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Can't see a thing. Kind of crazy actually

My head has stock ports, specifically to maintain stock TQ, drivability, spool, and VE.

They do that for consistency, not because it's better. I'd much rather have 82.5mm, but if I were building engines for a business I'd only do 83mm.

Ed has forgotten more about this platform than Alex will ever know.

Hard pass. It's going to be an IS38 with cheaper materials and no QC. Buy the one from FCP Euro.

Why would you want to disable the secondary O2 with the stock cat in place? You've physically maintained emissions compliance, but caused your car to fail inspection for no performance gain. Makes no sense, that's why no one does it.

His gasoline tunes have been terrible and every single stage 2 and up tune disables the CEL from the after cat O2. The primary O2 is needed to fuel the car...

Because it's a speed density setup. It has to be modeled, that's how it calculates fueling, otherwise it would need a MAF sensor.

Depends on the setup...if it's a big turbo car and power is the only consideration, port the head for sure. Our basic hybrid daily driver...nah I'd rather make a bit less power and maintain stock drivability.

Exactly, so when you port the head, you have manipulated the VE curve, and it now does not match the one modeled in the ECU. I can't speak for all tuning solutions, but Maestro does not have access to the VE modeling.

Google and understand "volumetric efficiency". It is modeled in the ECU. Messing with it in a closed loop factory ECU can become a real can of worms when you have partial access.

$2 vs like $130 or whatever my local dealer quoted for a 1oz tube of the VW stuff.

Like 1/4 of 1 tube for the valve cover. Just enough to run a decent bead. Ultra gray is not recommended by VW so use at your own risk

Doesn't even have to be a K series, even an H22 head. Between the head design and the thin wall blocks, our engines will never be one of the legendary 4 bangers. Great engines for 5-600hp, but a waste of time to go beyond that.

Head flow on this engine is absolute garbage. Hydraulic lifters and oil pump are both incapable of much over 8000rpm, but you won't make power above 8k anyway because of the head. A 20 year old stock Honda head puts a ported EA888.3 head to shame.

They change this damn sealant every 6 months. I used ultra gray when I built my motor, hasn't even wept yet

wastegate is fine, dont touch it.

"obviously the wastegate needs adjusting" Highly unlikely.

The focus is a wet noodle. Tiny turbo makes it feel like a diesel, MPG sucks, chassis doesn't put power down at all, etc. Junk.

You and every other MK7