Quote:
Originally Posted by ghibli99
The springbolts allow for some flexibility around the b-pipe's donut gasket (on the outlet side). This is the same setup as on Subarus, except the donut gasket it located on the outlet side of the downpipe, not between the intermediate pipe and muffler.
The T1R b-pipe comes with the 5 bolts, 5 nuts, and 2 gaskets. I assumed that you would use 3 for the catpipe/b-pipe connection, and 2 for the b-pipe's midsection. I just reused the bolts already in the catpipe plus the original nuts, used 2 new bolts/nuts for the midsection, and used the extra bolts/nuts for the muffler. I ended up with one extra bolt and nut.
Ideally, I would rather use the Honda springbolts plus some nuts from a hardware store for the muffler section. Having a solid pipe setup from the testpipe all the way to the muffler seems like it would cause additional stress and introduce the potential for a leak. I'm not an engineer, but if Honda designed their exhaust system with flexibility in the back, I'd prefer to mimic that.
Anyway, I'm running mine the same as you, and so far so good. I was going to stop by the Honda dealership to see if they had nuts to mate up with the springbolts.
-Mike
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ah i see, thanks for clarifying! mine is set up exactly like yours, i have an extra bolt and washer as well. i think i'll just take the word of aj-racing because it seems like even with the spring bolt, the extra flexibility would be very minimal since it would be very tight any way. anyhow, mine has been set up this way for a couple of months now, and no leaks so far. i've done at least 4 thousand miles with it on like this, but if something goes wrong in the future i will let you know in case you still don't have spring bolts on yours either. haha.