All JDC Titanium Products are colored to order. Average processing time is 15-20 BUSINESS days. Click here for details.

STi Turbo & Boost

39 products

Showing 1 - 39 of 39 products

Maximize your Subaru STi’s performance with turbo upgrades from leading brands like TiAL, Grimmspeed, and ETS. Our selection includes turbo kits, boost controllers, blow off valves, and wastegates designed to maximize power and efficiency. Upgrade your STi with high-quality turbo and boost components from JDC!

Don't see a product you think we should carry? Click here to fill out a "New Product Request Form" and we'll see what we can do!

*Please Note* All JDC Titanium products are colored to order. The average processing time is at the top of each page. Estimated order time can vary. Click here for more details

Showing 1 - 39 of 39 products

Save 81%

JDC Titanium TiAL Q Blow Off Valve Hardware

JDC Titanium TiAL Q Blow Off Valve Hardware

JDC Titanium TiAL Q Blow Off Valve Hardware

$ 12.00 $ 63.96

JDC Titanium TiAL MV-R/MV-S Wastegate Hardware

JDC Titanium TiAL MV-R/MV-S Wastegate Hardware

JDC Titanium TiAL MV-R/MV-S Wastegate Hardware

$ 19.99

Save 3%

TIAL Sport Q Vent To Atmosphere Blow Off Valve (Universal) - JD Customs U.S.A

TIAL Sport Q Vent To Atmosphere Blow Off Valve (Universal)

TIAL Sport Q Vent To Atmosphere Blow Off Valve (Universal)

$ 278.95 $ 287.32

GrimmSpeed 4G63 3-Port EBCS (Evo 8/9)

GrimmSpeed 4G63 3-Port EBCS (Evo 8/9)

GrimmSpeed 4G63 3-Port EBCS (Evo 8/9)

$ 129.00

Save 14%

JDC Titanium TiAL QRJ Blow Off Valve Hardware

JDC Titanium TiAL QRJ Blow Off Valve Hardware

JDC Titanium TiAL QRJ Blow Off Valve Hardware

$ 12.00 $ 13.99

Save 3%

TiAL Sport Blow-Off Valve Spring Fits Q/QR BOVs - JD Customs U.S.A

TiAL Sport Blow-Off Valve Spring Fits Q/QR BOVs

TiAL Sport Blow-Off Valve Spring Fits Q/QR BOVs

$ 29.22 $ 30.10

JDC Titanium HKS Blow-Off Valve Hardware Kit

JDC Titanium HKS Blow-Off Valve Hardware Kit

JDC Titanium HKS Blow-Off Valve Hardware Kit

$ 100.00

TIAL MV-S 38MM V-BAND EXTERNAL WASTEGATE | (TIAL-MV-S38MM) - JD Customs U.S.A

TIAL MV-S 38MM V-BAND EXTERNAL WASTEGATE | (TIAL-MV-S38MM) - JD Customs U.S.A

TiAL MVS 38mm V-Band External Wastegate (Universal)

$ 339.00

TIAL SPORT QR BLOW OFF VALVE | (TIAL-QR2) - JD Customs U.S.A

TIAL SPORT QR BLOW OFF VALVE | (TIAL-QR2) - JD Customs U.S.A

TiAL Sport 50mm QR Blow Off Valve With Aluminum Flange (Universal)

$ 265.00

Save 3%

TiAL Blow Off Valve Aluminum Clamp Assembly (Universal)

TiAL Blow Off Valve Aluminum Clamp Assembly (Universal)

TiAL Blow Off Valve Aluminum Clamp Assembly (Universal)

$ 37.84 $ 38.98

TIAL SPORT QR BLOW OFF VALVE | (TIAL-QR2) - JD Customs U.S.A

TIAL SPORT QR BLOW OFF VALVE | (TIAL-QR2) - JD Customs U.S.A

TiAL Sport 50mm QR Blow Off Valve With Stainless Flange (Universal)

$ 265.00

Save 10%

TurboSmart Blanking Plug - JD Customs U.S.A

TurboSmart Blanking Plug (Universal)

$ 10.45 $ 11.61

Save 81%

JDC Titanium Precision 50mm Blow Off Valve Hardware

JDC Titanium Precision 50mm Blow Off Valve Hardware

JDC Titanium Precision 50mm Blow Off Valve Hardware

$ 12.00 $ 63.96

TORQUE SOLUTION THERMAL TURBO BLANKET (TS-TB-LT3) - JD Customs U.S.A

Torque Solution Thermal Turbo Blanket (Universal)

$ 111.10

GrimmSpeed Manual Boost Controller (Universal)

GrimmSpeed Manual Boost Controller (Universal)

GrimmSpeed Manual Boost Controller (Universal)

$ 99.00

GrimmSpeed Turbocharger Coolant Line Kit - Replacement For GS EJ Turbos (04-21 Subaru WRX/STi/FXT/LGT)

GrimmSpeed Turbocharger Coolant Line Kit - Replacement For GS EJ Turbos (04-21 Subaru WRX/STi/FXT/LGT)

$ 50.00

Save 8%

TIAL SPORT QR BLOW OFF VALVE | (TIAL-QR2) - JD Customs U.S.A

TIAL SPORT QR BLOW OFF VALVE | (TIAL-QR2) - JD Customs U.S.A

TiAL Sport 50mm QR Blow Off Valve (Universal)

$ 265.00 $ 287.32

GrimmSpeed Turbocharger Oil Feed Line Kit - Aftermarket Turbos (04-21 WRX/STi/FXT/LGT)

$ 80.00

Save 12%

TURBOSMART BOOST TEE MANUAL BOOST CONTROLLER - JD Customs U.S.A

TURBOSMART BOOST TEE MANUAL BOOST CONTROLLER - JD Customs U.S.A

Turbosmart Boost Tee Manual Boost Controller (Universal)

$ 83.51 $ 95.01

ETS Rotated Turbo Piping Kit (15-20 STI)

ETS Rotated Turbo Piping Kit (15-20 STI)

$ 795.00

GrimmSpeed 3-Port Electronic Boost Control Solenoid (08-21 STi)

GrimmSpeed 3-Port Electronic Boost Control Solenoid (08-21 STi)

GrimmSpeed 3-Port Electronic Boost Control Solenoid (08-21 STi)

$ 129.00

ETS Titanium Stock Turbo Piping Kit (15-20 STI)

ETS Titanium Stock Turbo Piping Kit (15-20 STI)

$ 1,495.00

ETS Titanium Air Intake Kit (15-20 STI)

ETS Titanium Air Intake Kit (15-20 STI)

$ 495.00

Save 5%

GrimmSpeed Chase JB400 Turbocharger (04-21 STi/ 02-14 WRX)

GrimmSpeed Chase JB400 Turbocharger (04-21 STi/ 02-14 WRX)

GrimmSpeed Chase JB400 Turbocharger (04-21 STi/ 02-14 WRX)

$ 1,479.81 $ 1,557.69

Save 5%

GrimmSpeed Overtake BB500 Turbocharger (04-21 WRX STi/ 02-14 WRX)

GrimmSpeed Overtake BB500 Turbocharger (04-21 WRX STi/ 02-14 WRX)

GrimmSpeed Overtake BB500 Turbocharger (04-21 WRX STi/ 02-14 WRX)

$ 1,808.66 $ 1,903.85

Save 31%

Mishimoto Titanium Turbo Blanket (WRX/STi)

Mishimoto Titanium Turbo Blanket (WRX/STi)

$ 83.95 $ 121.09

Save 11%

Turbosmart Gen V WG45 Hypergate 45 (Universal) - JD Customs U.S.A

Turbosmart Gen V WG45 Hypergate 45 (Universal) - JD Customs U.S.A

Turbosmart Gen V WG45 Hypergate 45 (Universal)

$ 395.51 $ 444.39

Save 10%

Turbosmart Kompact 34mm Plumb Back Blow Off Valve - JD Customs U.S.A

Turbosmart Kompact 34mm Plumb Back Blow Off Valve (Universal)

Turbosmart Kompact 34mm Plumb Back Blow Off Valve (Universal)

$ 188.95 $ 209.94

Save 10%

TURBOSMART UNIVERSAL PLUMB BACK BLOW OFF VALVE - 32MM BLACK (TS-0205-1262) - JD Customs U.S.A

Turbosmart Plumb Back Blow Off Valve (Universal) - JD Customs U.S.A

Turbosmart Plumb Back Blow Off Valve (Universal)

$ 269.95 $ 299.94

GrimmSpeed V-Band EWG Block-Off Plate (Universal)

GrimmSpeed V-Band EWG Block-Off Plate (Universal)

GrimmSpeed V-Band EWG Block-Off Plate (Universal)

$ 70.00

GrimmSpeed Adjustable Internal Wastegate Mounting Bracket (WRX/STi/Multiple Subaru Fitments)

GrimmSpeed Adjustable Internal Wastegate Mounting Bracket (WRX/STi/Multiple Subaru Fitments)

GrimmSpeed Adjustable Internal Wastegate Mounting Bracket (WRX/STi/Multiple Subaru Fitments)

$ 39.00

Save 21%

Vibrant Performance Weld on Flange Kit for HKS SSQ BOV

WELD ON FLANGE KIT FOR HKS SSQ BOV BY VIBRANT PERFORMANCE - JD Customs U.S.A

Vibrant Performance Weld on Flange Kit for HKS SSQ BOV

$ 30.99 $ 38.99

ETS Top Mount Intercooler (08-20 STI)

ETS Top Mount Intercooler (08-20 STI)

ETS Top Mount Intercooler (08-20 STI)

$ 695.00

ETS Stock Turbo Piping Kit (15-20 STI)

ETS Stock Turbo Piping Kit (15-20 STI)

$ 795.00

ETS Titanium Rotated Turbo Piping Kit (15-20 STI)

ETS Titanium Rotated Turbo Piping Kit (15-20 STI)

ETS Titanium Rotated Turbo Piping Kit (15-20 STI)

$ 1,495.00

ETS Rotated Intercooler Piping Conversion Kit (15-20 STI)

ETS Rotated Intercooler Piping Conversion Kit (15-20 STI)

$ 245.00

Save 25%

DEI Titanium Turbo Shield Kits T3 Turbos

DEI Titanium Turbo Shield Kits T3 Turbos - JD Customs U.S.A

DEI Titanium Turbo Shield Kits T3 Turbos

$ 193.53 $ 259.38

ETS Single Scroll V-Band Turbo Kit (15-20 STi)

ETS Single Scroll V-Band Turbo Kit (15-20 STi)

$ 3,095.00

ETS T4 Twin Scroll Turbo Kit (15-20 STi)

ETS T4 Twin Scroll Turbo Kit (15-20 STi)

$ 7,245.00