figit

iTrader: (1)

I've lost one of the 2 spring loaded bolts for the rear pipe and cant seem to find them online anywhere.

A search pulled up the replacement bolt via this thread: https://www.rx8club.com/showthread.p...ht=spring+bolt

But I need the spring as well. Any suggestions would be greatly appreciated.

Thanks,
-m

TeamRX8

iTrader: (25)

the dealer unless someone has one lying around

Part # YJ15-40-582 , about $6 msrp


the bolt/stud is Part # B31R-40-584, about $12 msrp from the dealer


the nut that holds the bolt/stud to the flange is Part # 9991-61-000


the nut that tightens the spring to the flange is Part # 9994-01-003





.

figit

iTrader: (1)

U rock, thanks man. I was hoping to find something online but the dealership isn't far, thanks again!

-m

kamichael25

I used this website... Great prices and easy to figure out shows pictures as well...

http://mazda-parts.com/

http://www.mazda-parts.com/partscat.html

Happy hunting...

nuke0907

iTrader: (2)

you can also try going to a dealer and ask if there are any RX8's getting their Cat replaced. they use all new hardware so just ask if you can have the old ones. i did this and they gave them to me for free. just a suggestion.

~ Kuro ~

iTrader: (1)

This place might have it too:

http://www.trademotion.com/partlocat...&siteid=214264

didn't have time to look, but....

Jaaaaack

Since this is still the first google result for "rx8 exhaust spring bolt" I figure it's worth bumping with this info:

I bought the Mazda OEM exhaust springs and studs with part numbers: YJ15-40-582A and B31R-40-584 respectively.

The stud is threaded M10-1.25 on both sides.

More interesting is the hex nut size on the stud.
13mm socket will fit it, but there is a lot of slop possibly because of the curved corners on the hex.

A 1/2 inch, deep socket, is a far superior fit (see picture).

Anyway, hope this helps somebody not pay ~$45 for the OEM parts like I did.


I will edit this post when I do the install later on this week with any problems I run into.

EDIT: Keeping with my promise: the installation went reasonably well. I used a Magnaflow 23909 for my new cat/silencer setup.
It's worth noting that the shorter threaded side of the spring bolt is intended to screw into the cat/silencer pipe. The 23909 is not threaded in these holes and the flange is thick enough that only ~2 threads end up protruding on the other side of the flange hole. I simply turned the bolt around and used the longer threaded side to secure it to the flange. Problem solved.

9krpmrx8

iTrader: (46)

Autozone sells the stud and spring that works in the DIY section for a few bucks.