.d tubing we recommend using either the super competition aero chamber maximum flow ... also be fabricated using either hooker super competition aero chamber mufflers ... maximum flow mufflers super competition turbo mufflers competition ... systems or pages 52-54 for hooker super competition exhaust systems 91 will not ... w-2 heads only 100 system includes two super competition turbo mufflers #21106 and ... crossmember 104 fits cross flow iron duke only 105 hooker muffler #21009 slip-in ... diesel exhaust systems competition super comp exhaust kits race headers super ...