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Mazda Turbo Oil Restrictor Banjo Bolt
$ 30.00

Mazda Turbo Oil Restrictor Banjo Bolt

Original price $ 30.00 - Original price $ 30.00
Original price
$ 30.00
$ 30.00 - $ 30.00
Current price $ 30.00
The Damond Motorsports Turbo Oil Restrictor Bolt, reduces the oil feed to the factory K04 turbo, to help in preventing the common Mazdaspeed "smokey-turbo." Using proven and tested hole diamaters, the Damond Motorsports bolt allows proper oil feed to the factory K04 turbo, without over-oiling the turbo, and prevents oil seeping past the turbo seals into the exhaust. In addition 2 new OEM spec copper crush washers are included. This is a great, low-cost component, if you're looking to add a catless or more free flowing exhaust that would potentially result in more exhaust smoke. 

Also works with BNR turbochargers. 
TQ spec is 18-26lbs/ft
Free US shipping! 

Customer Reviews

Based on 100 reviews

Great parts, awesome costumer service

Exactly what I need for my vaping turbisky

Since my tune with my 3” steam pipe exhaust and other small things my car started smoking, changed my oil for 5w40 and it made the trick for about 3 years. Last winter the thickness of the oil was not enough to keep the it out of the exhaust, it was smoking bad like a Subaru meet cloud... I tried the banjo before changing the turbo, and it work pretty well! Easy install and solved my problem!


Turbo stopped smoking very good to get highly recommend if you’re an overthinker like me and think the worst when your turbo looks like engine failure

Edwin Garcia Perez
Works as intended

Works as intended easy install, reduced my smokey turbo due to catless, and oil burn was reduced

Mathew McCain
Performed as advertised!

Did just what I needed it to do. Catless dp and full 3” straight exhaust, my ko4 was smoking like a banshee. Oil restrictor bolt has currently solved that issue.