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LG long tubes question

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Old Oct 14, 2005 | 03:04 PM
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Default LG long tubes question

Thinking about buying a pair of LG"s, with hi flo cats and X pipe as I have the Corsa indy's on already. My question is the power that this setup will produce, will it be noticed "by the seat of the pants"? as I would not be putting on a dyno. And how is the power on the bottom end, and were does the real power band start? Thanks
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Old Oct 14, 2005 | 03:49 PM
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I haven't tested LGs, but with other long tube/high flow cat setups, I've seen 35-40 horsepower increases at the wheels. Corvette Fever has done a few tests over the years and I think they reported a 37 horsepower increase. No reason the LGs shouldn't be just as good or better. From what I recall, the power increase was pretty much across the board. Not as big an increase down low, but there was an increase.
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Old Oct 14, 2005 | 04:37 PM
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I would expect about 25 HP with cats.
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Old Oct 14, 2005 | 06:21 PM
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Originally Posted by vettenuts
I would expect about 25 HP with cats.
That's what I got without cats. Torque increased about the same.
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Old Oct 14, 2005 | 07:01 PM
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25 HP you can feel SOTP
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Old Oct 14, 2005 | 07:08 PM
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I did another brand and didn't get squat on dyno or at strip. You will spend the money well with LG's - do not worry so much about dyno - as the man said: "it's when the rubber meets the road!!"
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Old Oct 14, 2005 | 09:02 PM
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Plus if you use the cats they have you won't be loosing much in the way of power, I dynoed with and without and pulled the same HP but lost four lbs of TQ.
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Old Oct 14, 2005 | 10:20 PM
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These headers rock! I love 'em. With the headers and a tune (if you are stilling running a stock tune) you will gain 40-45 hp. I did on my Coupe.
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Old Oct 15, 2005 | 09:30 AM
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Thanks for all the replys!
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Old Oct 15, 2005 | 04:15 PM
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Squeeser,
I had the same setup and it was way too loud! 98dbs at startup. Wife could tell I was coming home a mile away, no $hit. After a tune I got less that 15rwhp. H/C + is the way to see large increases from LGM LTs. I ended up with stock Tis and sold the Corsas, much happier!
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