2018 GT A10 Header Install

[kris5597]

Did you finish up the install? I'm going to install the same headers on my 18 this weekend.

No, I am waiting for my o2 sensor to arrive this Thursday, if all goes well for planning, I should be installing this weekend.

did my 18 last weekend..drivers side 1 1/2 hours, passenger side 2 days.. gotta pull studs ,extremely tight lots of blind bolting..this was on a lift with 2-3 guys helping ...call pypes headers tech line for extensions, they have 150 extensions for the 18 in stock but they all are just 12' long..its too loud after dropping resonator as well..but it sounds mean as hell.

I've gotten to where I can knock out header installs on the 11-17 in about 4 hours doing 90% of the work myself on jack stands, so given this is the minor changes, I'll add an hour or so for the differences.

Lol. Car has factory headers. Not worth the headache ($$$) nor 20hp IMO.

Factory exhaust manifolds you mean. The design is sub-par when it comes to flow characteristics, lots of room for improvement. Especially on an engine that loves to flow, the 2018 being the highest flowing coyote, it is well worth the install. It's also worth more than 20whp as well. I have a dyno of my car before the long tubes, I will dyno again afterwards to show a true gain and will keep the thread updated.

Kris

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[kris5597]

I also plan to replace my suitcase resonator with Magnaflow part # 12468. This should keep the rasp to a minimum paired with the stock active mufflers. I have also tuned the active valves to open based on rpm/ throttle position so it is tame when driving normally, even in stock form.

 

[steph93lx]

I also plan to replace my suitcase resonator with Magnaflow part # 12468. This should keep the rasp to a minimum paired with the stock active mufflers. I have also tuned the active valves to open based on rpm/ throttle position so it is tame when driving normally, even in stock form.

The magnaflow 12468 look like a interesting idea!! It's built like a 2.5" x pipe inside!!! Would have prefer a 3" but it's still should be good going into to 2.5 " axleback

Sure it will sound good!!

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