V12 Non-cat downpipes !
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From: Pacific Northwest USA
V12 Non-cat downpipes !
Lookie what I found !
These non-cat downpipes are NLA from Jaguar and doubly hard to find in the USA. But I scored a pair, never used, OEM with Jaguar labels still affixed. A bit scruffy from age and storage but they'll clean up OK.
I'm chuffed
.
Cheers
DD
These non-cat downpipes are NLA from Jaguar and doubly hard to find in the USA. But I scored a pair, never used, OEM with Jaguar labels still affixed. A bit scruffy from age and storage but they'll clean up OK.
I'm chuffed
.Cheers
DD
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From: Bremen, Germany
Doug, I hope you didn't pay a fortune, as Simply Performance offers them in better quality out of stainless steel for like £150/piece IIRC.
My old factory ones were so bad, they fell apart upon removal... Factory non-cat downpipes... Dreadful. The pipe into the exhaust manifold isn't even welded to the pipes. It is just a press fit and with time loosens itself...
My old factory ones were so bad, they fell apart upon removal... Factory non-cat downpipes... Dreadful. The pipe into the exhaust manifold isn't even welded to the pipes. It is just a press fit and with time loosens itself...
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Doug, I hope you didn't pay a fortune, as Simply Performance offers them in better quality out of stainless steel for like £150/piece IIRC.
My old factory ones were so bad, they fell apart upon removal... Factory non-cat downpipes... Dreadful. The pipe into the exhaust manifold isn't even welded to the pipes. It is just a press fit and with time loosens itself...
My old factory ones were so bad, they fell apart upon removal... Factory non-cat downpipes... Dreadful. The pipe into the exhaust manifold isn't even welded to the pipes. It is just a press fit and with time loosens itself...
Paid £134 for the pair, including 4 new donuts/olives.
Cheers
DD
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From: Austin tx and Daytona FL.
great find Doug,, i was looking to find some but no such luck!
so i made some up close to what you have , but much longer, for custom side pipes, my diameter is 2 1/2" OD, to fit full flow mufflers, and final outlet 5" OD.
yes probably overkill but didnt want any backpressure! hard to see but left side runs under convertor area, ALL 12 cylinders out the right side!
Hey if it dont go fast , make it sound like it does!! i get a lot of remarks about the sound.
ron
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I have put them on a 1992 Series III when my cats plugged up and honestly I couldn't feel any difference in performance or fuel economy. The only difference I could notice was the smell of the exhaust. If your old cats are still serviceable, I would keep them.
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My primary motivation is to gain back some ground clearance. The converters drop a couple inches below the belly of the car ....and my car rides lower in the front than most. Lots of crunching !
Cheers
DD
Cheers
DD
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From: Jaffrey, NH
SNG Barratt in Manchester NH USA will happily sell you non-cat stainless down pipes, no doubt for off road use only
Parts are BSJR234 and BSJF235
https://www.sngbarratt.com/us/#!/Eng...e-effa5692914d
Parts are BSJR234 and BSJF235
https://www.sngbarratt.com/us/#!/Eng...e-effa5692914d
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SNG Barratt in Manchester NH USA will happily sell you non-cat stainless down pipes, no doubt for off road use only
Parts are BSJR234 and BSJF235
https://www.sngbarratt.com/us/#!/Eng...e-effa5692914d
Parts are BSJR234 and BSJF235
https://www.sngbarratt.com/us/#!/Eng...e-effa5692914d
Gah! I looked at SNG many times and never saw them. Maybe because I was seaching under Jaguar part numbers?
Oh well, I couldn't have afforded them at that price anyway.
Cheers
DD
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Intentional. I used XJS springs and left all the spacers out....hoping I would get a slightly lowered stance. Came out just right....except for ground clearance
Cheers
DD
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The non-catalyst cars didn't use O2 sensors so no bung is provided...but can be easily added.
Or a person could go ditch the sensors and go to a non-catalyst ECU
Cheerrs
DD
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From: Napa Ca, United States
Would the O2 sensors work OK without the catalytic converters? Can't remember if they're positioned before or after the cats. Considering the system from Simply Performance as I've got a handful of pinholes throughout the system.
Last edited by EcbJag; Nov 20, 2018 at 09:24 AM.
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Cheers
DD
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Works just fine. X300's are the oddball cars where the O2 sensor after the converter is the main sensor and the upstream sensor is the check. I have no idea how they make that work, but it does.
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great find Doug,, i was looking to find some but no such luck!
so i made some up close to what you have , but much longer, for custom side pipes, my diameter is 2 1/2" OD, to fit full flow mufflers, and final outlet 5" OD.
yes probably overkill but didnt want any backpressure! hard to see but left side runs under convertor area, ALL 12 cylinders out the right side!
Hey if it dont go fast , make it sound like it does!! i get a lot of remarks about the sound.
ron
so i made some up close to what you have , but much longer, for custom side pipes, my diameter is 2 1/2" OD, to fit full flow mufflers, and final outlet 5" OD.
yes probably overkill but didnt want any backpressure! hard to see but left side runs under convertor area, ALL 12 cylinders out the right side!
Hey if it dont go fast , make it sound like it does!! i get a lot of remarks about the sound.
ron
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From: North Carolina
great find Doug,, i was looking to find some but no such luck!
so i made some up close to what you have , but much longer, for custom side pipes, my diameter is 2 1/2" OD, to fit full flow mufflers, and final outlet 5" OD.
yes probably overkill but didnt want any backpressure! hard to see but left side runs under convertor area...
ron
so i made some up close to what you have , but much longer, for custom side pipes, my diameter is 2 1/2" OD, to fit full flow mufflers, and final outlet 5" OD.
yes probably overkill but didnt want any backpressure! hard to see but left side runs under convertor area...
ron
Ive been meaning to ask you about clearance and routing of your pipes. Got any pics underneath? I’m considering a pair of sidepipes and have been trying to reason out the routing.
It seems unavoidable ( and desirable ) to have them exit right past the wheel well, but that’s also a nice spot to scrape or crush when the tire drops off any lip, pothole, or speed bump. Do you have any issues or do you just drive around such things?
Im considering perfing through the very bottom of the rear of the fender and keeping the pipes bottom edge just below the level of the cars lower edge. Lots of room by the lower sill to fit 3” plus their covers. Doors would just clear the top of the covers. But more work and money that way. Do you have any ground clearance issues?
Last edited by JigJag; Jan 8, 2019 at 06:43 AM.
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it can send a shiver up your back, hair stands up!,, and 60* V12 have been known to produce a paticulerly great sound!
ron
