In my opinion, there are too many kit of TEIN Coilovers. Its confusing and the differences between the kits are so small that in my opinion, TEIN could cut the range of coilover kits in half.
In this video we just cover the main points you should look for in a coilover and then identify which TEIN coilovers match these requirements for each price range
TEIN Coilovers – Top Mounts
Do you need adjustable top mounts?
There are pluses and minuses to both
OE Top Mounts
Much, much, much cheaper to replace. eg 20 dollars versus 200+ dollars
Better ride, small bumps much less noticeable
TEIN Top Mounts
If they are not adjustable, not sure there are any benefits
If they are adjustable for camber/caster, it’s easier to alter the suspension geometry
TEIN Coilovers – Height Adjustment
Height adjustment with spring seat or with bottom mount?
Spring Seat Height Adjustment
Much less likely to make a mistake. Adjustment range much smaller, more or less guarantees your suspension will be working at the optimum height
Downsides, less adjustment, no problem for a track car but if you want your car slammed you may run out of damper travel
Bottom Mount Height Adjustment
Set the height anywhere you want but extremes may cause problems with suspension geometry.
No effect of damper travel when you adjust the height
Easier to make a mistake when setting the ride height ie suspension too high or too low
TEIN Coilovers – Damping Adjustment for Softness/Hardness
IMO, essential. Control how comfortable the car is AND it allows you to adjust the balance of your car between understeer and oversteer
TEIN Coilovers – EDFC (Electronic Damping Control)
Adjusting the dampers from inside the car in nice but it is another thing that can go wrong and it massively complicates the installation of the suspension
TEIN Coilovers – Summary
Check the table in the video, the right column is the S&C Choice coilover kit for each price range
Up to 700 USD/EURO – Street Advance Z (Street Advance maybe)
Up to 1200 USD/Euro – Flex A (Flex Z maybe)
Up to 2000 USD/Euro – Mono Sport (Comfort Sport maybe)
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