CorkSport Coilover Whitepaper (CoiloversWhitepaper.pdf, 450 Kb) [Download]
Will these work for a 2015 mazda 3 2.5 liter?
It will not, it fits the 2004-2012 models. We are working on more suspension options for the 2014+ models.
Will an adjustment of the ride height on the front struts or rear coilovers change the amount of suspension travel? Also, will this product work on a 2014 Mazda 3 I Sport?
By lowering the springs you will decrease the suspension travel. To lower the car and keep the travel you would need to raise or lower the mounting points of the coilover itself.
If everything else on my 2013 Mazdaspeed3 is left stock when it comes to the suspension and wheels, will I need to do anything that ould alter the state of the car. Meaning if I took the suspension setup off and reinstalled the stock one, would you be able to tell it had one on there. I do not plan on making it super low. I just want something like 1.0 in the front & 1.5 in the rear.
If you do not drill out the shock towers for the camber plate adjustment then yes you could put the stock parts back in when you needed and no one would know.
I wouldn't need to buy new springs for the front or back, correct?
Springs are included in the Coilover kit.