I'll vouch for not being able to reach the back side. I added duals when the car was orginally single. There's a tapped backing plate from the factory if the exhaust was originally on that side. I ended up just screwing into the sheet metal on the side with no backing plate and it's held up fine up to now. If there's a backing plate, you should be able to drill and tap larger holes.
I added duals when the car was orginally single. There's a tapped backing plate from the factory if the exhaust was originally on that side. I ended up just screwing into the sheet metal on the side with no backing plate and it's held up fine up to now. If there's a backing plate, you should be able to drill and tap larger holes.
