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Thread: 2002 Express Van 5.7 Dual Exhaust to Single Exhaust.

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  1. 03-03-2024 #1
    Fast355
    Fast355 is offline
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    This exhaust matches the open loop only catless L31. My 2003 L31/5spd 4x4 GMT800 Sonora had the same type of setup but did use front 02s only. Factory EGR deleted, LS truck airbox and 85mm MAF on that one.
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    Last edited by Fast355; 03-03-2024 at 07:25 AM.
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