Progress Tech 89-91 Civic Civc Si EF CRX Coilover Series II Kit FR 550lb RR 550lb Factory Top Hat

1989 - 1991 Honda Civic
1989 - 1991 Honda Civic Si
1989 - 1991 Honda CRX

These new systems have been redesigned with improved shock dampening rates, modern foam-type bump stops, and less part content for a simple and durable sport suspension system. This is a perfect system for street performance, new track day and autocross enthusiasts, as well as project cars with engine swaps.

We now are listing EIGHT SPRING RATE COMBINATIONS for our Competition Series II (CS2) coil-over systems for these popular Honda/Acura platforms. Here is some help SELECTING YOUR SPRING RATE combination, all are noted by (front/rear):

B&K-SERIES/Twin cam applications

550/550
Good for track cars equipped with a front end spoiler or splitter. Also for street cars running super-wide wheels & tires and low ride heights. At this point, you should know you are signing up for a huge compromise in ride quality. Very stiff!

** STREET-SPORT
SQUARE setups (550/550)
These setups are a compromise between ride quality and all-out handling. Some impact on ride quality makes for less understeer and faster vehicle response. The stiffer front springs also help prevent bottoming out. This combination is plenty stiff, and NOT recommended for true daily drivers (TDD) on poor roads, or drivers rolling a lot of commuter miles. Good for 'fun cars' driven by more experienced drivers.