Originally Posted by chetly,Aug 14 2010, 06:52 AM

My reading of the rule is as long as the cat is in the same location as stock (i.e after the header) then this header would be legal. This header fits that wording...

I know of a driver who has this header and cat on thier car and they are on the list of 15 up above that could win.

Originally Posted by pinkertonpunk,Aug 14 2010, 07:42 AM

I can't remember if this was discussed yet in this thread or not. I could have sworn there was an answer for my question in a Fasttrack at some point but here it goes:

So since the Hytech header is a touch longer than the stock headers, I am wondering if they could be made STR class legal. Here are the catalytic converter rules for the class:
E. Catalytic Converters
ST, STS, STR – Catalytic converters may be replaced by aftermarket
units. Replacements must:
1) Be certified for use in that vehicle application by the manufacturer
or reconditioner,
2) Bear correct EPA-mandated labeling,
3) Be of the OE quantity and type (i.e. oxidation, three-way, etc.)
and
4) Be used in the same location(s), relative to the chassis, as the
OE converter(s).
This does allow for high performance replacements, provided they
meet all restrictions herein.

So my question is if the high flow cat is smaller than the stock unit does the inlet of the cat have to be at the same point relative to the chassis or does the center of the cat have to be in the same point? I think if it was the middle you could make this header work in STR. Not sure if I would spend the money for this header but I am just wondering.

Originally Posted by bronxbomber252,Aug 14 2010, 05:30 PM

So... I got my SPC Adjustable Ball joints in and upped my front camber to -2.8... Got to test the car today and it definitely fixed the slight mid corner and on throttle understeer and the car rotates MUCH better... Now to work on getting a bigger front bar so that the car can transition faster. I know a lot of you run Gendron bars but that just is not in my budget in the near future... I will probably get the Saner bar, unless anyone else has any suggestions.

Originally Posted by TheNick,Aug 14 2010, 06:43 PM

See the June Fastrack for a proposed clarification on "location"

If the volume of the replacement catalyst substrate/core is smaller than the original, the replacement must fit entirely within the extent of the original


Right now its up to the PC to determine what the "location" is. Some may think its the inlet flange, others may think its the center of the substrate. There really is no way to tell if its legal until someone throws paper.

Unofficially and IMO of course.

Originally Posted by mLeach,Aug 16 2010, 07:30 AM

I would argue that if you can't swap the custom cat for a stock one and everything line up the same way, from inlet to exit, ignoring core configuration, then that would be illegal.