well i was searching for a 90degree reducer elbow and i was browsing around this site and i ran across this like flex coupler for the exhaust it helps alleviate vibration throughout your exhaust system and releive stress on the downpipe and manifold. im running 3inches from down piple all the way through my inline pro exhaust and i do notice a lot of vibration would that be the answer? because the way i have my exhaust mounted to be a little more secure on certain roads ie:highways my exhaust is hitting my rear axle bolt (no good) i was told it was the design of the downpipe to where my exhaust runs through which is the problem. so would this flex coupler help?? heres the link :flex exhaust coupler

 

Not sure what you are trying to say, but my Inline Pro exhaust came with a flex after the downpipe...

Chris

 

it is common to see it in fwd honda applications, the flex section is in the downpipe, before the exhaust, i can't imagine the effect being any different for an s2k:

 

Does the factory S2000 have one?
No

 

But the factory exhaust has extra brackets to stabilize things that a downpipe does not have.

 

Sorry didnt realize that. My downpipe uses the same factory mounting bolt the stock header uses to attach to the block

 

The factory exhaust allows a certain amount of flex where the header mates to the rest of the exhaust. Two spring apply pressure to the 'donut' between the two.

 

Not running a flex pipe will stress exhaust components (metal) over time which will lead to cracking.

 

cause i have just straight pipe and i was concerned about all the vibration it wouldnt b good over a period of time. how do people mount them? is cut out section where cat used to be weld flanges and use v-bands clamps? im using your old kit Pang you didnt have any problems

 

You will have to cut out a section of pipe and then weld in the flex pipe. Clamps will not work for it.