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If you have a sport touring with the L15B7, you do still have VTEC on the exhaust side in the 11th gens, unlike the 10th gens. And it doesn’t “kick in” at a set RPM like old VTEC. Wide open throttle at any RPM and large amounts of throttle at low RPM will engage the VTEC. It’s entirely to...

Here’s some photos of what the carbon fiber inlet pipe looks like installed, since PRL only has 1 on their site. Thank you @axion_industries for the fast delivery 🙏🏼

The manifold comes plugged, the holes need to be drilled out for secondary injectors.

How were you tightening them?? Did you use a ratchet on the stud itself? They’re only supposed to be threaded in by hand, then you torque the nut.

Mine does the same thing. Weirdly when I did my spark plugs the sound died down a lot but has came back ~5k miles later.

So it seems that it is mostly common knowledge that the 10th gen Si had a 32lb dual mass flywheel, that caused significant rev-hang in those cars. It also seems that most people know that the 11th gens have single mass “lightweight” flywheels. Even with that being the case, the rev-hang is still...

I live in Phoenix. 115+ degree summers are not nice to cars. I’ve heard from people in this climate running the PRL intercooler + 27won intake duct is too much, and they’ve dealt with a lot of overheating issues. MAPerformance also had it for like $490 so I figured why not. The radiator made a...

With the stock intake there was about 0.5” of clearance in between the intake duct to the air box and the fan shroud. I reinstalled your guys intake a few days ago though. Tune didn’t like the stock intake, even with a K&N filter. I found that if I put a bolt through the forward most hole on...

Just a heads up for everyone, I installed the Koyo radiator today, and the PRL HVI doesn’t fit with it. I removed the bracket that holds it to the front radiator support to try and get a little more room, but even then you can just barely get the bolts in to the top plastic duct piece. When...