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Product Number 10140712
The Mounting Flange and O pening have the same dimensions as the GReddy blow-off valve TYPE-RS
11 hours *including ECU reprogramming
exhaust amount: 3800cc
EJ20 Year : 2017
GReddy Performance Parts SUPREME SP HONDA CIVIC SI COUPE 12-15 - (10158209 / 11050108) Product Number 10140712The Supreme SP for the 9th generation, (FB) Civic Si features our signature GReddy layout, styling and sound, with new revised piping diameter. It is designed to be compatible with both Si models; coupe and sedan (using the optional 11050108 adapter.) The straight through resonator and specially made oval muffler with off set extended tip allows the system to follow the Civics bodies lines and help reduce drone and high pitch frequencies. It also
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