Originally Posted by NAVAG
That was the direction I was headed. I was going to drill out the restrictor plates to about 1/2" and put them back in after the cat deletes. The ones that came with the H-Pipe look like they have about a 1/4" hole in them. I was going to start around 3/8" and work my way up. The restrictor plate might be too thin gauged to drill a bigger hole and not have any rattling. This is a good option. The GT500 mufflers are the ones I keep going back to when I'm shopping around.
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I just went ahead and purchased the 5/8" plates from BOM, so hopefully I don't want to go smaller...lol. If I do, then I will have to order new plates, or I can drill out the block off plates I have. lol