Don't get headers,or just get 1 1/2 primarys if your leaving you stock heads.They will only hurt you.If you want a blower or NOS
1 5/8 primarys will work fine,but with stock heads stay away from them.Your valves are too small to handle a bigger header.
Just do the world a favor and stay away from Flowmaster!!!

Thats a resriction right there.
stay with MAC or Dynomax.
Good Luck,Happy Holidays
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88 NOTCH DSS 331CI C-4 BRAKE 4:10'S 11.5-1 DART IRON HEADS X-CAM 1.7 ROCKERS 8PT. CAGE BEST 10.9@125MPH 100% STREETALBE TO ME!!!