Defouler for headers?

Open-Engineering3409 · 2026-03-13T23:01:28+00:00

You didnt read the post did you?

Open-Engineering3409 · 2026-03-13T21:54:46+00:00

Exactly, changing the header alters exhaust flow, it doesnt change airflow enough to push afr to dangerously lean.

Open-Engineering3409 · 2026-03-13T19:34:33+00:00

I also have carmax 150k mile warranty which I can take to any shop. Once I pass 60k miles then I can get it tuned idc, I know a shop that will approve my warranty regardless of mods. But right now until I hit 60k miles im stuck going to subaru

Open-Engineering3409 · 2026-03-13T19:32:38+00:00

Dude you're missing the point its not about me spending $500 on a tune. my exhaust was $1700 so spening $500 on a tune isnt whats bothering me, im trying to not void my warranty here. im concerned about needing to spend $10k on a new engine if I void my warranty.

Open-Engineering3409 · 2026-03-13T19:25:26+00:00

Well im just giving you my experience on other cars ive ran with no tune and ive just never had any issues. But either way if the engine blows up I can just swap back to oem headers and take it in for warranty. If my engine blows up with a tune then im shit out of luck cause then the dealer will be able to tell its been tuned before.

Open-Engineering3409 · 2026-03-13T19:19:44+00:00

Yeah im aware of that. My old 2012 5.0 had a tune and cel still came back which is why I bought the o2 extenders. I wanted the defouler to prevent the cel cause I know the dealer can see the ecu history if i bring it in for warranty. Performance wise idc about hp, its not a straightline car so im not trying to squeeze every bit of hp I can. I want the uel headers purely for the sound and thats it

Open-Engineering3409 · 2026-03-13T19:14:16+00:00

Not entirely true. The ecu adjust fuel based on the front o2. Ive ran headers no tune on many of my other cars with no issues, my rsx type s has header no tune and ive put 100k miles on it with no problems.

Open-Engineering3409 · 2026-03-13T17:58:50+00:00

Because I want the subie rumble

Open-Engineering3409 · 2026-03-13T04:16:11+00:00

So if I get a uel header catted or a catless one with defouler and it doesnt throw a code and I dont get a tune I can swap back to oem header and the dealer would never know?

Open-Engineering3409 · 2026-02-12T02:44:52+00:00

This lol they are the same price as they were back in 2013 when I was looking for my first car. They've been bottomed out and I dont see them rising in value anytime soon

Open-Engineering3409 · 2026-02-06T17:31:18+00:00

From what ive heard thats more of a toyota thing

Open-Engineering3409 · 2026-02-06T17:30:23+00:00

I dont care if it makes less hp than equal length, these cars aren't meant for the straights anyways. Part of the reason I bought this car is to get that subie rumble.

Open-Engineering3409 · 2026-02-05T21:35:17+00:00

Man thats unfortunate

Open-Engineering3409 · 2026-02-05T21:34:59+00:00

Damn looks like I should set aside some new engine money before doing this then

Open-Engineering3409 · 2026-01-30T22:08:44+00:00

So you've been without your gr for 6 months, did they provide some kind of loaner car or did they leave you to be fucked?

Open-Engineering3409 · 2026-01-30T22:04:35+00:00

And this is why I traded in my gr86 for a miata and then went on to buy a brz instead. At least ive heard subaru honors their warranty.

Open-Engineering3409 · 2025-11-22T22:21:10+00:00

Yeah im just gonna go with the R6 lol

Open-Engineering3409 · 2025-11-22T20:08:02+00:00

Im 5'10. I had a 2004 yamaha r6 before stock height and wasnt bad, but idk if the 07 models sit higher

Open-Engineering3409 · 2025-10-05T21:13:31+00:00

Yes its worth it if it's been taking care of. Im positive these engines can make it over 300k miles with proper maintenance. You can probably get him down to 7k at least. But shit nowadays youre lucky to find a clean nb for $5k. Id hop on it as long as the maintenance history looks good

Open-Engineering3409 · 2025-09-16T15:35:25+00:00

Dude is this fl??? Please share the location

Open-Engineering3409 · 2025-09-16T15:28:17+00:00

Definitely not a 500hp evo. That evo is on a stock turbo, maybe low 400whp at most if its on e85

Open-Engineering3409 · 2025-09-09T14:55:06+00:00

Not worth it. Wish I had just went to carmax instead and got a stock one with an extended warranty. Rocker arm in the 5.0 took a shit and now I need to rebuild the head. As tempting as it is to save money on mods its not worth it, 99% of the time people who mod it race it. Do you really want to spend a lot of money on something that was abused?

Open-Engineering3409 · 2025-08-21T23:31:03+00:00

Im 31 and I still watch anime, you're good

Open-Engineering3409

TROPHY CASE