CONCRETE: 5 sack or 3000 psi Concrete $ 124.00 per cubic yard. 5.5 sack or 3500 psi Concrete $ 127.00 per cubic yard. 6 sack or 4000 psi Concrete $ 130.00 per cubic yard. Additional Cement $ 6.00 per sack of cement. Type III - High early winter mix $ 3.00 per sack of cement. HOURS OF DELIVERY: 6:00 AM - 5:00 PM Included in price of concrete.
Add a sound-amplifying exhaust tip. Exhaust tips with dual walls, flared ends or large diameters may increase the sound volume of the exhaust output. Increase the size of your exhaust pipes by 1/2-inch to 1-inch in diameter.
RE: What makes the exhaust pop and gargle? Oh, and is far as the restrictor plate causing it... the restrictor plate allows the engine to drop rpms fast, as soon as you let off the throttle and that would show or exagerate any popping condition that exists.