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Reviewed in the United States on August 24, 2024
This company ( DIAMOND EYE Performance) has a very good reputation . But I don’t know how they would handle the quality of their products. My 2.5” crossover pipe came with a lot of junk inside. I’m not the only one who complained about this issue and still happens.If this product wasn’t extremely necessary for my truck I will not be using it at allI really believe that something wrong is happening in the management team, when nobody tries to address this issue on the right way,Because of this I think they don’t deserve 5 stars. 6.5 engines are really hard to find on this days, IF THEY GET DAMAGED FOR THINGS LIKE THIS.I really hope they can find someone who brings a good interior cleaning in this pipes, if not then reduce the price
Chris
Reviewed in Canada on July 6, 2024
Great replacement design.Very happy with the item.A+++++++
Jb
Reviewed in the United States on March 16, 2024
Fit perfectly . Looks like a quality part
Durf
Reviewed in the United States on October 15, 2023
Fit perfectly on my 1999 gm k3500 6.5 turbo diesel. Engine sounds better and turbo spools a little quicker with this larger than stock diameter pipe. Im happy with it 👍
Caleb
Reviewed in Canada on September 2, 2021
Ordered Dimond eye 2.5" cross over for my 6.5 right out of the box looks used and beat up not impressed and bent in so the 2 piece won't go together like there supposed to.
Customer
Reviewed in Canada on February 3, 2021
Easy to install,better flow,very pleased.
P S
Reviewed in Canada on February 22, 2021
Pièces s assemble très bien.
Randy Sherman
Reviewed in the United States on September 14, 2019
Fits like a glove and if very necessary to compliment the Diamond Eye 4" exhaust. You will notice an increase in performance. I upgraded my turbo to the Holset 40X kit and the truck has a lot more power and better mileage.
Rochester
Reviewed in the United States on August 22, 2019
the fit is good i just wish it was not in two pieces it may leek at the joint then ill have to weld it together but it is working perfectly for now
Chris Ault
Reviewed in Canada on June 27, 2019
Came with everything it said it did. Haven’t installed it, sold the truck. If you need one I have one
Ahab
Reviewed in the United States on March 29, 2018
Super easy install and very noticeable performance kick after installing 4" exhaust. The old pipes were bent and restricted.
Moppman
Reviewed in the United States on October 30, 2018
Bends are good, no stress marks. Came with flanges and ubolt as advertised. However, very sloppy work especially leaving 100% of the chips in the tube. Any machine shop I’ve ever worked in, it’s a requirement to blow out all tubing after a cut. So while the cut, bend, and flare are all good the workmanship is lacking. Overall 4/5 stars!
Brad
Reviewed in the United States on September 12, 2017
This may be the best upgrade you can make to the weak knee 6.5 turbo diesel. I had it professionally installed at a muffler shop. I was concerned about the possibility of broken studs so I didn't want to take a chance. They welded the center together which is obviously a better connection than the clamp that it came with.I notice a major difference in how fast the boost builds, as well as nice throaty, midrange power that seems to build rather than drop off. Engine actually runs cooler! The quality of this kit seems to be top notch. It's aluminized metal I think, which should last forever (down south)
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