DNA Motoring ZTL-25SS 16 Pcs 2.5 Inches Stainless Steel DIY Custom Exhaust Tubing Mandrel Bend Pipe Straight & U-Bend Kit, Universal Fit
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Availability:
In Stock.
Arrives
Tuesday, Jun 2
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Style: Stainless Steel
Size: 2.5Inch
Features
- Specification: 18-Gauge Piping Walls ; Inlet / Outlet Size (IN): 2.5"OD
- Easy To Use: Slip Fit Joints to Provide Easiest Fabrication
- Universal Kit: 4 pcs 48" Straight Pipes, 4 pcs 90 Degree Pipes, 4 pcs 45 Degree Pipes, 4 pcs 180 Degree U-Bends
- Sturdy Structure: Made of High Quality Stainless Steel with Computerized Mandrel-Bends for Strength and Durability; i.e. Maximizing Smoothest High Exhaust Air Flow Rate
- DIY Custom: These Exhaust Bend Kits Include Enough Tubing To Allow You To Run Your Own Exhaust System The Way You Want It
Color: Metallic
Brand: DNA MOTORING
Material: Stainless Steel
Shape: Round
Installation Type: Bolt-On
Brand Name: DNA MOTORING
Manufacturer Part Number: ZTL-25SS
Manufacturer: DNA Motoring
UPC: 194286051976
Model Number: ZTL-25SS
Unit Count: 1.0 Count
Manufacturer Warranty Description: Please contact the seller directly for warranty information for this product
Included Components: 4 X 48" Straight Pipes / 4 X 90 Degree Pipes / 4 X 45 Degree Pipes / 4 X 180 Degree U-Bends
Item Type Name: DNA Motoring ZTL-25SS 16 Pcs 2.5 Inches Stainless Steel DIY Custom Exhaust Tubing Mandrel Bend Pipe Straight & U-Bend Kit, Universal Fit
Installation Type: Bolt-On
Color: Metallic
Shape: Round
Material Type: Stainless Steel
Item Dimensions L x W: 48"L x 2.5"W
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If you place your order now, the estimated arrival date for this product is:
Tuesday, Jun 2
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To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Style: Stainless Steel
Size: 3Inch
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.
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Reviewed in the United States on March 19, 2026 by David Willis
Style: Stainless Steel
Size: 2.5Inch
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
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Reviewed in the United States on January 24, 2022 Reviewed in the United States on January 24, 2022 by Dev
Style: Stainless Steel
Size: 2.5Inch
Great product
Reviewed in the United States on May 22, 2026 by Joe Hacker
Style: Stainless Steel
Size: 2.5Inch
Decent material for the price. A little thin, especially in the bends which makes it tough to weld if you're not careful.
Reviewed in the United States on November 20, 2025 by Steve Rossi
Style: Stainless Steel
Size: 2.5Inch
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.
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Reviewed in the United States on July 5, 2022 by Christian
Style: Stainless Steel
Size: 2.5Inch
Great quality and they fit good bends. Great sound. No rust after months of heat and wet.
Reviewed in the United States on January 4, 2026 by Michael k.
Style: Stainless Steel
Size: 2.5Inch
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.
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Reviewed in the United States on August 18, 2025 by Evan hughes
Style: Stainless Steel
Size: 2.5Inch
I used this tubing to make an exhaust on a project truck. I tig welded the tubing with 304 rod and it looked amazing for like a month. The weld joints that I used filler are still shining and bright. The rest of the pipe went rust colored. If you're looking for your exhaust to stay shiny and bright, this isn't the pipe. If you're just looking for a cool inexpensive welding project to do and stress over, this tubing works really great. I would not plan on clamping the joints with traditional u-bolt style clamps. I don't think the slip joints would seal properly. The kit is very inclusive and definitely has enough tubing and bends to do a pretty nice set of duals. I'm pretty satisfied over all, the low score is because it rusted up so quickly. It's not as bad as cheap steal, but I wanted at least a dull stainless. Anyways, happy building and I'd buy this again if I needed. The price is right, so...
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Reviewed in the United States on October 14, 2023 by jena s lewis