Exhaust install technicalities: Welding

[twitchy]

can you weld together 2 bits of piping

(say i have a 2.5" cat outlet and i want it to go to a 2.5" resonator inlet)

rather than expanding one and clamping, can you kind of butt the two up together and weld the seam? Or is it better to expand / clamp?

thanks

Twitchy

[019]

yes you definitely can

[twitchy]

but will it hold up and not break or crack or leak or anything...what i mean is is it as effective as clamp and expand?

[Pacman]

It won't as long as a skilled person welds it. If they weld it, it'll hold very well.

[orion::S14]

More effective...!

A good weld is stronger than the tubing on either side of it.

My whole turbo-back system is butted and welded, and has held up great, even under turbo heat and abuse.

- Brian

[sr240mike]

Use a pipe expander to widen the pipe facing forward towards the engine then slide the other in and weld. http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=37354