INSTALLING NEW 2.25" EXHAUST PIPES FROM FRONT TO REAR. NEED TO KNOW WHT IS THE BEST" MUFFLER "SELECTION FOR MY 70 GTO WHICH HAS THE 400//350 HP, WITH A RAM AIR 111 CAM ? i PREFER 3 CHAMBER MUFFLERS ONLY BECAUSE OF THE NOISE LEVEL AT HIGHWAY SPEEDS!! CAN ANYONE LEAD ME IN THE RIGHT DIRECTION ON WHICH BRAND NAME, TYPE TO USE FROM PAST OR CURRENT EXPERIENCE??
