SoFlo Diesel Dual 6" side by side Cat Stacks
Our custom stacks are Engineered to flow more air and give you the looks, and performance gains you desire.
Although there are several competitors offering cheaper and inferior alternatives, SoFlo Diesel's quality and attention to our products far surpasses the competition.
We strive to give Diesel Enthusiasts the most soild, best looking, and highest quality stacks available.
We use thicker material than our competitors, which yeilds less drone, more soild mounting, and lower stack temperatures to keep your load safe.
We love what we do, not to mention our stack kits are hand welded, cut and coated in the U.S.A
Our Stack features
- Our DSS(Dual side by sides) use an effective and clean box design, that allows for great flow, great sound, and super solid and easy bed mounting.
- Each kit is designed to fit as many configurations of trucks as possible. which means that the kits are universal, allowing for easy installation whether you have a Dodge, Chevy, of Ford, long bed or short bed.
- All stacks are powdercoated, using a slightly modified process, to withstand the heat, and retain a like-new finish for years to come.
- The Standard 40" total height puts the top of our stacks right in between top of rear window glass and below the roof line on most trucks.
- Note, When selecting the perfect height for your rig, our Stacks are measured in total height, from bottom of the bed to the tip of the stacks.
- Easy, bolt-on design, makes the Stack installation process as friendly as possible. The things such as bolt on installation make the difference between a fun time, and a nightmare.
- All stacks include all needed hardware for mounting stack to the bed
- Optional Inlet Kits are needed if installing Our stacks to your exsisting exhaust system
Most stacks are built to order, hand welded using TIG and MIG processes.
Normal Ship time is 5-7 business days, depending on sizes and color
Note these finishes are NOT DPF Safe. Please contact for DPF In-Tact options!
Showing reviews 1-10 of 24 | Next
Posted by zach on 30th May 2017
The stacks shipped pretty reasonably quick. Packaging was good but i did end up with one of the mouting holes bent but fortunately the paint was flawless. The mouting kit came with everything i needed for a fairly simple install. Overall it makes my 6.7 cummins look great and sounds great too. Build quality is everything i hoped for. You definitely get what you pay for.
Posted by Nate S. on 12th May 2017
Just received my stacks and I couldn't be more impressed. Amazing quality and they look fantastic!!! Couldn't be happier with this purchase and SoFlo Diesel knocked it out of the park with these! Highly recommend them to anyone!
Fit perfect look and sound awesome!
Posted by Unknown on 1st Feb 2017
Made good and heavy. Fitment was spot on and it really makes my LBZ sound awesome! Do be prepared for some drone tho!
Posted by Unknown on 30th Sep 2016
Awesome quality an well packaged. Quiet in the cab! Best looking stacks around.
Posted by Charlie T. Brooks III on 30th Sep 2016
Great product and company. Very pleased. I would recommend this company to anyone.
Posted by andrew randolph on 22nd Feb 2016
great product the quality of the work is next to none the stack looks sick on my truck would recommend to anyone look at them to get them they are well worth it
many try to copy but cant touch Soflo!
Posted by Shelby on 14th Dec 2015
bought a set of dual side by side 6" cat stacks and couldn't be happier! really really well built, welded and powdercoated. on my lb7 it sounds amazing! get compliments everywhere I go
Posted by lane on 28th Nov 2015
The stack look great an sound even better the coating that is put on then is ant as tough as I hoped it chips pritty easy but overall 5 stars
BETTER THAN EXPECTED
Posted by ZACK on 2nd Sep 2015
EVERYTHING LOOKS GOOD ON THE INTERNET. IVE DEBATED SINCE DECEMBER OF 2014 TO PUT STACKS IN. I DONT LIKE THE NORMAL STACKS AND WHEN I SAW THESE THEY LOOKED GREAT. FINALLY PULLED THE TRIGGER AND AM NOT REGRETTING AT ALL. GREAT CRAFTSMANSHIP AND LOOKS AMAZING. IF I GET A DIFFERENT TRUCK WILL BE ORDERING ANOTHER SET.
Posted by Unknown on 22nd Jul 2015
From the bolt holes to the gloss coat to the welds and beyond some of the best metal work I have seen. They certainly get people's attention as well. Installation was a breeze as well with the stack kit.
Showing reviews 1-10 of 24 | Next