Blox Racing K-Series Subframe Hard Collar Kit
Part Number: BXSS-20603

Blox Racing K-Series Subframe Hard Collar Kit
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    Will It Fit Your Vehicle?


    BLOX Racing subframe hard collar kits are easy to install and provide immediate improvements to the chassis.

    Installing the hard collar kit will help eliminate any play between the chassis and subframe, thus increasing vehicle stability and suspension precision.


  • 2002-2005 Honda Civic EP3

  • 2002-2006 Acura RSX DC5

  • 2006-2011 Honda Civic FD/FG

  • 2007-2008 Honda Fit GD3

  • Specifications

    Brand: Blox
    Part Number: BXSS-20603

    Vehicle Fitment

    Acura RSX

    Honda Civic

    Honda Fit

    2 reviews for Blox Racing K-Series Subframe Hard Collar Kit

    5 out of 55 out of 55 out of 55 out of 55 out of 5

    5 out of 5.0

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    5 out of 55 out of 55 out of 55 out of 55 out of 5

    3/21/2014 by Mike Satke

    Just for peace of mind

    I installed these on my 02 RSX Type S for peace of mind. I Had changed the timing chain and clutch last April. Rather than fighting with the tight confines of the motor and body panel, I just dropped the sub frame, with the engine on it, on a set of jack stands and raised the car on the lift. It was a piece of cake working on both ends of the drive train like that. What got my attention was the method written up in the shop manual about getting the sub frame back in the same spot. These collars, installed a few weeks ago, position the frame using the bolts to center everything. Where the peace of mind comes in, is that the frame won't shift if the suspension takes a hard hit from a pot hole or other road hazard that occur in the real world. I had to get the installation instructions from the Blox's web site, as they're not included with the collars. The instructions were incorrect for the RSX/DC5. The lower collars they showed going in the rear of the sub frame would not fit the holes, too large, but they fit the front holes just fine. The collars indicated for the front fit the rear just fine. All in all, not big deal, but it was tense for a minute or two. After all was reassembled and re-aligned, all was good, but no better or worse than before. The collars are perfectly machined and it's just a shame they can't be seen. Even crawling under the car, you have to hunt for them.

    5 out of 55 out of 55 out of 55 out of 55 out of 5

    9/3/2013 by Corey Ganoom

    subframe kit

    Had these installed the same time I put in the Vibratechnics motor mounts. Same idea as the Spoon Rigid Collar Subframe kit. This product is more affordable than the Spoon version. No issues with fitment.