Pacesetter Exhaust help
You will also need the O2 simms to replace the rear O2 sensors or you can use tuning to turn them off.
LOL this one isn't even remotely close to the correct forum. Nice job.
Extensions are always needed, as are o2 simms unless you have them tuned out.
If you have cats, could could also always get new o2 bungs installed (a few bucks each at any exhaust shop), and use your existing o2's.
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Oops.