1.6 RR's and Springs...
 

How deep is this install? Approx time??? What kind of gains would I see on a 6# blown car with all the bolt-ons except of course RR's and a new WP? Are there any trouble spots? Special tools I need (other than a spring compressor)? Any special parts or any special cases??? I just want the scoop on these because on modded cars they seem to produce nice results.