Flowmasters

Yeah, your low end torque should suffer some. But you don't need (& I don't recommend) 3" mufflers and exhaust tubing. That's too big, especially since you still basically have a stock motor. Do you have smog laws or anything out there in TX? Cause your car is going to be loud as hell. Might attract Johnny Law a little more than you'd like. I say stick with your current mufflers.