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Oldsman · 11-02-2009, 03:17 PM

there is the upstream at the ed of the exhaust manifld and the down stream is just after the cat.

11-02-2009, 03:17 PM	#11
Oldsman Owner Join Date: Nov 2003 Location: Joliet, IL Posts: 19,932	there is the upstream at the ed of the exhaust manifld and the down stream is just after the cat. __________________ 72 442 "THE BEAST", 99 Alero - OSV Replica w/ original OSV parts, HURST Dual/Gate Shifter Beware of the BackStabber