I used CAPS and the PNC lookup but still couldn't come with a size. I'm gutting my cat this weekend and putting my new exhaust on, and I'm pretty sure I'll need new bolts for the catalytic converter. Does anyone know their size or if they're the same as the other exhaust bolts?
Outside of Corona: "That sucks, peace out..." (jamie walks away)... "Sweeet, what we doin?" -Zac Tim's garage (prior to motor install): "Im gonna smoke real quick, that way if you fuck up I am already nicotined up" -Tim
#124703, "RE: exhaust bolt size?" In response to Reply # 2
Originally posted by CODE4 I believe they are 14mm. Get two bolts, four washers, and two nuts.
that's the head size, not the bolt size. a 14mm bolt would be as big around as your finger (for an average hand size)
IIRC they're a 10mm by 1.25 thread
Erik P. Official 2GNT thread Hijacker Some say that he's driven over more Covenant than he's shot, and that his grenades aren't where you'd expect them to be... All we know is, He's not The Stig... But he is The Stig's Spartan cousin!
#124704, "RE: exhaust bolt size?" In response to Reply # 3
Neg, If I remember correctly you use a 17mm socket/wrench on those. At least I did on mine. The OEM cat has studs fitted in the flange. If I could jack it up now I could check but 10mm seems a bit small.
#124706, "RE: exhaust bolt size?" In response to Reply # 4
Originally posted by CODE4 Either way, there is only one way to verify.
got yah on that one
______________________________________ ______________________________________ "Don't fear the weapon, fear the soul of the warrior using it." "My CEL only goes off when i remove my battery."
Best sum up of working on a 2GNT DR1665- "#5. Spike that motherfucker on the garage floor and grab a beer. You deserve it."
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Outside of Corona: "That sucks, peace out..." (jamie walks away)... "Sweeet, what we doin?" -Zac Tim's garage (prior to motor install): "Im gonna smoke real quick, that way if you fuck up I am already nicotined up" -Tim
#124713, "RE: exhaust bolt size?" In response to Reply # 7
Well we were both wrong. whoops.
Erik P. Official 2GNT thread Hijacker Some say that he's driven over more Covenant than he's shot, and that his grenades aren't where you'd expect them to be... All we know is, He's not The Stig... But he is The Stig's Spartan cousin!
#124724, "RE: exhaust bolt size?" In response to Reply # 8
Turns out I didn't even need to use new bolts. The stock cat has a threaded flange on the dp side, as mentioned above, and the bolts were still good to be reused. On the other side, it has studs and you use nuts to attach the catback exhaust. The studs were way too big to fit through the SRS (ebay) 3" exhaust flange, so I had to drill them out.. big pain in the ass!!! Finally got them on.. very very snug fit though. And the fitment of the rest of the system was a PITA. But it's all bolted up, no exhaust leaks, sounds great too. I gutted the cat and there is no CEL, lol. So I didn't bother with non-foulers on the O2 to avoid the CEL.
Now I'm just waiting on the dp + exhaust manifold and my oil lines and the turbo install will begin.
#124725, "RE: exhaust bolt size?" In response to Reply # 9 Mar-22-09 09:24 AM by CODE4
Originally posted by Mike431635 The studs were way too big to fit through the SRS (ebay) 3" exhaust flange, so I had to drill them out.. big pain in the ass!!!
Stock cat studs not fitting a 3" catback? Hmm...
Originally posted by Mike431635 Finally got them on.. very very snug fit though. And the fitment of the rest of the system was a PITA. But it's all bolted up, no exhaust leaks, sounds great too. I gutted the cat and there is no CEL, lol. So I didn't bother with non-foulers on the O2 to avoid the CEL.
Ebay for you. And a gutted car is actually worse for performance due ot flow. CEL will pop up eventually.
#124734, "RE: exhaust bolt size?" In response to Reply # 12
Yeah, I'm gonna get a 16.5" long section of 3" steel, a couple 3" flanges, and make one when I get the downpipe. I figure if the welds are ugly, only me and God will know about it lol
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sorry had to do it