2000-2020 Chevrolet Suburban 1500 5.3 L V8 Vortec

Perfect fit on my 80 k20 small block no leaks great sound I highly recommend

Looks nice and very easy to install. Best for 1st time mods like me. I just got a cheap ratchet set from Amazon for 15bucks and it took care of all the installation. One question tho, Can I leave the top cover off?

all my life i have put Headers on all my race cars and street Cars and Never saw a Finer set of Headers what a great Purchase

Not nearly as loud as I thought it would be but for her it was perfect, not nearly as loud as it is in the video maybe that’s cat less but overall not the worst item to install and it sounds good and looks decent

These headers fit great in my 65 buick gran sport with a 6.0L LS/TKX 5 speed. I have a hydraulic clutch however the look like they would also work with the factory Z-bar linkage. My engine is hammered as far back and as low as I could get it in the chassis, hardly any header bashing was required to get them to fit. Great product especially for the price

Easy to install and love the sound. Also there is a kick of power.

Fantastic fit and finish. A third the price of the "name brands" and does exactly the same thing. Even includes a check valve built into the outlet hose.

Look and feel great, much needed for my charger!

This tank fits my FK8 Type R perfectly! Excellent fit and finish and easy to install. Why pay 3 times as much for something else with a more recognizable "name" stamped on it? No need - get this one!

Left side header has quite a few scratches in it. For the price I really can’t complain but if you want perfection this isn’t for you

Solid construction of equipment. Everything correct for my 2014 Ram

Fit perfectly in 1994 Miata. Great price. Not really stiff. Used for daily driving. Can drop about 5 inches (way. too. low.)

Removed old cat/manifold and installed with aftermarket cat from eBay. No it isn’t meant for an LX but it does fit. I also ran over a deer that someone else had hit, of course, the day after I installled it and it is all still in place and rock solid. Would buy again and recommend to others. Has been on for a few weeks.

At first no one wanted to install them because they wasn’t the high class name brand and because of the fittment. I found a shop (Johnny’s Garage) and he was up for the challenge. He pointed out a lot of flaws and by him being a welder he was able to do some modifications and fabrication. Curtain things didn’t align up such as the gaskets, the fitting of the headers that was too close to the undercarriage of the car and where the headers bolt on to the oem braket. Other than that he made it work and I was happy with the 3 day project waiting on parts… smh. I spent more than I was supposed too :( on this project because he was the only shop that wanted to take on this project. My car sounds amazing tho🫡 Thanks Flashark for your affordable price compared too others.

I ordered this header as a temporary replacement for a cracked "name brand" header. I'll be completely honest, due to the price I was not expecting anything great but I was surprised, it's actually pretty good.

I did have a hard time fitting the header. The two banks weren't spaced far enough apart so I did have to use a big pry bar and hammer to get bank 1 into the studs. After this, I was able to zip the bolts into the studs with no issues. The header did seem just a touch shorter than the "name brand" header I had before. Neither of these things were an issue for me, for the price it's about as great as I could have expected. Build quality seems on par with the other header I had and the O2 sensor locations are actually better (perfect IMO) on the flashshark header.
I don't expect the included gaskets to hold up forever, if I am able I will update this review next drift season.

I did wrap the header with DEI titanium heat wrap, the "polished" finish looked great before wrapping.

All In all, I bought this header for temporary use, but I'll be using it permanently because it seems like it's going to be completely fine, in fact better than a "name brand" header.

You will most likely struggle a little bit during install but for the price (which is REALLY GOOD) it is completely worth it.

I would recommend this header to a friend and I would buy another!