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Old Apr 10, 2009 | 11:32 AM
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Default LG Longtubes (Street / Pro)

I'm tired of waiting for longtubes and am now considering going with the LG Street Longtubes instead of the LG Pro.

For those of you with experience or knowledge of Longtube designs and power results, I'd love to hear your thoughts on this. My car is virtually stock now, with only a Halltech Stinger and B&B Bullet Catback. I am planning on purchasing a Procharger in the future and running low boost.

Now, if I were to purchase the LG Streets...what limitations am I looking at when running low boost (5-7psi max)? Would the LG Pro's still be better in this situation?

Thanks!
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Old Apr 10, 2009 | 02:10 PM
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I dont have much knowledge about which longtubes are better than which. However, I just got LG streets installed along with borla stingers. I also have a blackwing intake. I gained 24 RWHP and 25 RWTQ. I love the sound with the stingers and sure you will love it with the bullets. I had the high flow cats installed. Good luck with your search.
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Old Apr 10, 2009 | 02:29 PM
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Originally Posted by SFCVETTE
I dont have much knowledge about which longtubes are better than which. However, I just got LG streets installed along with borla stingers. I also have a blackwing intake. I gained 24 RWHP and 25 RWTQ. I love the sound with the stingers and sure you will love it with the bullets. I had the high flow cats installed. Good luck with your search.
Was that gain with just the longtubes added or did you not have a baseline already done with the intake/catback?
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Old Apr 10, 2009 | 02:33 PM
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whats the difference between the street and pro headers? (flame suit on)
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Old Apr 10, 2009 | 02:43 PM
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Originally Posted by a1231212
whats the difference between the street and pro headers? (flame suit on)
Only difference I am seeing so far is Streets are 2 1/2" pipes and the Pros are 3" pipes. They both use the same collector/primary design.
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Old Apr 10, 2009 | 02:44 PM
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Originally Posted by Quickshift_C5
Only difference I am seeing so far is Streets are 2 1/2" pipes and the Pros are 3" pipes. They both use the same collector/primary design.
yeah same...i wonder what kind of power difference that is...should be minimal though
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Old Apr 10, 2009 | 02:50 PM
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I finished installing the streets a few weeks ago. I wanted the streets because of the 2.5 in design. They will mount up to any "stock like" cat back system. The 3 in system would be more advantageous for a blower I would assume, but either would work. I don't have a pre LT's baseline, but just had the car dyno'd yesterday with a very similar set up as you and made 357 HP and 366 TQ. I was pleased. Oh, and if you decide to install the system yourself have a buddy come over and help. I did it solo and having a helper would have been HUGELY helpful. Good luck.
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Old Apr 10, 2009 | 02:55 PM
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Originally Posted by Fratbragen
I finished installing the streets a few weeks ago. I wanted the streets because of the 2.5 in design. They will mount up to any "stock like" cat back system. The 3 in system would be more advantageous for a blower I would assume, but either would work. I don't have a pre LT's baseline, but just had the car dyno'd yesterday with a very similar set up as you and made 357 HP and 366 TQ. I was pleased. Oh, and if you decide to install the system yourself have a buddy come over and help. I did it solo and having a helper would have been HUGELY helpful. Good luck.
Thanks! I would love to have those kinds of results. My car had a baseline dyno done a couple years ago and put down 312/321 with an unkown aftermarket exhaust only. I swapped that exhaust (was really passive) with the B&B Bullets and added the Halltech Stinger. Hopefully I could get something similar to yours with them.

I haven't decided 100% yet which direction the car will go. I just want to make sure that whichever Longtube setup I purchase will be up to the task. Right now I'm either going to go low boost (5-7psi) with a Procharger or just stay N/A and put in a G5X3 cam/heads/intake.

Either way, it sounds like the Streets will meet my needs. Would love to hear more opinions and hopefully see more results though.
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Old Apr 10, 2009 | 02:57 PM
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Originally Posted by Quickshift_C5
Thanks! I would love to have those kinds of results. My car had a baseline dyno done a couple years ago and put down 312/321 with an unkown aftermarket exhaust only. I swapped that exhaust (was really passive) with the B&B Bullets and added the Halltech Stinger. Hopefully I could get something similar to yours with them.

I haven't decided 100% yet which direction the car will go. I just want to make sure that whichever Longtube setup I purchase will be up to the task. Right now I'm either going to go low boost (5-7psi) with a Procharger or just stay N/A and put in a G5X3 cam/heads/intake.

Either way, it sounds like the Streets will meet my needs. Would love to hear more opinions and hopefully see more results though.
go with the N/A route, and IMO, get the most obnoxious cam money can buy
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Old Apr 10, 2009 | 03:02 PM
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Originally Posted by Quickshift_C5
Thanks! I would love to have those kinds of results. My car had a baseline dyno done a couple years ago and put down 312/321 with an unkown aftermarket exhaust only. I swapped that exhaust (was really passive) with the B&B Bullets and added the Halltech Stinger. Hopefully I could get something similar to yours with them.

I haven't decided 100% yet which direction the car will go. I just want to make sure that whichever Longtube setup I purchase will be up to the task. Right now I'm either going to go low boost (5-7psi) with a Procharger or just stay N/A and put in a G5X3 cam/heads/intake.

Either way, it sounds like the Streets will meet my needs. Would love to hear more opinions and hopefully see more results though.

Best advice I can give is call Anthony at LG. Tell them what you're thinking. Very knowledgable group. I'm leaning towards a cam at the present. As far as bang for the buck, you can't beat it. However, I freakin' love supercharger whine!
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Old Apr 10, 2009 | 03:04 PM
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are the street series headers also made by BORLA industries? cuz i konw the pro series ones are...
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Old Apr 10, 2009 | 03:14 PM
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Originally Posted by a1231212
are the street series headers also made by BORLA industries? cuz i konw the pro series ones are...
You are correct, the Pros are made by Borla. The Streets are not (why they are cheaper), but they are made in the US. Actually, LG told me a shop in Southern California does the welding for them. I have no regrets going with the streets. They really let the engine breathe better.
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Old Apr 10, 2009 | 03:31 PM
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Originally Posted by Fratbragen
You are correct, the Pros are made by Borla. The Streets are not (why they are cheaper), but they are made in the US. Actually, LG told me a shop in Southern California does the welding for them. I have no regrets going with the streets. They really let the engine breathe better.
i mite just go with the streets...im gonna run open long tubes for a day or two
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Old Apr 10, 2009 | 03:36 PM
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Originally Posted by a1231212
i mite just go with the streets...im gonna run open long tubes for a day or two
I installed the hi flow cats and had a Stinger Catback on when I first got done. LOUD!!!!! It sounded cool around town, but honestly the drone sucked. So bad, in fact, that I bought a set of Z06 TI's and mounted them up to deal with it. The Ti's are Ok at higher RPM, but a little quiet at idle. But, at least I can hear the radio on the Freeway now.
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Old Apr 10, 2009 | 03:39 PM
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Originally Posted by Fratbragen
I installed the hi flow cats and had a Stinger Catback on when I first got done. LOUD!!!!! It sounded cool around town, but honestly the drone sucked. So bad, in fact, that I bought a set of Z06 TI's and mounted them up to deal with it. The Ti's are Ok at higher RPM, but a little quiet at idle. But, at least I can hear the radio on the Freeway now.
nice! haha yeah im just gonna take off my exhaust and mufflers, the whole thing haha, open long tubes is gonna be RFL
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Old Apr 10, 2009 | 03:39 PM
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The difference is the streets has a 2 1/2" x-pipe and the pros have a 3" x-pipe. If you are going to put a supercharger on in the future then i would go with the pros. The pros will give you the biggest power increase with a good tune. You can always contact LG and ask them. Maybe one of their guys will chime in on here and give you some advice.
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Old Apr 10, 2009 | 03:41 PM
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Originally Posted by 02MillenniumVette
The difference is the streets has a 2 1/2" x-pipe and the pros have a 3" x-pipe. If you are going to put a supercharger on in the future then i would go with the pros. The pros will give you the biggest power increase with a good tune. You can always contact LG and ask them. Maybe one of their guys will chime in on here and give you some advice.
yeah thatd be cool...so if im not planning on a supercharger, then i shud just go with the streets?
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Old Apr 10, 2009 | 03:44 PM
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Originally Posted by a1231212
yeah thatd be cool...so if im not planning on a supercharger, then i shud just go with the streets?
Its up to you what you want to do since its your money. If your going to do a H/C package or FI at anytime I would suggest going with the pros.
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Old Apr 10, 2009 | 03:48 PM
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Here's my experience with LG's street package. BTW, there IS a difference between the collector/merge tubes, but LG says it's only about 5 rwhp difference for mostly stock engines. As you bump up the power that split widens.

http://forums.corvetteforum.com/c5-t...ppy-owner.html

HTH, and have a good one,
Mike
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Old Apr 10, 2009 | 04:42 PM
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I just contacted LG and spoke with them for a bit about their different Longtube setups. I urge anyone with questions and on the line of deciding which Longtubes to go with to give them a call. Excellent customer service and he didn't seem to mind taking the time to explain to me the details of all the different setups.

He said the LG Streets are made 2 1/2" to bolt right up to a stock Vette and are designed for stock to very mild modifications. His example was if all you are going to do is Intake/Exhaust then they are perfect and the difference between Pro/Street is virtually nothing. He said it would work for big power head/cam and light boosted applications as well, but you might be leaving 15rwhp or so on the table.

The LG Pro setup is more for big Head/Cam and light boosted applications.

The Pro Super setup is for high boost applications and huge power. This has a different collector design and 1 7/8 primaries. Apparently this isn't available for C5 yet, but I think he said it's due out near the end of the month or so. You can view it on the main page of their site at the moment.

I apologize if I interpreted something he said wrong or misunderstood him, I'm definitely no expert. I'm pretty sure this is reasonable accurate.

I still haven't decided what I'm going to do with my setup yet. I really want the LG Pro's, but I don't know if it would really be worth it or not for $600 more. I think if I were to get the LG Streets, they would be adequate for my goals.
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