Parts Now Pay Later with
Log In Cart
Log In

Create An Account

Log In Cart
Your Cart Is Empty
Free Shipping Over $299.99

Free Shipping Over $299.99

Orders of $299.99 or more ship free within the continental U.S.

Shipping Policy

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

★★★★★ ★★★★★ 3 Reviews
Blox Racing K-Series Subframe Hard Collar Kit-A1
Images may be for reference only

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

★★★★★ ★★★★★ 3 Reviews
Was: $138.00
Save: $27.60 (20%)

Reward Points

It pays to shop with K Series Parts and our reward points program! For every $1.00 you spend you earn reward points.

They are easy to earn, just log in to your account when you check out. If you don't have one it is free and easy to setup.

They are easy to use during check out. Click on the "Have Reward Points?" on the shipping and payment selection page.

Reward Point Program Details

You earn 2 points for every $1.00 that you spend.

100 points equal a $1.00 discount.

Maximum discount per order is 5% of the order total.

There is no minimum order total to redeem points.

Points do not apply to shipping or sales tax.

Points are not redeemable for cash.

The point value per dollar, points earned per purchase, and order minimum are subject to change.

Earn 221 reward points. Learn More

10+ In Stock

Product Details

Part Number: BXSS-20603
Manufacturer: Blox

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

Due to the manufacturer's price control policy, this item may be excluded from promotions and discounts

WARNING: This product may contain chemicals known to the State of California to cause cancer or birth defects.

Vehicle Fitment

Acura RSX
2002 Acura RSX Automatic 2003 Acura RSX Automatic 2004 Acura RSX Automatic 2005 Acura RSX Automatic 2006 Acura RSX Automatic
2002 Acura RSX Manual 2003 Acura RSX Manual 2004 Acura RSX Manual 2005 Acura RSX Manual 2006 Acura RSX Manual
2002 Acura RSX Type-S 2003 Acura RSX Type-S 2004 Acura RSX Type-S 2005 Acura RSX Type-S 2006 Acura RSX Type-S
Honda Civic
2006 Honda Civic Coupe 2007 Honda Civic Coupe 2008 Honda Civic Coupe 2009 Honda Civic Coupe 2010 Honda Civic Coupe 2011 Honda Civic Coupe
2006 Honda Civic Sedan 2007 Honda Civic Sedan 2008 Honda Civic Sedan 2009 Honda Civic Sedan 2010 Honda Civic Sedan 2011 Honda Civic Sedan
2006 Honda Civic Si Coupe 2007 Honda Civic Si Coupe 2008 Honda Civic Si Coupe 2009 Honda Civic Si Coupe 2010 Honda Civic Si Coupe 2011 Honda Civic Si Coupe
2002 Honda Civic Si Hatchback 2003 Honda Civic Si Hatchback 2004 Honda Civic Si Hatchback 2005 Honda Civic Si Hatchback
2007 Honda Civic Si Sedan 2008 Honda Civic Si Sedan 2009 Honda Civic Si Sedan 2010 Honda Civic Si Sedan 2011 Honda Civic Si Sedan
Honda Fit
2007 Honda Fit All 2008 Honda Fit All

3 Reviews ★★★★★ ★★★★★

★★★★★ ★★★★★
4.67/5.00 Stars out of 3 Reviews
Write a Review
These work!
Michael Acton | August 6th, 2022
These collars are easy to install and they are functional. If you have dropped the sub chassis in your RSX these will center the bolt holes so you can get a proper alignment. A bit pricey but they work. I gave 4 stars because the instructions were backwards in that the collars designated for the front were indeed for the back and vice versa.
Just for peace of mind
Mike Satke | March 21st, 2014
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.
subframe kit
Corey Ganoom | September 3rd, 2013
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.