I have a 2003 coupe and im putting on 25mm spacers all around (4x)
do these spacers reduce handling/ camber/ anything? what are the downfalls of using spacers?

 

The only neg thing I have found is that I need 30mm in the rear. Other than that they are great. Just use lock tight when mounting the spacer to the hub. You really never check those, so the lock tight will make it stay in place.

 

Just more weight added to each wheel. Depending on you wheels and tires, you may have to roll your fenders.

Other than that, great mod.

 

Ive had them on for a year and no problems at all... hope I didnt just jinx myself.

 

They do have some side effects. Keep in mind that you are making the track width of the car wider, so you are affecting the scrub radius, and therefore there will be some dynamic camber and toe changes, possibly requiring an alignment. However, at the very least, by using the same size spacer F/R, you don't alter the track width difference. Using different size spacers F/R would change handling characteristics. For instance, running a wider track width in the back (more than 0.5" wider than the front) could lead to increased understeer.

 

i wouldnt track the car with spacers