Quote:
Originally posted by smh3:
Does anyone know if there is a performance gain by removing the resonator or not? If there is how much? I dont want an exhaust system costing $500 or so, which all exit the rear, getting ripped off he first time I wheel with it if there is no real gain in overall horsepower or torque.
|
There is probably some performance gain. According to dyno graphs and dicussion with three exhaust manufactures, the gains for a complete exhaust is about 8 HP. The SMA/B&B exhaust doesn't have a resonator and Borla and most others do have a resonator with the same performance gains.
One restriction seems to be the bent pipe before the cat. It's not mandrel bend and is crushed somewhat. The crushed portion may have half the cross sectional area as the normal area (didn't measure though).