Audi TT 225 1.8T Turbo Boost Leak Tester Kit - Billet Aluminum - 15 PSI Gauge, T-Bolt Clamp

This Boost Leak Tester is made to fit on the INSIDE of your Turbo's intake pipe (TIP) after the MAF sensor housing.   Comes standard with a 15 PSI gauge, tire valve stem fitting, 3/4" plug and some zip ties.  The 3/4" plugs the crankcase breather line that attaches to the TIP.  This prevents the compressor pressure from going into the crankcase system.  Recommended to open the oil cap to prevent any pressure build up in the crankcase.

For stock or aftermarket TIPs that are 3" inner diameter.

Pressurizing the system will allow you to run peak boost your motor was tuned for ensure you are putting all the power down without any leaks.   A boost leak will cause the compressor wheels to over-spin to compensate for lost pressure.  Eventually this puts a lot of strain on the turbos and they start to develop shaft play from running hot and poor oiling.  

 Design Features & What's Included:  

• (1) 3" Billet aluminum End Cap
• (1) Custom Boost Gauges - Stainless steel shock-proof glycerin-filled.  Range 15 PSI/ 1 Bar
• (1) Both Tire Valve stems for easy testing and Compressor Fitting 1/4" NPT
• (1) Stainless Steel T-bolt Clamp
• (1) Plug for crankcase return hose

Instructions:
1. remove intake pipe and expose the silicone adapter on the turbo inlet hose
2. Insert the boost leak tester end cap into the silicone inlet
3. remove the oil cap to prevent accidental crankcase pressurization
4. Fill the system with a compressor.  Start with low pressure such as 5 PSI.  Listen for leaks, fix leaks and repeat to catch the next leak.  Largest leaks are found first.
* good practice to disconnect the diverter valve "blow off valves" return lines as shown in the pic.   This will test the diaphragm of the diverter valve.  It should not leak air on the return side when boost leak testing. 

Lifetime warranty.