I have a stock B18C1 (with IAB) that comes out via a DC Sports two piece manifold, Magnaflow catalytic converter and 2.25" stainless steel hose from ebay . I removed the ebay fart can ("N1 style" muffler lol) shortly after installing the SS exhaust. Anyway, I had a muffler with a Summit chamber to replace that muffler, but it made crazy rattling noises when I accelerated hard or hit VTEC. I bought this Thrush turbo muffler as I couldn't find a stainless steel turbo muffler for a decent price, but this muffler tends to "fart" when it hits VTEC (about 4400 rpm). I consider most of this exhaust tuning to be temporary. since i want to build an engine sometime and have a 2.5" or 3" exhaust. I want to buy a "Thrush Hush" turbo muffler instead that has packing/insulation material in the muffler. That should help some.