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  • Sibidill ·
    Hey I read your post about the invidia header with a hfc.
    I have the q300 and want to buy the header.
    Is there different versions of it because some sites show it with a flex pipe and others with a test pipe which id want for the hfc?
    JEBSi · ·
    There is no flex pipe which is why you need a new solid rear torque dampener mount. Weld in a 2.75" hfc.
    I got my invidia header from procivic or hardmotion.com if that helps. There is only one invidia header for our cars.
    09RRsi01826 ·
    i saw you replied on a post about blackworks coilovers. just had mine installed yesterday, and set it to its lowest height in the rear. i still have about a 2 finger gap. any idea on what we might have done wrong?
    JEBSi · ·
    Shrink the overall length on the damper and shrink the spring seat so the overall length of the seat and spring is shorter or shortest. Then you probably have the jack up the rear control arm to attach the bottom damper bolt which can result in a lot of preload.. Doing both of those is as low as you can go on any setup.
    JEBSi · ·
    Installed rear tein flex z coilovers with edfc today. Confirmed seat and damper lengths with recommended. 14.7 inches from the top of damper cartridge, not the rod, to center of bottom bolt with tape measure. Then tightened to torque. Spring seat set to 40mm with digital caliper. 44mm recommend but preload was starting to increase too much. Ended up a little more than half a finger gap.
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