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  1. 2010-13 Mazdaspeed 3 Engine and Performance
  2. 2010-2013 Mazda 3 Engine and Performance
    I order this BVP valve,to replace "El cheapo plastic valve:Racing 1 has good reviews : http://www.streetunit.com/Turbosmart_Bypass_p/ts-0997-1009.htm
  3. 2010-13 Mazdaspeed 3 Engine and Performance
    Just installed a CP-E Xcel CAI & CP-E DISI Nviscid Pipe and it seems like I have lost a little torque during all linear band of acceleration. Is this normal with the mods I have listed in my signature field?? HP seems better as far as keeping acceleration up to 5600 RPM's, but I feel like I...
1-3 of 4 Results