No longer a Mazdaspeed owner.
They are basically the same thing. From what I've read with the Ford Racing supercharger, the 525hp version keeps the warranty if dealer installed. The 600hp version does not. The calibrated Roush kit puts you around 525hp and keeps the warranty if dealer installed. You can tune ti to put out even more power of course, it just wouldn't be warrantied.
ColoradoSpeed... It sounds great. A little too quiet, though. I'm going to have to fix that.
ColoradoSpeed... It sounds great. A little too quiet, though. I'm going to have to fix that.

2015 Ironman Silver Veloster Turbo - Bone stock and staying that way
1990 Crystal White Miata - Beater - Bignose 1.6L Swap, Robbins Top w/Glass Window, E-Codes, Air Horns, Brembo Rotors
Former Rides:
2011 Kona Blue Mustang GT 5.0
2009 True Red Mazdaspeed3 GT
2005 Flame Red SRT-4
1990 Crystal White Miata - Beater - Bignose 1.6L Swap, Robbins Top w/Glass Window, E-Codes, Air Horns, Brembo Rotors
Former Rides:
2011 Kona Blue Mustang GT 5.0
2009 True Red Mazdaspeed3 GT
2005 Flame Red SRT-4
Who is online
Users browsing this forum: Bing [Bot], Google [Bot] and 84 guests