Home > Subaru > STI 2008-2014 > Exhaust > Manifolds > Killer B Equal Length 4-1 Holy Header EJ Series 2-Bolt 02-14 WRX / 04-17 STI
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Description   Killer B Equal Length 4-1 Holy Header 2-Bolt 02-14 WRX / 04-17 STI The Killer B Motorsport Holy Header was developed using state of the art CAD software & simulations to determine optimal design to increase power as much as possible throughout the rev range. Short as possible primaries with a single secondary significantly decrease header volume allowing exhaust gas pressure to build quickly. Symmetrical 4-1 design maintains high and consistent exhaust velocity as RPMs rise. You can expect faster spool up time compared to long primary/double secondary designs. A difference you will immediately notice in throttle/boost response and the ability to hold more power higher into the revs. Purchase does not include gaskets Does not include up pipe Related Items HKS Stainless Equal Length Exhaust Manifold 2004-2021 STI MAP Subaru 4-1 Equal Length Header (04 - 18 STi) ETS Max Flow V2 Header ( 2 Bolt Connection ) 04-21 Subaru STI MAP SUBARU 4-1 EQUAL LENGTH HEADER 2004-2021 SUBARU STI Our Price: $518.95 Our Price: $1,099.99 Our Price: $1,495.00 Our Price: $1,299.99 Private MFG Exhaust Manifold with Up Pipe - 02-14 WRX / 04-17 STI Killer B Equal Length 4-1 Holy Header EJ Series 2-Bolt SwainTech Ceramic Coating 02-14 WRX / 04-21 STI Tomei Equal Length Manifold and Up Pipe 02-14 WRX / 04-20 STI Perrin Equal Length Header 1.5 inch Primaries 02-14 WRX / 04-17 STI Our Price: $600.00 Our Price: $1,829.99 Our Price: $801.00 Our Price: $1,314.59

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