ARH header question

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Jul 3, 2015 | 10:54 PM

#21

h.d.fire

Racer

Joined: Nov 2010

Posts: 476

Likes: 4

Quote:

Originally Posted by thegame

Did you have to get a tune ?

Yes, a member here on the forum who is local to me helped with the tune. Runs good but I still get an occasional code, have to go back to the lap top!

Jul 4, 2015 | 08:10 AM

#22

grandspt

Drifting

Joined: Jul 2004

Posts: 1,354

Likes: 291

From: MA

ARH header question

I did not get a tune and notice a power improvement over stock. A lot of people recommend a tune but my personal opinion is that the stock tune can adjust for the slight airflow difference between stock manifolds and long tube headers.
If you added a cam or ported the heads or both then I would get a tune.
I don't trust mail order tunes every car is different a tune with a chassis dyno is best.
My car has never thrown a code/no service engine light.