Click Images for larger view.
I WAS HAPPY WITH THE RESULTS BUT IM NOT THE BIGGEST FAN OF THUNDER HEADERS. LOW END TORQUE WOULD HAVE BEEN GREATLY IMPROVED WITH A DIFFERENT EXHAUST LIKE A FATCAT. THUNDER HEADERS DO SOUND WICKED THOUGH!
BEFORE---2007 FLHX 103 CI 210 CCP
S.E 103 KIT STAGE 2 255 CAMS, STAGE 1 A/F, THUNDER HEADER, PCIII.
AFTER--- 2007 FLHX 107 CI, 3.932 JE/AXTELL 20 DEG REV DOME PISTONS, T MAN ST2 HEADS, 1.94 1.615 1.710 INLET, T MAN 625 CAM CHAIN, WOOD LIFTERS, T MAN 3 STAGE OILPUMP, S/E CAMPLATE, BAILSEY LMR2 SPRING, S/E TAPERED ADJ PUSHRODS, BAISLEY ROLLER ROCKERS, BAISLEY 5O MM TRUE VENTURI T-BODY, SE BACKING PLATE ZIPPERS UPGRADE FILTER, THUNDER HEADER 2:1
10.65:1 215 (CCP HOT) FUEL PRESSURE 58 PSI 2-3% LEAKDOWN WET SUMP TEST = 2 OZ