concern with the LGstreets seems to be the quality of the clamps included. Has LG addressed this?
We have upgraded the clamps since the first sets were delivered, since that time issues have dropped dramatically.

I do also have a HD option as well that uses the same clamps as the Pro systems as well.
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Old Sep 15, 2008 | 05:36 PM
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Originally Posted by Anthony @ LGMotorsports
We have upgraded the clamps since the first sets were delivered, since that time issues have dropped dramatically.

I do also have a HD option as well that uses the same clamps as the Pro systems as well.
Great, thanks for the quick reply.
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Old Sep 15, 2008 | 06:45 PM
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I bought the Pros back in '03, and I've never had problems with fitment, or clamps failing to seal. Had a couple of issues over the years, and LGM has always been extremely helpful and courteous. A fine company, with an excellent product.
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Old Sep 15, 2008 | 07:23 PM
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Originally Posted by lucky131969
Great, thanks for the quick reply.
Not a problem at all, that's what I'm here for!
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Old Sep 16, 2008 | 08:36 PM
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Originally Posted by lucky131969
Anthony, a common concern with the LGstreets seems to be the quality of the clamps included. Has LG addressed this?
Problems with clamps and sealing here. Bought the car with them already on so I can't complain too much.
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Old Sep 18, 2008 | 07:15 PM
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last thing I want are any issues with a 1000 dollar product. I have recently heard by New Era Performance here in Rochester is that American Racing has the best overall long tube headers. They claim they have proven to provide excellent fitment, the most gain in HP, and excellent quality. Any reason why I should go with LG Streets over American Racing?
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