Exhaust and iac question

josh930

New Member
Jan 14, 2006
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NY
I wanted to change out the muffler on the blitz nur spec exhaust system to quiet it down a little. I installed a vibrant ultra quiet resonator and wanted to tone it down even more. I bought a straight through dynomax oval style 3" inlet and two 2.5" outlets. Will this quiet it down alot with the smaller dual exits rather than the one 5" exit on the blitz? I just dont want it to get raspy.

Also, I've read up on the iac problems where the valve gets stuck inside so you block it up and adjust the idle a little higher. Now after I do that, should I leave the connector plugged in or do I leave it unplugged. I dont want the ecu to read the wrong reading and in turn adjusts something else.

Thanks