I guess I don't understand what performance advantage there is by having the CEL fix.

 

Without the CEL the 70mm HFC is legal. The legal one would be STR legal one Josh is reffering to.
With the CEL fix, the 70mm HFC is illegal.

The current rules state you can't use anything to fool your CEL. The performance advantage is the difference between the 63.5mm(does not require a fooler) and 70mm HFC (requires a fooler).





If you start allowing people to circumvent the rules with "fixes", it opens a whole new can of worms. I'm going to take a set of V710s and stamp treadwear 140 on the side of them. Technically, the tires say treadwear 140, does that make them legal for STR? If we are allowed to "fix" things, then why not? Its an extreme example, but you and I both know someone will try something like that
(BTW, I hope that doesn't come across as rude, its meant to be a joke )

 

The performance advantage here sounds quite obvious. You can use a 70mm HFC. Without the CEL fix option, you can't. Right?

Why do you need a CEL fix with the 70mm? Just a lack of the correct ports, or does it not work well enough and the car senses it as a bad cat?

 

If you come to a event with a berk HFC and didn't it didn't have the "str mod" and I, personally protested you then yes that would be me being a baby and crying about it. It would be time to go get weenies and throw them at me.

All I'm saying is "yes go buy the str legal one, but if you already have one and its not the str legal one then who cares." There is no performance gain to having or not having the Cel fix on a HFC.

Also for me to notice you have the "illegal" one I would have to climb under your car and check it out. Anyone that would truely do that must be very intimidated by you and you should take it as a complement.

I just called and ordered mine over the phone and asked for the "str mod". It was a extra $20-25.

I'm with you viper I understand the "if we allow this fix it opens a can of worms" But you would never see me personally protest someone that has a mod that has no performace gain at all. Such as the cel fix on the HFC. I'm not like that.

 

there isn't one. All the mod does is cut off the spacer and put the bung back in the exhaust stream.

 

you lost me on that one, so your saying that having the CEL fix is legal while everyone else is saying its illegal. I still don't see how having the CEL fix is a performance advantage.

 

he ment to say "without the CEL fix, the 70mm HFC is legal"

 

After confirming that the Cat on the 70mm was indeed EPA certified it was deemed legal. Yes, you must have the O2 sensor flush mounted for it to be legal. Brian must have misunderstood somewhere but the 70mm with flush 02 (no fouler) is STR LEGAL.

-Jason Wong

 

Fixed.
My bad, long day at work, typing too quick.