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#1
07-12-2009, 08:51 AM
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Cat Converters
I have a 1976 450SL. It appears that the cat converters are mounted to the manifolds. However, looking under the car, I see another converter/muffler downstream within the exhaust system. The muffler is at the rear of the car. What is the converter/muffler downstream from the manifold? Thanks for any clarification.
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#3
07-12-2009, 10:20 AM
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move the cats downline...they are the cause of many issues under the hood due to heat.
__________________
 1987 560SL85,000 miles Meet on the level, leave on the square. Great words to live by Were we directed from Washington when to sow and when to reap, we should soon want bread. - Thomas Jefferson: Autobiography, 1821.
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#4
07-12-2009, 11:20 AM
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no cat
Hi there
Just remove the cats, the SL's were designed without them and run much better for that - Euro models haven't got them fitted and I believe even when imported it's only when local regs demand it. Give yourself more power ! Cheers Jim
__________________
Keep your Motor runnin'  Jim's '88 300SL
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#5
07-12-2009, 12:41 PM
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Depending on where you live, if you remove the cats you won't be able to drive the car. I live in BC Canada. and my car needs to go through emisions testing every year. If I removed my cats I wouldn't be able to get insurance, or register my car. Be sure you check your local emisions standards before you make any changes to those systems. Some juristictions are regulated some are not.
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#7
07-12-2009, 02:51 PM
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I may be wrong but I think you need to use 77 up manifolds and header pipes to make the change. There is a '79 450 being parted out on another forum.
http://www.benzworld.org/forums/r-c107-sl-slc-class/1456723-parting-out-79-450sl.html The owner is also a member here. You can PM him and see what he has.
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#8
07-13-2009, 10:34 AM
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if you do keep them , you still have to move them, most muffler shops could do this for you. I have found that muffler work is not fun nor easy, bolts that are hard to access, frozen on ect ect. On a lift with a good torch , the job is easier. The shop here in town charges 20$ to fix most issues on a muffler system, so it is a no brainer for me
__________________
Ron 2015 Porsche Cayman - Elizabeth 2011 Porsche Cayman - Bond,James Bond Sadly MERCEDESLESS - ALways LOOKING ! 99 E320 THE Queen Mary - SOLD 62 220b - Dolly - Finally my Finny! Sadly SOLD 72 450SL, Pearl-SOLD  16 F350 6.7 Diesel -THOR 19 BMW X5 - Heaven on Wheels 14 38HP John Deere 3038E Tractor -Mean Green 84 300SD, Benjamin -SOLD 71 220 - W115-Libby ( my first love) -SOLD 73 280 - W114 "Organspende" Rest in Peace 81 380 SL - Rest in Peace
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