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Horizontal Motorsports Dyno PullsMost makes and Models Supported (Call the shop to verify)3-pulls of..
HMS Cylinder Head Porting ServicesGasket Matched PortsSmooth TransitionsImprove Head Flow by up to 3..
HMS Speed Density Conversion KitAem 3.5 Bar Map SensorGM Intake Air Temperature SensorPlug N Pl..
HMS Stage-5 Extreme Duty Longblock FeaturesALL NEW PARTSIAG Closed DeckIAG Pinned MainsIAG..
HMS Stage-2 Shortblock FeaturesOEM STI CrankshaftOEM Reconditioned STI Case HalfsHMS Forged PistonsO..
HMS Stage-3 Medium Duty Longblock FeaturesALL NEW PARTSHead Stud Kit IncludedHigh Performance Coated..
HMS Stage-3 Medium Duty Shortblock Features
ALL NEW PARTSHigh Performance Coated BearingsOEM STI ..
HMS Stage-4 Heavy Duty Longblock FeaturesALL NEW PARTSARP 625+ head studs 11MMARP Case boltsHigh Per..
HMS Stage-4 Heavy Duty Shortblock Features
ALL NEW PARTSHigh Performance Coated BearingsClosed De..
HMS Stage-5 Shortblock Features
ALL NEW PARTSARP Head Stud Kit INCLUDEDHigh Performance Coated Be..
HMS TGV Delete HousingsHand Port and PolishedGasket MatchedImprove Intake Flow by 12%Improve Turbo S..
HMS V-BAND Rotated Turbo KitPrecision Hand Tig Welded from start to finish in houseMade in the USADe..
Stage-1 Shortblock Features
ALL NEW PARTSOEM CrankshaftOEM Case HalfsOEM PistonsOEM Connecting Ro..
Horizontal Motorsports Standalone ECU Tuning powered by #stevetuned**THIS IS NOT AN E-TUNE**Most mak..
Horizontal Motorsports Stock ECU Tuning powered by #stevetuned**THIS IS NOT AN E-TUNE**Subaru Based ..
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