Modern Automotive Performance
Modern Automotive Performance
  • Spec-R Sport Lowering Springs for 2008+ BMW M3 E90/E92 by Swift - Modern Automotive Performance
  • Spec-R Sport Lowering Springs for 2008+ BMW M3 E90/E92 by Swift - Modern Automotive Performance

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    Swift Spec-R Sport Lowering Springs | 2007-2013 BMW 335i (4X905R)

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    PART# SWI 4X905R

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    Spec-R Sport Lowering Springs for 2008+ BMW M3 E90/E92 by Swift - Modern Automotive Performance

    Swift made Sport Springs keeps the quality ride you get from the showroom, and adds improved handling and lower ride height for driving enthusiasts and style minded drivers who demand only the best.

    From HPDE events to SCCA competition, Swift Spec-R Sport Springs are made for the track enthusiast looking to take their vehicle to the next level.


    • Front Drop: -1.0 inch
    • Rear Drop: -0.8 inch

    Swift Spec-R Sport Springs were engineered with 3 characteristics in mind.

    1. Modified ride height compared to Sport Springs to maximize optimal suspension geometry.
    2. Further increasing the spring rate to enhance overall performance. The increase in spring rate is based on the upper limits of the vehicles factory shock valving.
    3. Maintaining optimal comfort level for street use.

    Spec R springs are wound with the same engineering and material as our sports springs. With the exception of stiffer rates and slight change in ride height; you can expect the same characteristics as our sports springs.

    Customer Reviews

    Based on 30 reviews
    Would buy again

    I installed these on my Evo 8, overall very satisfied with them. Stiffened up the ride quality a little bit, but not terribly. Great quality, fast shipping.

    works well with Bilstien B8 on Fiesta ST180

    I have used many suspension setup on this car, BC BR, B14, B8 with pro kit, sportline, and finally come to this setup B8 with Swift Spec R.

    simply saying. the best performance and comfort overall.

    unless it is a very rough road with depression surface, or pit cover, it works perfectly. giving you the smooth ride quality with very good supporting to corner in every speed. remark, not sure why, but it works magically very comfort on the gravel road, better than the Pro kit a lot.

    only con in this setup is about the rear spring. a bit too high if consider ride comfort. 3.8K. but it gives you a bit fun and help in cornering.

    2014 MR on Bilstein Strut

    Drop was okay, went from a four finger to about a two finger. Have only scraped on oversized speed bumps. Meh. Definitely better than stock, but still should have got Fortune 500 coils

    Evo x swift sport springs

    I drive a 2014 evo x and wanting to lower the car but can't afford coil overs and beside, I m a type a guy that likes to set and forget about it. Mainly daily and driven a few auto cross here and there, nothing crazy. A shop I get my car service recommended swift sport, after install the car is a different animal, handles great, very responsive, more confident and main thing - not bumpy all and great stands. Car lower about 3/4 of 1" and 1/2" on the rear. Wife approved and she is very picky.

    Good Springs

    These springs lowered my car a good amount for daily driving. They left about half an inch of wheel gap. Ride was stiffened up but not to harsh on bumpy roads.