Hi everyone,

I was hoping you guys can help. I just bought an invidia 60mm test pipe used, but never installed. The problem is that it is missing most of the bolts and nuts.
Can I just buy the same size bolts and nuts at the hardware store? Or are they special bolts that hold up to the high temps? Can I just use the ones that are already on the cat and header?

Thank you.

 

your tp will need new bolts the Honda oem ones I believe are those awkward spring bolts. You should be able to use any old bolts from a hardware store. just take the few you have and find some the same size

 

Thanks for the help

 

Do yourself a favor and use stainless steel hardware...

Sent from my SM-G920P using IB AutoGroup

 

It's been many years, but I think I just used the hardware that was holding the cat on...

 

The spring bolts are available at AutoZone. Not the right ones but they'll do. There's a doughnut washer between the header and cat to seal that area you might need too. "Correct" solution is to get two OEM spring bolts and the OEM washer. Rear bolts, nuts, and lock washers (there are 3 sets) will be needed as well 'cuz the OEM cat has threaded studs back there and the test pipe does not. Bolts and nuts usually come with testpipe/HFC kits.

Stainless steel bolts are available everywhere. You may have trouble getting the existing bolts off the car. Soak them in PB Blaster for several days first. The top bolt on the cat is especially hard to get off while the exhaust is on the car. Even with the exhaust on the ground we were unable to get this bolt off a buddy's system with either electric or air rattle guns.

"Test pipe" will probably immediately light the MIL (CEL) and the exhaust will stink.

-- Chuck

 

If you need them, I'd buy the spring and spring bolts from Honda. You may not need those two, though. They seem to hold up better than other bolts. Mine are original from the year 2000 (never driven in salt).

You can buy (3X) 316SS bolts rather than 304SS and nuts for the rear hardware.

Resist every urge you have to crank any of the fasteners down. I think the fronts only need 15LB and the rears maybe 30-40.

Remember that 304/316SS bolts are substantially weaker than C10.O and even C8.8 bolts. So ....don't crank them down.

Use a small dab of anti size...especially on the SS bolts.

 

Thanks guys for all the info and useful tips! I was hoping to get this bolted up this weekend, but this heat is out of control.

 

Suck it up buttercup. It will only take 20-30 minutes.

 

It will only take 20-30 minutes. -- Once it's on the lift or jackstands and only if that top bolt on the cat will come off!

-- Chuck