STM Aluminum Valve Cover Fittings - Evo 4/5/6/7/8/9

STM Tuned Inc.


For these Applications:
1996-2006 Mitsubishi Evolution IV V VI VII VIII IX
(See all compatibilities below)

Always looking for ways to make the engine bay cleaner, lighter and easier to work with, the STM Aluminum Valve Cover Fittings allow you to simply install -AN lines and fittings for a catchcan or breather right onto your valve cover.

Front Side Fitting:
Front -6AN fitting fits all Evo 4/5/6/7/8/9 valve covers

Rear Fittings (PCV Valve Replacement):
The -6AN and -10AN rear fittings only fit the Evo 8/9 valve covers.

JDM Valve Covers:
The rear -10AN fitting will NOT fit the JDM Evo 4/5/6/7 valve covers. It looks like it might - but it does not.

Install Notes:
The fitting itself is a very tight fit, but we would definitely recommend a touch of glue or epoxy to help hold it in place in the valve cover upon install. We recommend the ThreeBond Gasket Maker.


Image Fitting Valve Cover Compatibility
-6AN Front & Rear Set Fits Evo 8/9 valve cover only
-6AN Front Fits Evo 4/5/6/7/8/9 and 1G/2G DSM valve covers
-6AN Rear Fits Evo 8/9 valve cover only
-10AN Rear Fits Evo 8/9 valve cover only

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© All images are property of STM Tuned Inc

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Customer Reviews

Based on 3 reviews
Evo valve cover refresh

These valve cover bolts got rid of the old oiled and beat up bolts that were going back on my freshly powder coated valve cover. They did the trick. I would definitely recommend them.

Valve Cover Fittings

Perfect fit and look great! Thanks STM!

Amazing place!

Stm never let's me down on info and parts I need to get the job done right. I really appreciate all the help and info on what to buy and how to install correctly. stm is a big life saver for my evo and dsm.

Glad to hear that, Michael. We appreciate the awesome feedback, and we appreciate your continued support. Looking forward to assisting you again in the near future!

Cancer and Reproductive Harm