Band clamps...preformed? (stepped) Or just standard?

[LSxChevelle]

Bought the full Pypes dual kit and instead of using the u-clamps that make it hard to pull tubing back apart I want to do 3" band clamps. I noticed they have the standard style and a preformed since the O.D. on tubes going together will be a little different. Also anyone know where I can get them the cheapest?

Standard
https://static1.pt-content.com/images/noimg.gif

Preformed
https://static1.pt-content.com/images/pt/2012/02/Stainless_steel_band_clamp_w_step_3-1.jpg

[dontlifttoshift]

I have always used the standard and then they form to the step when tightened. I don't know about price but napa keeps them.

[TheJDMan]

If you are clamping a stepped pipe use the stepped clamps. There is a reason why they make two different styles. Summit sells them for under $8 each. I just ordered 6 for my exhaust.

[Randy67]

I vote for the stepped clamps as well. Summit does have good prices on them.