Home > >>>>> REDSHIFT RETAIL CUSTOMERS (CLICK HERE) > Honda/Acura Suspension Parts > 2006-11 Civic > Spring & Shock Kits >

On backorder until mid to late June - "HFP Killer" Suspension Kit - Koni STR.T "Orange" Shocks and Tein S.Tech Springs - Fully Assembled. (06-11 Civic)
On backorder until mid to late June - "HFP Killer" Suspension Kit - Koni STR.T "Orange" Shocks and Tein S.Tech Springs - Fully Assembled.  (06-11 Civic)

Alternative Views:

List Price: $1,029.00
Our Price: $839.00
Savings: $190.00

Product Code

All Genuine Honda Parts?

Genuine OEM Honda Parts?:
Check this box and we will use ALL Genuine Honda assembly parts in building your kit. [Add $109.00]
RedShift Coilover Kit Options

Change spring type (Optional):
Change to Tein High.Tech springs [Add $25.00]
Change to H&R Sport springs [Add $35.00]
Change to NEW Honda OEM Front Springs [and no rear springs] (specify car year/trim) [Subtract -$50.00]
Change to use springs sent in by customer [Subtract -$150.00]

(posted 5/20/2020)
Note that the following items are on national backorder until mid to late June:
- Tein S.Tech springs
- Tein High.Tech springs
- Koni STR.T Orange shocks (front and rear)
Contact us for other options.

HFP Killer Kit, Fully Assembled With OE Aftermarket Assembly Parts

For 2006-11 Civic (ALL)

This kit includes:

  • A full set of 4 Koni STR.T (Orange) Struts/Shocks
  • Tein S.Tech Springs (spring rates approx 15% higher than stock front and rear: 230 lb/in front, 274 lb/in rear)
  • Civic Si 2DR/4DR -1.4" front and -1.3" rear.
  • Civic non-Si 2DR -1.1" front and -0.8" rear.
  • Civic non-Si 4DR -0.9" front and -1.2" rear.
  • Fully Assembled (like a Honda Factory Performance HFP Kit) with New OE Aftermarket Strut Assembly Parts so your install is simple!


  1. Tein S.Tech Springs have spring rates very similar to HFP springs (Tein 1 Year warranty against manufacturers defect or sag).
  2. Lifetime warranty Koni STR.T shocks are seriously impressive. Silky smooth and handles higher spring rates so nicely! As good or better handling than HFP kit and more comfortable than HFP kit!
  3. 1/2" Lower than HFP Kit! 1/4" lower than Eibach Prokit. 1/4" Higher than Eibach Sportline and Neuspeed Sport Springs. This is a GREAT daily driver, all around fun setup.
  4. Fancy Color Scheme is no extra charge. haha!!! Gotta love the color combo.
  5. Only $50-70 more than HFP Kit. HFP Kit only covered your car's new car factory warranty (3/36,000) or 1 year parts warranty.
  6. If you plan to autocross or track your car or just want a bit more performance, then please consider the Neuspeed Sport Springs on Koni STR.T/Sport shocks or Koni Sport shocks all around. But if you are looking for a comfortable and more-fun-than-stock street car, this kit is the best option available for the price!

Other way to purchase this kit:

Replace Aftermarket Assembly Parts with the OEM Honda Parts (+$100 approx). Do you need the OEM Honda parts upgrade? That's up to you. 90% of our customers opt for the aftermarket parts, and in many years of using them, the aftermarket parts have been excellent (equal to the OEM Honda option). So, if you want Honda OEM parts, that's fine because they are excellent, but if you don't mind aftermarket parts and want to save a little money, you can be confident that the aftermarket parts will serve you well. The OEM Honda assembly parts have a 1 year warranty where the Aftermarket parts have a lifetime warranty.

Often customers ask if they need to replace there original strut assembly parts (and if ordering the fully assembled kit therefore is a good idea). Our answer is that if you have over 60k miles, then it's a good idea. If you have over 100k miles, then definitely. Always check your dust boots, no matter what, because those sometimes go bad fairly quickly (often by 60k miles).

Do you need camber correction with this kit?

You don't need front camber correction. Stock front bolts are fine to get you back to stock alignment assuming your alignment is correct now.

The rear is where you'll want something to correct camber. Stock camber is already enough to cause a tire wear issue. When you lower the car, the rear cambers more. and that's true for sure on the HFPKiller setup (lowers about 1.3"). So, I would recommend one of the SPC rear camber arms they are good quality that isn't too expensive.... the forged steel SPC arms are approx $220/pair. If you want to go all out, then check out the SPC Aluminum arms that are light and have spherical bearings for around $350.

Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 28 Write a review »

  0 of 0 people found the following review helpful:
5 of 5 New car ride again April 7, 2020
Reviewer: Dan C from Algonquin, IL United States  
Chris was great to work with over the phone.  The product was packaged excellent for shipping and included all the hardware to install the new struts assembly and shocks.  It was easy to install and gave the same factory ride height that I wanted.  The car feels like new and the Koni's really dampen nicely but not too harsh.  I would purchase these again.

Was this review helpful to you?

  0 of 0 people found the following review helpful:
5 of 5 Great Setup, Worth the Wait! March 4, 2020
Reviewer: Tommy from GA  
I went with the Tein High Tech springs per Chris' recommendation for a DD and so that I wouldn't need to get adjustable rear camber arms. I, unfortunately, ordered at a time where he was backed up on orders, but I have to say the wait was well worth it. The slight drop is perfect for what I was looking for, and the ride quality is buttery smooth and a little more responsive compared to the stock Si struts. I also need to praise Chris for keeping in contact the entire time to inform me on the status of the order. Great stuff and great service!

Was this review helpful to you?

  0 of 0 people found the following review helpful:
5 of 5 Great Product for a Daily Driver October 22, 2019
Reviewer: Christopher Salas from Bolingbrook , IL United States  
Coming from two blown front factory struts this is a great upgrade for the price. The car is so planted on tight turns and the drop isn’t to low. Thank you Chris!

Was this review helpful to you?

  0 of 0 people found the following review helpful:
5 of 5 With Tein H Tech October 5, 2019
Reviewer: Eddy from Torrance, CA United States  
My oem shocks were leaking and instead of replacing with oem parts i found this kit. The assembly is top notch, and installation went without problems. My Si performs a lot better - some surfaces where I used to wobble or feel unstable is now nice and solid. The car feels more planted around corners, yet the ride quality is similar to stock. I got the H techs because I didn’t want to go for that dropped look. My car feels a lot more fun to drive - I just wish I knew about this sooner!

Was this review helpful to you?

  0 of 0 people found the following review helpful:
5 of 5 September 12, 2019
Reviewer: Steve from West Allis, WI United States  
With this setup my car feels great, thanks!

Was this review helpful to you?

View All Customer Reviews