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Thread: LT's
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11-19-2006, 05:24 AM #1
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Navy Blue Metallic- 1998 Pontiac Trans Am
LT's
Does installing LT's on your car require anything past the Y-Pipe to be relocated? I understand you need a different Y-Pipe if you install LT's due to the length of the headers, put does that just mean the Y-Pipe is a lot shorter than stock, and the cat/exhaust still sit at the same location, or does installing LT's require everything to be adjusted?
Right now Im trying to get LT's, and a Y Pipe installed, but keep the factory cat and exhaust. Next month, I plan to replace those as well, I just want to make sure I can do it in that order, and not have to replace everything at once due to LT's.
Any experts?
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11-19-2006, 05:55 AM #2
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Black- 2000 WS6 6spd Hooker LT
LT and factory cats = cannot do this. LT move the location of the cats. You could use shorty headers to keep your stock cat location, but not too much HP improvement for the cost. Not sure what your options are out there in sunny San Diego as far as headers go. Rainy and 39 degrees here this morning. My Hookers and ORY and most others connect to the same spot where the cat back exhausts do. Everything before the factory cat back is adjusted.
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11-19-2006, 02:30 PM #3
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Navy Blue Metallic- 1998 Pontiac Trans Am
okay I see. So if the location of the factory cat will change as well, Im assuming that the factory intermediate pipe (if thats whats its called..the pipe from the cat to the muffler) will not work either, since the cat will change location.
I guess if you are going with longtubes, you pretty much have to replace the entire exhaust all at once
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11-19-2006, 04:53 PM #4
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Pewter metallic- 2000 Camaro SS
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11-19-2006, 05:51 PM #5
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Black- 2000 WS6 6spd Hooker LT
[QUOTE=ketterms;470351
I guess if you are going with longtubes, you pretty much have to replace the entire exhaust all at once[/QUOTE]
Not really, I have the same cat back as before my LT. It could still be all OE cat back if you want. Look under your car to see where the cat back connects, you'll see. Just behind the driveshaft tunnel brace is where all cat-backs connect.
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11-20-2006, 07:04 AM #6
If your picking up longtubes and ory your i pipe back will connect just fine.
If you plan on reataining your cats you will have too pick up some high flow cats so they can be tucked away.
lt's and stock cats do not go together.
Just pick up an ory and go without cats.
J2001 SS, Its not the car its the Driver that matters....
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11-20-2006, 08:23 AM #7
The catback should connect fine with whatever setup you go with, it's just the cats that will need adjustments.
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11-26-2006, 02:52 PM #8
How are all of you people who use ORY's passing state inspections?
I have been trying to do some research on this but if these are illegal in all 50 states how is this possible? do you change out once a year for inspection?
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11-26-2006, 03:32 PM #9
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Black- 2000 WS6 6spd Hooker LT
No inspections in my state....or at least not here in Indy.
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11-26-2006, 04:27 PM #10
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12-01-2006, 11:12 AM #11
No state inspections in SC either. And back in VA I worked at a shop and got my sticker for free. The only trouble with that would be if I was pulled over. They can make you change your exhaust and you would have to go to court with all of the reciepts. In CA dont they give you the sniffer test? You would also fail the visual inspection with the modified location of the stock cats. I dont have any worries in SC. My y bolted right up to the i pipe.
http://i88.photobucket.com/albums/k1...98Camarod3.jpg
241's l Comp XER 230/230 Cam l SS4000 l Juice
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12-01-2006, 08:58 PM #12
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12-02-2006, 08:07 PM #13
I don't know about emissions, but dynatech makes a killer lt header, y-pipe, w/ high flow cats, all ss, very nice, and it retains all 02 sensors, and doesn't trip the check engine light. As far as a visual exam, get it coated black, alot less conspicious, and harder to see from under the car, you could probably do this in your back yard, or take it to a shop.
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