DNA Motoring ZTL-25SS 16 Pcs 2.5 Inches Stainless Steel DIY Custom Exhaust Tubing Mandrel Bend Pipe Straight & U-Bend Kit, Universal Fit

Just landed at my front door. Great looking quality, good thickness and it is stout. It will be extremely easy to install due to the flared ends, the box was destroyed, but they used enough tape to secure a runaway train, and all pieces are there and nothing was dented or bent. It will be going in my Corvette very soon.

Edited: After finally getting them installed I must say these are of great quality and a great kit for the price 👌 shipping to Hawaii is something else and can't blame the seller 👍 ‐-‐------‐------------------ I got the 2.5" stainless piping, which definitely is a great product and deal ... but it was missing a 45 degree angle pipe. There were supposed to be 4, but this set only came with 3 🤦‍♂️. Also a little weird that I had to reorder this as the first shipment was never sent. Amazon provided a tracking number but it didn't go anywhere for a couple weeks 🤷‍♂️. First time encountering that with Amazon 😑. Other than that, I would've said 5 stars

good quality, easy to work with Tig welds good

Decent material for the price. A little thin, especially in the bends which makes it tough to weld if you're not careful.

You can weld with em nice. Ran my truck with a connector pipe to my cats from the header and they have so far held up. Will see long time review. Will be back to do so. A little thin though but still nice. Headers, this and then cats. And they make nice sound. You can hear the valves through the exhaust anlittle bit and I like that. Makes it sound stock car ish. I would imagine others would find the loudness annoying though. Will be finishing up full true duals here soon with a dual in/out connecting muffler soon. Just have to finish the old girl. 07 silverado lh6 2 month review. They're still holding up with blue demon flux core stainless wire. No gas. I ran some 308 rod on it as well and they weld nice. Must run 43 amps with the rod and run fast. Don't hesitate or you'll blow through. With 308 blue demon flux core wire. I ran it at 19 with 275 wire speed and yah gotta run that fast too. Don't hesitate. Weaving tiny circles as you move quick helps wet the toes better. But you don't need to. This runs better if u run it like a stick welder. Mig with 90/10 argon/co2 prolly woulda been best. But oh well. First time running the wire. Wanted to try it out. It's worked out. However long review. Months later. Exhaust hasn't rusted as I popped it with acetone and welded with proper wire. I need to redo the flex pipes and I may have em too tight in the exhaust and they're breaking apart a bit. Otherwise has held up very well. Still sounds good since I did it almost a year ago. Has the desired rumble. What's nice about this tubing. Is if u need to open up a hole for o2 Porta. Just put a dot on the spit and hold it there with the welder til it pops through. Makes an almost perfect circle and then you can run a step bit to open it to the desired size for bungs and defoulers. Quite nice. I'm going to be redoing my entire exhaust here soon as I had alot of blow through but I finally bought the proper gas and solid 308 wire to do it with mig weld tacks when holding in place and then I'm gonna tig it out. Finally got a decent welder instead of the easy flux titanium from harbor freight. Which welds nice but doesn't do everything I need to do. Still good to pull around though. I got the titanium 140 multiprocess and it works good. Not amazing. But can be fine tuned to be adequate. I'm a professional pipe and tank Welder. I can recommend this tubing and that welder.

Great quality and they fit good bends. Great sound. No rust after months of heat and wet.

Great assortment of bends and straights, welds decent. The kit that i received has slip flanges on one end of each pipe that can be welded, or as i did, cut off for a butt weld. Cuts well into pie cuts, for smaller clr bends. The 180*s were a little ovaled when cut in half and stacked, not sure if this was my cut, stress in the material or the mandrel bend itself.

Great product

arrived quickly. box was less than ideal for the goods and was rather beaten, but every pipe was perfect. quality of bends are excellent. cant beat this price for mandrel bent stainless system with this much piping. i can do nearly two full exhaust systems from this kit. highly recommended.

Packaged well, nice heavy wall stainless pipe with clean bends. I installed full true dual exhaust from headers back on an 81 F250 and had no trouble getting every bend I needed. Welded all seams solid with stainless wire. Can't comment on longevity or actual quality of the stainless alloy but time will tell and it looks beautiful.

This is the best deal going for stainless mandrels anywhere. Quality is top notch, bends are super smooth with no deflection. Will purchase more of these for custom exhausts in the future

Nice finish on the tubing. Welded together using stainless flux core wire. The tubing thickness is .050" The first delivery did not arrive, the supplier expressed shipped the next delivery and it came to Canada in two days! Very happy with this purchase.

Nice kit for the $$. Seems to weld good was able to make a nice stainless exhaust for my custom car build.