DC Sports Header install and evaluation - Toyota Yaris Forums

JimKellyfan · 07-03-2017, 11:09 PM

I am trying to determine which header for me. I do highway, but also like my low end. I am steering to a 4-2-1, or like design, but think the tubes should be bigger/posters had some copied/pasted sizes below.

Tolmach ^ Mine measure 31 mm = 1.22 inches

Golddeenoh Tolmach, your pipes look kind of small as well but then again my Megan Racing header is 3mm larger diameter but i wouldn't think that i could tell the size difference in a picture with out side by side comparison.

Tooter The inside diameter of stock 2012 header runners is 28mm and the Weapon R's are 36mm...

Xnamerxx I measured 35mm for the port and 40mm for the gasket.

So, for the ceramic coating is nice, but T409 is not as super duty as T304, at least what someone typed online here:
http://www.autoanything.com/exhausts...s/t304-vs-t409

I was leaning towards OBX as their claim is 1 3/4 primaries which is 44 mm.
It looks like the stock, so it won't have the lower end lacking, as not as much high end as the DC.

Looking at sellers sites, it is hard to see all the sizes, they don't have em, really. I think 1 3/4 is a big boast, hopefully Amazon is right.

For now, I will await other replies, but based on research so far, am leaning to the OBX for the steel type too, the T304 besides the bigger tubes and similar construction to a 4-2-1 set up or stock set up....

Thoughts and sizes anyone ?

07-03-2017, 11:09 PM	#36
JimKellyfan Drives: 2010 Yaris Sedan Join Date: Oct 2013 Location: the good Carolina Posts: 173	sizing I am trying to determine which header for me. I do highway, but also like my low end. I am steering to a 4-2-1, or like design, but think the tubes should be bigger/posters had some copied/pasted sizes below. Tolmach ^ Mine measure 31 mm = 1.22 inches Golddeenoh Tolmach, your pipes look kind of small as well but then again my Megan Racing header is 3mm larger diameter but i wouldn't think that i could tell the size difference in a picture with out side by side comparison. Tooter The inside diameter of stock 2012 header runners is 28mm and the Weapon R's are 36mm... Xnamerxx I measured 35mm for the port and 40mm for the gasket. So, for the ceramic coating is nice, but T409 is not as super duty as T304, at least what someone typed online here: http://www.autoanything.com/exhausts...s/t304-vs-t409 I was leaning towards OBX as their claim is 1 3/4 primaries which is 44 mm. It looks like the stock, so it won't have the lower end lacking, as not as much high end as the DC. Looking at sellers sites, it is hard to see all the sizes, they don't have em, really. I think 1 3/4 is a big boast, hopefully Amazon is right. For now, I will await other replies, but based on research so far, am leaning to the OBX for the steel type too, the T304 besides the bigger tubes and similar construction to a 4-2-1 set up or stock set up.... Thoughts and sizes anyone ? __________________ 2010 Yaris sedan, TRD CAT back (sport muffler only, really), OBX header (relocated front AF sensor to front pipe), OBX throttle plate spacer, K&N filter (in stock air box-for now), TRD struts and shocks, Mexico Rough Road Springs x 4, new Yota sway bar links front, slotted/drilled rotors and Maxx brakes front, Valvoline synthetic brake fluid, 3M undercoated, 16" Konig Feathers Michelin Pilot Sport AS 3 + Tires TRD rear sway bar, 4 GT Spec bars including: front strut brace 2 point, 4 point ladder brace, mid chassis brace and rear lower tie brace, rear hitch, [B]