Correct exhaust clamp

I use the ones called a “step clamp” you can use the flat band clamps, but they can be aggravating in certain positions. I also smear a little grease on the inside of them and anything else you want to take apart in the future. Like exhaust tips,elbows etc.

 

As @062 stated the stepped clamps tend the work much better with flex pipe to steel pipe. A small bead of high temp rtv sealant to the clamp joint will help seal small leaks at the seam.

I prefer to use flat style bands on pipe to pipe joints . The "easy seal" brand comes to mind as high quality. These clamps stretch when tightening so they are considered 1 time use. The biggest weak point on most cheaper brands is the bolts will snap when trying to close the gap.

 

I like the stainless step clamps, the type that have a full circle, no gaps.Theyre made like a silicone hose clamp, overlapping an inch or more. Others with aluminum foil for gaps, always leak, break when torqued. I usually keep them as long as they’re working, often replacing new shiny ones with new mufflers, and elbows, re using the old ugly ones if needed down under. Stainless last’s a long time, they’re costly, but worth it.I keep any old one that’s still good. For a spare. Also have patched a cross pipe with a short straight 5” slip joint, as only the end at elbow was rusty.Saves $$$. Ready to re do all of mine soon. Y pipe always cracks at the weld. The flat ones are good for a small hole, To cover up, till you can replace pipe.

 

Use a preformed or a "stepdown" clamp. Tighten it evenly. I prefer Donaldson. The same folks who make the filters. I like their design. Rarely do i have problems with theirs compared to other brands. They about $15

 

5 inch exhaust flex pipe gets tight on one end and way loose on the other end,I have tried to figure out the problem but it just wont work.10 foot section..I never had any problems with pre cut ones.any ideas.

 

Are you using one like this?

 

Yes I am...I bought a 10 foot section,cut the proper length and the flex stays big over the S pipe no matter how much you turn the flex pipe

 

Yes I have the same as you have in the pic

 

Have you measured the pipe? I had a isx that was a 4 or 4.5” down pipe.