At delaware,when they changed the rule in super stock,did that make things for better or worst???

I would have to say that the headers made it better, and worse at the same time.

Headers are lighter,which is always good.  They are easier to find and cheaper to buy then the ram horn manifolds that most were running before, which is good.  They also reduce underhood temperatures and help with burning plug wires, which is good.

But, how often do you need new manifolds?  One set should do.

Also, when the header rule was brought into effect, they also changed the size of the pipe, from 2 1/2" up to 3"
and allowing the "X" in the pipes.  Now the entire exhaust system is no good anymore, because once one car makes the switch, everyone needs to keep up, and make the switch.  So from a performance stand point, it really made no difference because everyone was running the same stuff.  It simply cost a whole lot of time and money.  Which is not so good.

The only real benefactors were those that were starting from scratch, and needed an entire exhaust system anyways.

The same could be said about all the rule changes over the past few years; the spoilers, tubular control arms, aluminum radiators, electric fans, under drive pulleys and on  and on  and on.

The SS class is SO competetive that, any rule changes almost force you to make the change, unless of course, you are happy running 15th to 20th, but last I checked, thats not what racing's all about.

Hey Napa
Thanks for your input,around here the rule is 2 1/4 stock cast iron exhaust manifods,no ram rams,with 2 1/4 exhaust pipe.
There's been some talk about allowing headers,but no-one is sure where thats going yet!If they do allow them next season,iam sure the pipe size will remain the same,so the install shouldnt be too hard. 😮 😮 😮

Really, what would be the performance benefit to the headers with 2 1/4" pipe?  All the flow gained by the header would be lost as soon as it hits that small pipe.  Are you allowed balance tubes or X pipes?  What type of mufflers, if at all?  What manifolds are allowed?  If you have to run the truck style "W" manifolds, that sucks, now I see why you guys would have to get new manifolds.  Those things are a pain in the donkey.

The rule allows h and y pipes,any type muffler at most tracks,we are talking thunder cars here!!
Iam thinking the same with you about no performance gain with the same pipe size,they would be allot cheaper then the cast,and same things you already mentioned... 😮 😮 😮
We can use any stock type cast iron,no ram horns manifods.