Stillen intake issues
 

Just installed my Stillen gen3 long tube intake. But every once in a while when I start my car it puts my car into limp mode. There’s no check engine and no other lights. Just limp mode. I have no power through first and second and feels like it’s gonna stall out. But once I turn it off and restart it I have no issues. Any help. I have a 2014 370z

Buy/borrow/rent an OBD code reader and see if any DTCs have been thrown.

Or go to Autozone. They'll even give you a print out, with some (VERY) basic tips on what MIGHT be causing the problem (they're of course doing this to try to sell you things to fix the problem). But it's still very handy.

Clean your throttle bodies and MAF sensors.

Also I'm curious about what you are seeing that makes you say it's an issue with the intake? Is it the timing of when this started happening?

My Gen3 had a left over filler manufacturing piece in there that typically isn't supposed to be in there — a rubber piece that is the same diameter of the tube.

My car was running for like 2 minutes and then shut down. Great because if that piece made it through the throttle body...

It’s all started the morning after I installed the intake. Had the car for about three months drove it daily and never had any issues. But once the intake went on the next morning I started it and had no power. Called my buddy that helped install it and he said it sounds like limp mode. Just weird it hasn’t put a check engine on. It comes and goes. I can go a week without having it happen then it happens.

Gonna have to do that. I’ll get back to you with the results. Thanks for the feed back.

I heard this could be the issue. That will be one of my next steps once the winter is over. Thanks for the feed back

Check your connections on the MAF's.

Clean your intakes out the box they could be dirty from production in the inside.

Quick question regarding G3’s - I already have test pipes, CBE and a tune. Would I be okay to add these without immediately getting retuned?