Offical Gruppe-S UEL Header Install & Review Thread

[Gruppe-s]

Originally Posted by SPCorBUST

Yes, I do.

Yes, soon.

I don't have the baseline set yet though, but I will probably get a tune, then do a stock header swap later, do a couple passes just to see the number, then get a small tune adjustment and dyno again though.

Someone is testing them now, on both an automatic and manual. The results will be posted soon, so keep an eye out for it.

[continuecrushing]

So I've had several people at stoplights mention how badass the car sounds! And rev-matching sounds freaking awesome.

UEL is really the way to go haha.

[SPCorBUST]

A week late, but better than never. Current setup:

Jackson Racing Supercharger
Gruppe-S UEL Header
Perrin Foam Filter
Perrin 2.5 over pipe
Perrin 2.5 front pipe
Perrin 2.5 catback exhaust

Cold Start
[ame="https://www.youtube.com/watch?v=XGNCH73HjD8"]Gruppe-S UEL Header BRZ/FR-S/GT-86 Cold Start[/ame]

Warm Start Revs Rear
[ame="https://www.youtube.com/watch?v=ohopihXrv9c"]Gruppe-S UEL Header BRZ/FR-S/GT-86 Outside Rear[/ame]

Warm Start Revs Front
[ame="https://www.youtube.com/watch?v=UO6j_XdhIrg"]Gruppe-S UEL Header BRZ/FR-S/GT-86 Outside Front[/ame]

[SPCorBUST]

Real quick difference on Tomei vs. Gruppe-S UEL besides the obvious stamping on the flange and the runner paths - the bridges are on the top of the header rather than on the bottom.

The benefit is that with the Tomei header, some customers have noted a tapping sound that comes from the bridges tapping against the undertray, but since those bridges are no longer there for the Gruppe-S, it may not produce that tapping sound. Nice change.

Tomei (picture from RallySport Direct)


Gruppe-S (from my build thread)


From my perspective, it looks like the flanges, collector, and shorter runners are the same, and the only difference is in the longer runners, for better or worse, who knows.

[drew_kar]

Originally Posted by Gruppe-s

1 year warranty. Over pipe is $125, order it same time as header and it ships free.

Pm sent.

[Gruppe-s]

PM replied

[PNW FRS]

Originally Posted by Gruppe-s

Make sure I didn't send you a WRX header please before you coat it.

Sorry for Noob question... but is coating the header to hide "bluing" (discoloration) from heat -- or -- protection against rust in wet environments -- or -- both?

[RobertPaulson]

Originally Posted by PNW FRS

Sorry for Noob question... but is coating the header to hide "bluing" (discoloration) from heat -- or -- protection against rust in wet environments -- or -- both?

likely getting it ceramic coated to reduce the amount of heat that gets into the engine bay.

[Gruppe-s]

Originally Posted by PNW FRS

Sorry for Noob question... but is coating the header to hide "bluing" (discoloration) from heat -- or -- protection against rust in wet environments -- or -- both?

It shouldn't rust, the material is stainless.

There are a bunch of different coatings available out there. I will do some research to get a price on aluminized coating, not sure about the heat protection, but it is resistant to high heat and excellent in regards to durability.

[PNW FRS]

Originally Posted by Gruppe-s

It shouldn't rust, the material is stainless.

There are a bunch of different coatings available out there. I will do some research to get a price on aluminized coating, not sure about the heat protection, but it is resistant to high heat and excellent in regards to durability.

I'm no SS expert... but I've seen rust on some SS products... usually near welds and such. That said, never took a brush to it to see if it was surface rust or rust adhering to something metallic on the SS. I've also heard of SS not holding up great in salt-water-salt-air conditions (e.g., ss fittings on sailboats). Extreme conditions yes... just say'n. As far as heat protection.. that would be great if true (i.e., can be substantiated with test data). The engine bay can get pretty hot after prolonged hard driving, so anything that could mitigate that would be a plus.

Thanks for the feedback... was just curious.

[Bergen23]

Originally Posted by PNW FRS

I'm no SS expert... but I've seen rust on some SS products... usually near welds and such. That said, never took a brush to it to see if it was surface rust or rust adhering to something metallic on the SS. I've also heard of SS not holding up great in salt-water-salt-air conditions (e.g., ss fittings on sailboats). Extreme conditions yes... just say'n. As far as heat protection.. that would be great if true (i.e., can be substantiated with test data). The engine bay can get pretty hot after prolonged hard driving, so anything that could mitigate that would be a plus.

Thanks for the feedback... was just curious.

Generally, any metal exposed to the elements will rust without adequate protection. Ie: a coating and/or cathodic protection.

[Gruppe-s]

Originally Posted by Bergen23

Generally, any metal exposed to the elements will rust without adequate protection. Ie: a coating and/or cathodic protection.

I will get a header coated in the available coatings we have here and see if you are interested in them. I will offer them at cost to see if it helps with those headers exposed to more harsher conditions.

[ichitaka05]

Heard a lot of good thing about this header (both quality & dyno).

Very temptin' to get one...

[drew_kar]

Originally Posted by ichitaka05

Heard a lot of good thing about this header (both quality & dyno).

Very temptin' to get one...

I think it's the new go to header for people who don't want the ace, jdl 1k+ headers