How-To: Install 7.5G Rear HFP Underbody Spoiler - Honda Accord Forum : V6 Performance Accord Forums
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Old November 4th, 2012, 01:53 PM   #1
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How-To: Install 7.5G Rear HFP Underbody Spoiler

How-to: Installation of the HFP Rear Underbody Spoiler

Disclaimer: I am not responsible for any errors/damage that may occur to your vehicle, as this manual is being written as a guide. Installation is at your own risk!

Tools Required:
1x Philips Screwdriver
1x Flat-head Screwdriver
1x 10mm Socket
1x Ratchet
1x Bottle 70% Isopropyl Alcohol
1x Microfiber cloth/rag
1x OEM HFP Rear Underbody Spoiler
1x OEM Rear Underbody Spoiler Mounting Hardware
-- 2x Self-tapping Screws
-- 2x Spring Nuts
-- 2x Short Flange Bolts
-- 2x Long Flange Bolts
-- 6x Clip Nuts
-- 4x Recessed Bolts
-- 2x Flange Nuts
1x Roll of Masking Tape
1x Utility Knife
1x Blanket
1x OEM Instruction Manual - Print out page #6 TO-SIZE! 100mm x 100mm









1) Start by removing the rear bumper

-- There are two bolt tabs to be removed:


-- Remove the two 10mm bolts with your socket & ratchet


-- Remove 4 Washer Screws (2x each side)


-- Remove 2 Philips head Screws (1x each side)


NOTE: To save yourself from removing the rear wheels, you can use a tool like this one. It is a small, hand-held screwdriver ratchet. Otherwise, you will need to jack up the rear of the vehicle, support on jack stands, and remove the rear wheels. :thmsup:


-- Remove 2 Clips on the underneath




2) After removal of the rear bumper, use a blanket or bring it inside to prep & install the rear underbody spoiler


3) Prep the rear bumper by cutting out around the exhaust portions.

NOTE: The OEM rear bumper already has the cutout etched into it. If you are using an aftermarket bumper, you will need to use your cutout from page #6 of the installation instructions.





(OEM etched line - trace it with a black sharpie)






4) Okay kids, get out your art supplies! I used big-boy scissors But a utility knife will work too haha Cut out the markings on the OEM rear bumper





-- When finished it should look like this:


5) Prepare the rear bumper for the 6 clips nuts by cutting along the edge to free up room for the clip nuts to easily slide into place. Note the position of the clip nuts:
















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'07 EX-L HFP V6 Coupe w/ Navi - "Tawonda"
Graphite Pearl / Black Leather
(Sold 7/26/17)

'17 Touring HFP V6 Coupe - "Bianca"
White Orchid Pearl / Black Ivory Leather
(Purchased 5/18/17)
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Old November 4th, 2012, 01:55 PM   #2
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6) Install the 2 spring nuts on the bumper's outer edge:





7) Attach a strip of masking tape to the end of the five adhesive backings, and remove 1.5-2" of the adhesive backings. Fold the ends back, and tape them to the front of the rear under spoiler

8) Using isopropyl alcohol on a microfiber cloth, clean the rear bumper where the rear underbody spoiler will attach

9) Position the rear underbody spoiler on the rear bumper and align it properly. Check that the bottom flange of the rear bumper is not over the bottom of the rear underbody spoiler.

10) Install the rear under spoiler with 2x washer screws, 2x short flange bolts, 2x long flange bolts, 4x recessed bolts, and 2x flange nuts on the 2x long flange bolts. Do not tighten the bolts or the washer screws yet.





(Long flange bolts nearest exhaust cutouts w/ flange nut and short flange bolt nearest the rear tire - 1x each side for each)


(4x recessed bolts)


11) While holding pressure on the rear underbody spoiler, slowly & carefully remove the adhesive backings starting in the middle and working your way towards the ends. Using the palms of your hands, firmly press the rear underbody spoiler against the rear bumper, holding steady pressure for 30 seconds.

12) Reinstall the rear bumper (2x 10mm bolts, 2x clips, 4x washer screws, 2x bolt covers)

13) While holding the rear underbody spoiler against the rear bumper, install the 1x self-tapping screw on each side. Make sure the bottom self-tapping screws are threaded into the rear inner fender.



14) Tighten the 2x washer screws installed previously

15) Tighten the 2x short flange bolts, 2x long flange bolts, and 4x recessed bolts





Lastly, ENJOY!!













aznboi128 and invsblduck like this.
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'07 EX-L HFP V6 Coupe w/ Navi - "Tawonda"
Graphite Pearl / Black Leather
(Sold 7/26/17)

'17 Touring HFP V6 Coupe - "Bianca"
White Orchid Pearl / Black Ivory Leather
(Purchased 5/18/17)

Last edited by DreaminAccord; November 4th, 2012 at 11:58 PM..
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Old November 4th, 2012, 02:10 PM   #3
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It's a job well-done, Ben
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Old November 4th, 2012, 09:19 PM   #4
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quality write up bro! thanks!!
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Old November 4th, 2012, 10:50 PM   #5
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Looks awesome man can't wait to get mine
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07 accord ex-l v6 6mt coupe / HFP kit on the way / tein / yakima / TE37
07 accord ex-l v6 sedan
99 accord ex-l v6 / WW kit / tsx retro / Tein SS coils / 08 accord coupe 18"s
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Old November 4th, 2012, 11:59 PM   #6
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Thanks y'all, glad to help!
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Ben

'07 EX-L HFP V6 Coupe w/ Navi - "Tawonda"
Graphite Pearl / Black Leather
(Sold 7/26/17)

'17 Touring HFP V6 Coupe - "Bianca"
White Orchid Pearl / Black Ivory Leather
(Purchased 5/18/17)
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Old November 5th, 2012, 09:35 AM   #7
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Comprehensive, quality write-up/how-to!! Excellent work, Ben! Thank you for this.

BTW, that GP coupe looks great!
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Old November 5th, 2012, 09:51 AM   #8
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Thanks mike!
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Ben

'07 EX-L HFP V6 Coupe w/ Navi - "Tawonda"
Graphite Pearl / Black Leather
(Sold 7/26/17)

'17 Touring HFP V6 Coupe - "Bianca"
White Orchid Pearl / Black Ivory Leather
(Purchased 5/18/17)
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