AGP Boost Leak Tester

Use this aluminum boost leak tester tube to check your system for leaks.  The tube is 3" and has the necessary bead formed on the end so it will not blow off during tests.  The other end has a 1/4" NPT bung for you to attach all of your...

HKS Version IV Super Sequential Blow Off Valve

Super SQV 4 features include a nickel-plated, die-cast metal secondary valve, which is swaged to the primary valve, a stainless steel C-Clip and O-ring to increase sealing and durability. To assure buyers that they are purchasing an authentic HKS...

SRT-4 AGP EVM for Stock BOV

Your factory Blow off Valve (surge valve) that came stock on your vehicle vents intake pressure back into the turbo's compressor housing. In stock form, it is very hard to hear the "woosh" or "psssft" when you left off the gas, because the air vents...

SRT-4 BOV Block Off Plate

Purchase this aluminum piece separately if you already have an aftermarket external blow off valve, or if you want to run an external blow off valve. Billet Aluminum, CNC machined with o rings.  No gasket or sealant neededThis fits the factory and...

SRT-4 Caliber BOV Kit with TiAl Q BOV

The factory blow off valve in the Caliber SRT-4 acts as a way to limit boost. Remove the factory BOV, and install our pressure stopper onto the compressor housing of your stock turbo. Install the AGP aluminum hard pipe with genuine TiAl Q blow off...

SRT-4 Caliber BOV Kit with Turbo XS RFL

The factory blow off valve in the Caliber SRT-4 acts as a way to limit boost. Remove the factory BOV, and install our pressure stopper onto the compressor housing of your stock turbo. Install the AGP aluminum hard pipe with Turbo XS RFL blow off...

SRT-4 Caliber External Blow Off Valve Kit

The factory blow off valve in the Caliber SRT-4 not only vents back into the inlet of the compressor housing, but it also acts as a way to limit boost. Remove the factory BOV, and install our block off plate onto the compressor housing of your stock...

SRT-4 Turbo Pressure Stopper

Purchase this aluminum piece separately if you are planning to run an external device.Billet Aluminum, CNC machined with o rings.  No gasket or sealant neededThis fits the factory and upgraded turbos on the Neon SRT-4, PT Cruiser Turbo, and Caliber...

TiAL Q 50mm Blow Off Valve

For use on turbo-charged and super-charged applications. The body and all internal components are CNC-machined from 6061 aluminum alloy. It features a large 1.98 in (50.5mm) valve; we believe this is the largest valve available with the highest flow...

Turbo XS BLOW OFF VALVE TYPE H-RFL

With new and improved styling, the BOV-H-RFL remains true to it's roots - it's still really f'n loud! Like all our valves, the RFL relieves compressor pressure surge caused by changing gears or backing off the throttle. If you need to ask how loud it is,...