Can You Make A Single Exhaust Into A Dual?

Can You Make A Single Exhaust Into A Dual? Answer: Removing the Y pipe and converting your truck’s current “single” exhaust system into a “dual” system will cause a smog check failure. The smog technician will consider the modification you’ve made as a “tamper”. On a 2003 true dual exhaust is perfectly legal. Is single

Does My Bike Need Retuned After Adding Cobra Exhaust?

Does My Bike Need Retuned After Adding Cobra Exhaust? Tuning is required for a full system exhaust because they improve the flow of gases in your motorcycle significantly. Thus, increasing the amount of oxygen in the combustion chamber. You need a tune – mainly to increase the amount of fuel injected into the combustion chamber.