Used a manufactured exhaust system for my 1986 9000 Turbo. Is now 3.5" straight through, one banger box, old cat, small open design muffler at the end. To that was added : - open the air inflow by enlargening the airbox opening. - dyno tune the engine to suit, cannot use the recommended factory setting any more, but car has a reliable 180bhp now, and is also much easier to drive in heavy traffic. Average fuel consumption is still about 11.5 - 12 litres per 100k. (not sure what the mpg conversion is). All this was done at a turbo specialist speed shop I knew. They specialise in the GTP or showroom class racing preperation for japanese cars in Sydney. (WRX etc.; did a fantastic job). Only drawback is a little more noise. On full acceleration, car sounds a bit like a V8 Chev now, rather than the usual deathly quiet SAAB. Goes like the proveriable barn doors now though. Total cost: About $600 AUS ($= to about $250 US). Try to find a reputable speed shop near you, and see what you can work out. My 9000 is now fantastic on long trips, uses very little fuel (is mostly only just above idle on the open road Return to Main Index
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