Exhaust: Crush bends vs. Mandrel bends

by **toy4x4boy** » Sun Sep 12, 2004 7:01 pm

Is it a big deal to go with crush bends over mandrel ones? I haven't been able to find an exhaust shop that does mandrel bending. What is everyone's consensus on this? Is it really THAT big a deal?

Website · by **TRD_solaRa** » Sun Sep 12, 2004 8:43 pm

it really depends on the quality of work you want done to your car. Mandrel bending is a skill that not many shops can accomplish or replicate. So being that it is a skilled job, it'll cost more but you'll get a much better quality job done. Mandrel bending allows for no "crushed/crimped/indented" bends in the piping. Hope this helped some. Shootz.

by **MalBandito99** » Sun Sep 12, 2004 8:52 pm

When you mandrel bend a pipe, you retain the shape of an "O" ( circular shape) through the bend, just like straight pipe. Crush bend creates a "0" (oval shape) through the bend, increasing pressure at that portion of the pipe and reducing flow by about 25%, depending on the severity of the bend.

Unless you got s/c, intake, and all that other jazz that requires mandrel bending, you shouldnt be worried about it that much. If its available, get it. If not, don't sweat it.

by **toy4x4boy** » Mon Sep 13, 2004 9:18 am

Does crush bending effect performance enough to make a noticeable difference? Thanks for the replies!

by **Astro** » Mon Sep 13, 2004 10:12 am

Couldn't you just buy mandrel bent pieces and take them to a shop to weld?

by **SolaraT** » Mon Sep 13, 2004 12:09 pm

Just get the best quality stuff man. Don't settle for less. I don't. :drinking:

by **MalBandito99** » Mon Sep 13, 2004 6:19 pm

solarat wrote:Just get the best quality stuff man. Don't settle for less. I don't.

Nice to live by, but those who arent as financially able to have to do with what they can. And theres nothing wrong with that at all.

by **HKSV6SLE** » Tue Sep 14, 2004 2:24 am

mandrel bending really is only used by ppl who either have lots of money or race cars. :drinking:

by **SolaraT** » Tue Sep 14, 2004 4:31 pm

Nah F that ish I wait if I don't got the money. I don't got it like that either.
But to each is own ya know. Quality over Quanity 4 life.

Website · by **Turbosolara** » Thu Sep 16, 2004 12:12 am

let's say the pipe has diameter 3" and you did crush band, where the crush part has wrinkle cause the section of pipe is 2.5". so that part will restrict the flow and the result is that you going to have a 3" pipe noise but 2.5" performance. i hope this clear it up

Exhaust: Crush bends vs. Mandrel bends

Exhaust: Crush bends vs. Mandrel bends

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