In 2007, we were looking for a coilover system for the 2006-2011 Honda Civic to match with Koni shocks, and we purchased a Ground Control coilover setup with full intentions of using it.  Ground Control products are always good (we've used them on the 88-00 Civics an Integras for years with exceptional results.  Still, in the case of the 06-11 Civic, we decided to take a different design approach that has resulted in an improved coilover product, albeit at a higher cost.  Below is a list of differences between our RedShift Coilover and the Ground Control Coilover, and you can make the decision for yourself.  We are happy to provide you with and support either product.

Item

Ground Control

RedShift

Front Spring

5"

6"

Front Coilover Adjustment Sleeve

2.9" tall and sits on stock lower spring perch which has a slightly uneven contact

4" tall and sits perfectly on stainless steel ring where stock lower spring perch used to be and is supported by the metal shock's upper ring; so perch is very solid.

(or can sit on the spring perch if requested)

Front Stock Lower Spring Perch

Must Retain

Definitely best if removed

but can retain if necessary

(please specify when ordering)

Front Upper Spring Perch

2.5" ID spring adapter that sits below stock bearing.

2.5" spring adapter that replaces lower half of stock bearing and locates top of spring 7/8" higher than the GC adapter (allowing for a 1" longer spring)

Rear Adjustment Sleeve

Bolted to lower control arm, which adds un-sprung weight (bad).  Some concern for spring falling out of perch.

Bolted to chassis.  No additional unsprung weight, and very little concern for spring falling out.

ASR Camber Plates

Can be added for $369 (ASR camber plate sale price).

Can be added for only $319 because it replaces cnc parts in the RedShift kit that reduce the cost of the coilover kit.

Coilover Price

$409 shipped

$549 shipped

($618 if you include our cost to complete fabrication on front Struts, i.e. modify strut for Koni insert and remove lower spring perch)