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Old Sep 12, 2006 | 09:23 PM
  #1  
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I need to pull the trigger here guys on my new headers( winter is fast approaching) I was thinking about buying the LG longtubes, with the high flow cats, but was just checking out the kooks headers as well. The price difference is quite abit, in favor of the Kooks. Sooo is there any real difference between the two Those of you running these headers, please jump in....Thanks
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Old Sep 12, 2006 | 09:39 PM
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ive got coated LG pros, no cats, stock mufflers and LOVE my setup.
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Old Sep 12, 2006 | 09:42 PM
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only if you are racing your car and must have the extra 10hp you might get with the LGs.
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Old Sep 12, 2006 | 10:14 PM
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Originally Posted by LT1driver
only if you are racing your car and must have the extra 10hp you might get with the LGs.
Yea, it would only be for the fun factor on the street, although you never know. Would you reccomend the kooks with high flow cats and X-pipe. I was also considering going with bassani exhaust, not so much for H.P.m but more for the sound.
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Old Sep 13, 2006 | 01:00 AM
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How about LG "Street" series. They're alot cheaper than the Pros, and much easier to install than the Kooks. They've still got the long primaries, too so they should have the increased torque. I don't like Bassanis on Mustangs, or Corvettes. They sound metallic compared to most other brands. They do make a nice tip design, the two large oval design is pretty cool. Corsa also has a set like that, and though they're high pitched, it's a better sound than Bassani, IMO.
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Old Sep 13, 2006 | 10:23 AM
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I'll muddy the water further and suggest American Racing headers and a visit to the Vette Doctor.
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Old Sep 13, 2006 | 11:03 AM
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Originally Posted by zeevette
How about LG "Street" series. They're alot cheaper than the Pros, and much easier to install than the Kooks. They've still got the long primaries, too so they should have the increased torque. I don't like Bassanis on Mustangs, or Corvettes. They sound metallic compared to most other brands. They do make a nice tip design, the two large oval design is pretty cool. Corsa also has a set like that, and though they're high pitched, it's a better sound than Bassani, IMO.
Hey zeevette, i was wondering what makes the installation of the Kooks more difficult over another. once again thanks for the response.
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Old Sep 13, 2006 | 11:20 AM
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I just installed a new set of LG Streets on my Z06, maintained the Ti also. Very happy with them, install was fairly easy.
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Old Sep 13, 2006 | 12:11 PM
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Originally Posted by mysterymachine
Hey zeevette, i was wondering what makes the installation of the Kooks more difficult over another. once again thanks for the response.
I guess it's just the way they're bent. In most cases you have to unbolt one side of the motor and lift it (I've read) and in past cases remove the steering linkage. I think they redesigned them about a year ago, but some install problems persist. Also they have a shorter length on the tubes, and no merge collectors, which probably doesn't hurt peak power, but does alter the torque curve, especially with the larger 1.7/8 size. Both of these effects are most likely minor, and if there's a lot of price difference, the Kooks are a great alternative, as are the Dynatech, and now the American Racing, and Stainless Works. Just as long as they're stainless steel, they're all OK.
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Old Sep 13, 2006 | 12:29 PM
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The Z deserves the best. If you're on the virge of buying headers do it once and right the first time. Go with the LG longtubes why not gain all that you could out of headers? I dont see anyone putting on headers just for sound! If you want sound you change the catback which cuts the costs a lot, but if you are doing headers go with the proven best out there.
Good luck to you.
Hope you are happy with your decision.
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Old Sep 13, 2006 | 01:10 PM
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I bought my Z used, it already had SLP long tube headers and hi flo cats on it. I've had the car at a very reputable tuner getting some other work done, and asked if I should change them for another brand. A credit to their honesty, they told me not worth it, as you really won't see an increase in hp or tq. So even though they're not exactly created equal, they're all very close as to hp/tq increase.
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Old Sep 13, 2006 | 01:27 PM
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dynatech LTs here!! similar design to the LGs. there are a couple of used sets for sale in the C5 parts section.
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Old Sep 13, 2006 | 02:25 PM
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Some misinfo in here... If money is no object I'd get the LGM for sure. They make similar HP but about 5-10 ft/lbs more accross the board. The big plus is how easy they are to install, they pretty much just slip in.

On the other hand the Kooks are a pita to put in... really not that hard just more to take out. To get my early production (late '03) kooks in/out I had to remove the alternator, steering shaft, valve covers and coil packs, oil, oil filter, and remove the lower bolt on the motor mounts. I then had to jack the motor all the way to the side and fight w/ the headers. Their newer design still requires all the same stuff but they'll slip in easier. Kooks are available in 1 3/4ths and 1 7/8ths diameters whereas LG are only available in 1 3/4ths, but unless you have FI or a huge NA motor you want 1 3/4ths.

Quality wise they're both top notch... but you'll pay about $300 more for the LGs. $1800 vs. about $1500.
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Old Sep 13, 2006 | 02:46 PM
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Originally Posted by Cobra4B
Some misinfo in here... If money is no object I'd get the LGM for sure. They make similar HP but about 5-10 ft/lbs more accross the board. The big plus is how easy they are to install, they pretty much just slip in.

On the other hand the Kooks are a pita to put in... really not that hard just more to take out. To get my early production (late '03) kooks in/out I had to remove the alternator, steering shaft, valve covers and coil packs, oil, oil filter, and remove the lower bolt on the motor mounts. I then had to jack the motor all the way to the side and fight w/ the headers. Their newer design still requires all the same stuff but they'll slip in easier. Kooks are available in 1 3/4ths and 1 7/8ths diameters whereas LG are only available in 1 3/4ths, but unless you have FI or a huge NA motor you want 1 3/4ths.

Quality wise they're both top notch... but you'll pay about $300 more for the LGs. $1800 vs. about $1500.
Thanks for all the responses guys. Cobra4B, you make a convincing argument about both the LG and the Kooks. I'm going to go with the LG Pros, for the extra cash i think it will be worth it! I beleive i also go with the the X-Pipe LG sells, i beleive Borla makes it. now the next thing i need to decide on is which exhaust to go with. I know its a personnal thing, but i listen to the video clip of one of are members who had the bassani installed, and it sounded pretty good. Anyhow, i have a serious illness, its called the MOD. BUG Thanks guys
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Old Sep 13, 2006 | 05:18 PM
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as i have been searching this site... it seems that everyone wants or has the LGs

i have seen a pair of new LGs next to a set of new Kooks.... the kooks were a much nicer looking product!
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Old Sep 13, 2006 | 05:38 PM
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I've been wanting to do headers on my 04 Z06 since I got her.. so this thread really got my attention and just about finalized my decision on the LG Pro LT's ...

However, their street series are on sale for $995 now.. almost too good to pass up (almost). Yes, LG, I want that extra 10HP ...
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Old Sep 14, 2006 | 03:50 PM
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Originally Posted by mysterymachine
I'm going to go with the LG Pros, for the extra cash i think it will be worth it! I believe i also go with the the X-Pipe LG sells, i believe Borla makes it. now the next thing i need to decide on is which exhaust to go with.
Hi mysterymachine,

LG Pros are a fine choice indeed.

I think the guys at LG are first rate. My install was no problem (my friend and I did the install with the help of a four-point lift) and I only busted one knuckle!

Here's a clip of the completed system with a Borla quad catback replacing the stock Ti catback.

http://s111.photobucket.com/albums/n...gAnch=imgAnch1

By the way...I believe Borla actually makes the headers too.

Don't forget to maximize the exhaust mod with a dyno tune.

Have fun!
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Old Sep 14, 2006 | 03:56 PM
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Borla makes the whole system based on LGs design.
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Old Sep 14, 2006 | 04:24 PM
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Originally Posted by Jay's Z
Hi mysterymachine,

LG Pros are a fine choice indeed.

I think the guys at LG are first rate. My install was no problem (my friend and I did the install with the help of a four-point lift) and I only busted one knuckle!

Here's a clip of the completed system with a Borla quad catback replacing the stock Ti catback.

http://s111.photobucket.com/albums/n...gAnch=imgAnch1

By the way...I believe Borla actually makes the headers too.

Don't forget to maximize the exhaust mod with a dyno tune.

Have fun!
Hey jaysZ06, thanks for the response. Your car sound awesome, just the sound i was looking for Yea the tuner is doing the full install and tue for me . appreciate the imput. By the way is there a specific parts number for your exhaust, or is it just the quad catback? Thanks again.
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Old Oct 9, 2006 | 06:49 AM
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How do the LG's compare to the American Racing?

I heard from a source that: "LGs primary length is way outta wack. Some are 40" long and some are 30" long" and that the AR are all equal length? Can someone conquer (sp)?

I do want the highest rwhp output!
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