Picking the right kit for your Chrysler comes down to three things: the badge on the trunk (300, 300S, 300C or SRT-8), the model year, and whether the car is AWD. We carry thirteen kits. They change at the 2011 model year, and BC Racing is listed first in both groups.
Animated illustration. It shows where coilovers sit on a car, not your exact kit. Depending on the car and the kit, coilovers can lean forward or back or stand straight up, and some cars use a separate spring and shock in the rear. Your ride height depends on the kit and how it is set up.
Three things decide the kit: badge, year and drive
Here is how each one changes which kit fits.
The badge
From 2011, BC has one kit for the 300 and 300S, another for the 300C, and one for the SRT-8 too.
The year
Most kits change at 2011. The exception is KW's 4WD kits, which fit 2005 to 2022.
The drive
BC and Ksport sell AWD kits for the early cars. KW has separate kits for 2WD and 4WD.
BC and the 300
Five BC kits for the 300
BC Racing makes Chrysler 300 coilovers in four series: BR, DS, ER and ZX. BR and DS come on all five BC kits. ER and ZX come on the two 2011 and later kits named "Extreme by Default". Free shipping on BC Racing kits in the continental US.
Four BC series, two of them on the newer cars only
Every BC kit comes in BR and DS. The 2012 to 2014 300C SRT-8 kit comes in those two only.
BR
A single knob adjusts compression and rebound together over 30 clicks.
DS
It has BR's single knob, plus a digressive piston for firmer body control.
ER and ZX, "Extreme by Default" kits
ER is an upright shock with a separate oil reservoir. Compression and rebound each set on their own over 30 clicks. ZX is what BC calls its "most track-tested" series.
Four of the five BC kit names say "Swift Front Only". To pair Swift Springs with BC Racing coilovers, order through the Custom Build for BC Coilovers page and ask us about the rear.
Also for the 300: KW and Ksport
Two more brands make kits for this car. Call 1-800-460-9106 if you have questions on either one.
KW has five kits. For the early cars, KW splits them into 2WD and 4WD, then V6 and V8. The 4WD kits fit cars through 2022. One 2011 and later kit fits 2WD cars without electronic suspension.
Ksport has three kits: AWD and rear drive kits up to 2010, and a rear drive kit from 2011 on.
Which kit fits how you drive, from the highway to an SRT-8 track day
Highway cruiser
Ask us about ride height for long highway drives.
Kits to look at: BC Racing DS, Ksport, KW
AWD through winter
Pick the drop with snow and potholes in mind.
Kits to look at: BC Racing 300C AWD (to 2010), KW 4WD, Ksport AWD
SRT-8 track day
Set the ride height before your first session.
Kits to look at: BC Racing SRT-8 kits, BC Racing ZX or ER (2011 on), KW
All thirteen Chrysler 300 coilover kits, newest first
The kits are split into two groups, one card for each kit, and each card shows the full kit name.
Notes in BC kit names: "Swift Front Only" means the optional Swift spring upgrade is offered for the front springs only on that kit. "Extreme by Default" means the kit ships as BC's Extreme Low version as standard, built shorter for a lower drop.
300, 300S and 300C from 2011
Platform: Not in the kit names
BC Racing kitThe BC Racing coilover kit listed for the 2011 to 2022 Chrysler 300 and 300S. Photo: BC Racing.
Before you choose: BC has separate kits for the 300 and 300S, for the 300C, and for the SRT-8. Two BC kit names say "Extreme by Default". Call us before you order one. KW's kit is for cars without electronic suspension.
BC Racing kitThe BC Racing coilover kit listed for the 2005 to 2010 Chrysler 300C. Photo: BC Racing.
Before you choose: If you need 2005 Chrysler 300C coilovers, first pick rear drive or AWD. KW then has kits by engine, V6 or V8. KW's 4WD kits cover 2005 to 2022, so they also fit later AWD cars.
300 or 300S, 300C, SRT-8 (BC); electronic suspension (KW)
BR, DS, ER, ZX
2005 to 2010
2005 to 2010
RWD or AWD (BC, KW, Ksport); V6 or V8 (KW)
BR, DS
Before you buy: what 300 owners run into
The 300 is a big rear-drive sedan with a following among stance and custom builders, but owner reports on coilovers are mostly about wheels and fitment rather than suspension faults. The pattern that does repeat, on the first-generation LX car, is worn front suspension parts, so check them before you install.
Worn front tension struts, tie rods, ball joints
First generation 300, 2005 to 2010 (LX)
Owners on complaint sites report worn front tension struts (lateral arms), tie rod ends, ball joints and upper control arms on 2005 to 2010 cars, some before 50,000 miles. One owner on DodgeForum cured a shake under braking with new tension struts. Worn front links cause shimmy and clunks that coilovers will not fix.
Before you install: Check the tension strut bushings, tie rod ends and ball joints for play when the front end is apart, replace worn parts, then align the car.
The 300 story
Rear drive returns to Chrysler
Cars.com described the 2005 change this way: "Instead of front-drive, like all Chrysler passenger cars have had since 1990, the new 300 has rear-wheel drive."
2005
300 and 300CV6 power was standard on the 300. The 300C used Chrysler's 5.7 liter Hemi V8, rated at 340 hp.
2004
AWDCars.com reported an all-wheel-drive version due near the end of 2004.
2005
SRT8This was a 425 hp Hemi V8 edition, scheduled for spring 2005.
Rear drive or AWD is still the first question for the early kits.
Common Chrysler 300 questions
My 300 is a 2012. Which group is it in?
It goes in the 2011 and later group. Kits change at 2011, apart from KW's 4WD kits, which run 2005 to 2022.
What does "Extreme by Default" mean?
The kit ships as BC's Extreme Low version, built shorter for a lower drop. Two 2011 and later 300 kits have it, so call us first.
Can I put Chrysler 300 coilovers on an AWD car?
Yes. BC and Ksport sell AWD kits for 2005 to 2010, and KW's 4WD kits fit cars through 2022.
Which BC Racing series can a 300 have?
BR and DS come on all five BC kits. ER and ZX come on the two "Extreme by Default" kits from 2011.
Do 300 and Charger kits interchange?
Only if the kit name says so. Every kit here is made for the 300, so order the one for your car.
What is the warranty on a BC 300 kit?
BC Racing North America currently lists a two-year limited warranty on full kit orders, subject to its warranty terms. KW and Ksport have their own terms.
