Date: Mon, 8 Mar 1999 08:45:07 -0800 From: "cutter" <rockhifinopsamet> Subject: Re: turbo exhaust system
Your last statement about too little back pressure is not correct for a turbochrged engine. You can't have too little back pressure for the turbo. Rember the exaust is connected to the turbo, not the manifold directly. The turbo provides the back pressure. Go with a mandrel bent 2.5" eliminate the center muffler completely completely ( it is not a resonator no matter what the parts book says, but a straight through muffler that is curved to fit the space) The stock saab 9000 rear muffler is as good as most aftermarket items. Git one off a Aero if you want a bigger tip. HomePaul wrote in message <19990308084410.20121.00002921nopsamg1.aol.com>... >I'm not aware of an aftermarket exhaust system for the 9000T, but if you can >find a shop that does exhaust work, have them custom bend and install a bigger >diameter exhaust system, while eliminating the resonator (first muffler). > >When the orignal exhaust pipes rusted out on my '93 Aero, I had the muffler >shop replace the entire system from the catalytic converter back with 2.5" >pipe, replaced the resonator with a small glass pack, but am using the original >rear muffler for the time being, as it's still good. When the rear muffler >dies, it's getting replaced with a Walker Dynomax muffler. Even with the >slight changes made to my Aero, I've noticed a slight power increase and no >noise increase. > >If you go with 3" pipe, you might still gain a bit more power, but you will >likely lose low-end torque in the process. > >Paul >
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