JE Pistons Ring Sets 99.5 79 130.5 30.7 57.0 8.5:1 -16.5 407 TF | JG4904-3917 CivicSI_2012-2015 Manley Turbo Tuff Billet 4340
Platform notes & fabric story
Description
JE Pistons Ring Sets 99.5 79 130.5 30.7 57.0 8.5:1 16.5 407 TF JG4904 3917 CivicSI_2012 2015 Manley Turbo Tuff Billet 4340 Manley Turbo Tuff Billet 4340 Subaru crankshafts are the perfect crank to complete a stout bottom end build Dyno proven maximum gains of up to 9 whp and 8 wtq and peak gains of up to 4 whp and 3 wtq using 93 octane fuel while maintaining safe AFRs on the stock tune (2015 WRX w CVT)