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Vehicle Information: Year: 1993; Body Type: Coupe; Total Mileage: 15000;

I recently acquired a bone stock RSA to replace a modified RSA that had a Cup bypass for the primary muffler, modified airbox and I suspect a chip. The old RSA definately had more torque and horsepower than the new one for obvious reasons.For the new RSA I am contemplating a GLH header and exhaust system for less weight and it is emissions compliant. I am not bothered by the expense. Having read all of the 964 posts on tuning, I know you are going to recommend a dyno session for evaluating each modification, but I want to get a strategy outlined prior to getting on the dyno.What are your thoughts about the effectiveness of a mass airflow sensor coupled with the GLH exhaust system and light weight flywheel to be added later? What is the best approach to get the appropriate chip to best tune all of these mods.Finally, do you recommend a throttle body modification and high pressure fuel regulator to eliminate any fuel delivery restrictions?Total Mileage: 15000Car Use: Combination Street and Track

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