LT1-LT4 Modifications 1993-97 Gen II Small Block V8

LT and borla combo?

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Old Jun 21, 2004 | 10:41 AM
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Default LT and borla combo?

anybody have this combo and gets a real loud rasp noise at certain times, usually around 2500 to 3000 rpm. i love what it sounds like except for when it gets this loud rasp at certain times.
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Old Jun 21, 2004 | 01:04 PM
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Just ad another resonator on the I-Pipe and you should be fine. Do you have a cat on your car? If you don't, get one.
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Old Jun 21, 2004 | 01:56 PM
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Have had this combo on multiple cars. What's interesting is that the single cat borla sounded twice as deep and intense as the dual cat borla I had. I thought it was a fluke until I sold the single cat borla to this chick that has a dual cat car. It completely transformed the sound of her car and had that same depth like it had on mine. I haven't had any rasp tho as LT1's aren't known for being raspy
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Old Jun 21, 2004 | 02:08 PM
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i dont get a rasp, but at like 4500 or so when i shift if im on it, i get a sucking/ rasp if u will, i think it sounds good
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Old Jun 22, 2004 | 05:07 PM
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i have no cats. it sounds great except when it gets that loud annoying sound
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Old Jun 22, 2004 | 06:37 PM
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Some people like rasp. I for one, hate it. I can't stand it. I personally don't think it sounds good, but when I see a kid driving an F-Body that sounds really raspy I immediately think "Wow, there's a kid who knows nothing about how to build a good-sounding exhaust."

Then again, that's just me being a huge ******* with a big holier-than-thou complex.
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Old Jun 23, 2004 | 12:23 PM
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Originally Posted by warbird27
anybody have this combo and gets a real loud rasp noise at certain times, usually around 2500 to 3000 rpm. i love what it sounds like except for when it gets this loud rasp at certain times.
Been there done that, when I was stock I tried the Dynatech cones..blah didn't do squat, I have JetHots, 3"Y, no CATs & open Borla. Simply put the Borla sounded good until I went longtubed with no cats, it sounded like a stock LS1 with no CATs & SLP Loudmouth, I hated the rasp. I was two weeks away from selling the Borla and ended up rebuilding my block, monster cam/valvetrain, etc & fell in love with it again, it has the deep Borla tone again.
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Old Jun 23, 2004 | 09:38 PM
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My XR1 is really deep in the low RPM's and then when you open it up, it sounds like a NASCAR. I can't wait to hear what it sounds like with this bigger cam.
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