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New down pipe or fix mine?

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Old 02-27-2013, 11:55 PM
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New down pipe or fix mine?
OK two points I need to make:
My car has a hahn cat-less down pipe with a electronic exhaust cut out.
The cut out is not fully closing tightly so it rattles and is extremely annoying.
Now I have two questions:
Could the cut out not fully closing be skewing my fuel trims? They are off by 7-11% depending on the day. (stock tune, bolt ons, stock intake)
Either way should I just remove the cut out and have a piece of pipe welded in or should I just buy a new cat-less down pipe?
Thanks guys,
Dustin
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Old 02-28-2013, 01:01 AM
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bump
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Old 02-28-2013, 12:45 PM
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Leaky cut out before 02 sensor-likely to cause fuel trims to skew
Leaky cut out after 02 sensor-probably not causing trims to skew but may if it is close enough
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Old 02-28-2013, 07:46 PM
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Cut outs always end up going bad. Get a longtube....
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Old 02-28-2013, 07:50 PM
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Originally Posted by BLKLS
Cut outs always end up going bad. Get a longtube....
can't. he's an lnf.

Just delete the cutout. If you think it's going to be a hassle, it's like $150 shipp brand new from zzp IIRC. Also, if you wanna go this route, there is someone in the classifieds selling a catless dp for $135 shipped.
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Old 03-01-2013, 06:14 AM
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Lol, missed the LNF part. Don't I feel like a dummy.
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Old 03-07-2013, 02:45 PM
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Sorry for leaving you guys hanging lol, we got the car up on the lift and saw that 3 screws fell out of the cut out so the motor was just spinning itself instead of closing the cut out so we just fixed it up.
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