i have the greddy sp, UGLY, too big, would take a watermelon to stuff these things,,, hows monza? im thinking of going back to stock, how hard is it to replace the mufflers on the greddy sp though?[/QUOTE
Do not go with Monza! I have heard nothing but horrible things about Pacesetter / Monza products. Heard they are ok for a year or so and deteriorate internally and then start rusting on the exterior. If you are wanting to get rid of the Greddy system because of its looks then there are other ways to retain the stock look without going back to stock. There are some aftermarket ones from Stillen and HKS or you can goto a muffler shop and get a custom setup. Going back to stock equipment might be rather pricey if it is all bought new, custom might be the best option if you want the stock look and sound with spending the least amount of money. Just besure you get resonators installed after the catalytic converters other wise its gonna be insanely loud. Or you can keep an eye on ebay I have seen a few used stock systems on there.