Great move on the hangers, I dreaded those OE hangers when I re-installed my OE exhaust. Thanks for the link to the other thread

 

So I learned a lesson tonight about doing this to your exhaust if you have a straight pipe... DONT do it, lol. My car felt slower than a suzuki swift due to the lack of backpressure, and was louder than an RX7 with open headers :S Thankfully my buddy Matt came to the rescue and welded it back up for me.

Just thought I would share my dreaded evening

 

back pressure being a requirement is a myth. If that was the case people would be running 1" exhausts.

Your car was slower only in your head. There is no power loss cutting the end of the oem exhaust off.

 

What is the pipe that is sticking out perpendicular to the main exhaust piping for?

Sorry for the ignorance, don't own a s2000 yet, but hopefully soon...

 

I like to call it the dong...
but its really a sound harmonics thing...

 

i run AS but in the street tire class and i went with the skunk2. Lighter than stock and only about 700 buck. Its too loud for most people though.

 

or you can get another resonator from a s2000 and use it as the exhaust

 

That's exactly what I was thinking of doing for my removable rear section. I love the sound of the stock resonator with no mufflers, it's just too loud to drive every day. How much of a difference does the extra resonator make?

 

what difference are u talking about?? i just did it mainly for weight savings and DD'n.

 

Update on this:

If you're going to do this, move the split a bit further forward. The short version of the exhaust can swing on bumpy autocross lots, I've never heard it hit anything but it did swing over far enough to catch the v-band clamp on the spinning axle bolts. The v-band clamp lost that battle. I used safety wire to hold it to the side for Nationals and a few local events but will rig up something better this spring.

Back to back DL1 testing shows no appreciable power gain or loss. (both exhausts were in the car for all testing so there was no weight change between the tests, testing was a 2nd gear rolling pull from the same spot repeatedly on the same road) Gusts of wind and passing on-coming cars on a two-lane road had a MUCH greater effect than swapping from the stock mufflers to the short turndown.

I left the short version on a few times over the summer when the next autocross was a week or less away. The sound isn't as annoying as I made it out to be in the first post and doesn't draw any more attention than your typical aftermarket exhaust. My co-driver actually prefers the sound over the OEM exhaust or any of the singles we heard at Nationals.

I'd do this again in a second, it's a DAMN cheap way to cut 40 lbs off the car.