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  1. O

    Stock exhaust manifolds

    While driving the Duster I noticed it was a little louder than normal (what's normal) :scratch: Anyhow on the passenger side exhaust manifold has a bimetallic spring and rod that popped out of the manifold. Is this a heat riser set up ?? Or is it some kind of smog equipment for emissions...
  3. O

    Exhaust Tipped

    Ran into some extra money and goung to replace the entire exhaust system. My tailpipes, 70 Duster 340 curve down before the bumper. I prefer going straight out the back under the bumper. I want to keep the car original as possible. What were the factory tailpipes curved turn downs or straight...
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    Long tube headers or stock manifolds?

    I picked up some brand new hooker 1 5/8 th long tube headers for my 340 duster, a chevy guy told me the stock exhaust manifolds on my mopar will flow just as well. I never heard that before any suggestions? :?: :?:
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