i think this is what you want but ever since i saw this on the internet i look at the mufflers of cars that sound boosted and guess what.....half of the cars i look at have these clip things hanging out of the them where they bolted the fake blow off valve on, so i just look at them then look at the muffler and laugh while i walk away. they are left feeling like an idiot and you leave knowing your car can beat the shit out of theres.
http://cgi.ebay.com/ebaymotors/Malib...27223202QQrdZ1