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Help identifying ls1 headers

Old Nov 5, 2013 | 09:36 PM
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Default Help identifying ls1 headers

Hello everybody i bought an ls1 for my 98 trans am which had snapped a rod and cracked the block. The headers are 1 3/4in. Theres no stampings on them and on the larger header on the inside of the flange i found the what i believe to be part number 115-832325R 4581. Can anyone help me identify these headers? Are these even for a trans am? What companies y pipe will work? Thanks




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Old Nov 6, 2013 | 06:26 AM
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They look like F body headers. Brand ?
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Old Nov 6, 2013 | 10:47 AM
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If they have no stamping on it ill take a shot in the dark and say they are eBay headers..

You can try and fit your stock y pipe up to see if they are close..

But that does look like a f-body bolt patter. On the flange.
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Old Nov 6, 2013 | 01:20 PM
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I don't think those are eBay headers due to the way the collector would attach to the y-pipe. I don't remember which brands have that connector, though (Mac? BBK?).
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Old Nov 6, 2013 | 01:34 PM
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Didn't jet hot headers have that crushed in primary right before the collector like these do?
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Old Nov 6, 2013 | 09:31 PM
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The dent in them is from hitting something which isn't a big deal i can repair them. They kind of look any old slp headers. Anyone have an idea of what y pipe will work? I really wanna run these headers.
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Old Nov 7, 2013 | 08:36 AM
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those are FLP headers. They arent made anymore but when they were they were some of the best around. The only y pipe that i know of besides a custom one is the flp y. It was pretty cool as it had quick connects to add or remove cats from it and replace them with a straight pipe when wanted. New the system was around 1200 bucks
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Old Nov 7, 2013 | 12:03 PM
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Originally Posted by redbird555
those are FLP headers. They arent made anymore but when they were they were some of the best around. The only y pipe that i know of besides a custom one is the flp y. It was pretty cool as it had quick connects to add or remove cats from it and replace them with a straight pipe when wanted. New the system was around 1200 bucks
I think you're right. Check in the collector to see if there is a velocity spike.
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