• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

Downpipe bolts?

Bedwards

Bedwards

New member
How do you guys manage to get the stock downpipe off!? I sprayed a ton of PB Blaster on it and worked on that **** for hours. The bolts connecting to catback exhaust won't budge. The the next problem... I can't figure out how to get decent access to the nuts on the manifold. Any ideas? I'm frustrated. Lol.

I'm also curious if anyone knows the exact size of the bolts/nuts under there (diameter, thread pitch, shank length, grade, head and thread length), just incase I do break or strip them and need to go find a replacement.

Thanks guys.
 
Last edited:


skidoojames151 said:
big ass extensions with a u joint, but i also had the car on a lift...try getting at them from the top?
Click to expand...

I lowered the back of the cradle for more access, if u wanna try that.
Also try using a torch to heat it up, makes bolts easer to come out
The bolts are metric (some were between 15-18) u will need them to be deep well too
 
Last edited:
If they're really that hard to get off, you're probably going to break or strip them. Just take a cutoff wheel and zip the nuts off to get the exhaust separated off the cat-back then drill out the studs. Just run bolts like I did after that. As for the manifold to DP bolts, lots of PB blaster, long extension, swivel adapter, and some elbow grease should do.
 


use the size socket you need and a 4" extension and you can get directly on the dp bolts up at the rear mani. your arms are gonna itch like a mofo afterwords though lol. i think there is fiberglass in the dp tunnel.
 
I jacked the car up, used a few extentions and a ratchet first to get them loose then used a impact gun. My impact wouldnt get them lose, I had to use the ratchet.
 




I soaked mine in blaster over night and all the next day and that evening stripped the bolt head on the rear of the stock dp. Said F'it. Sent it to the exhaust shop and they put on my plog and dp, rewelded a new flange on the front of the resonator pipe. Cost.... $60. Worth every penny.
 
You must log in or register to reply here.
Back
Top