These weld up easy even when welding with FCAW machines, I love total flow products. Thick enough to not have blow through. The material cleans and preps nice too.

I used this on my diesel tuck just to mellow the rasp out a little bit. It did that and gave it a deeper tone over just being straight piped, but didn't sacrifice the overall sound. If you plan on welding this in take the extra time to clean the ends since there is an oily residue on the metal.

Size, coming straight of the headers there is hardly any difference in the size of the headers and mufflers. Less to drag or bend. And the sound is beefy, it may be a little loudfor some folks.

Works great. straight piped my whip.good idea.and bad idea .lol.it made a huge difference.my neighbors appreciate it

Makes the tech man happy so I am happy. They don’t do hardly anything for noise control, but it’s on a race car so who cares.

Great quality and reduces drone. I Purchased the 3 in in/out variant and welded it onto my turbo acura integra with a 3 inch turbo back exhaust. My exhaust sounds perfect and no drone while cruising.

This muffler is by far the best sound for the price, I would definitely recommend these if you want to remove your stock muffler, it not annoying, the sound is perfect from the inside and outside!

Our track has been stuck with abiding by the sound ordinance a lil more than others. So we all had to get mufflers. These are working out great.

Came fast and easy to install I put it on my Ford F800 diesel, was straight piped and this quieted it down a fair amount. Sounds great.

DEPENDING on your vehicles application (my 2012 5.7 Tundra) I left original cats, Installed an Xpipe and through these on the back. What a difference. Sounds absolutely, no drone for me. And has a very nice see growl all the way through the rpm. I had some longer ones prior somewhere between 8”-10” and still was impressed but slightly quieter. Overall, would definitely buy again!

Does the job. I'd give it more stars if it were a slip fit over the pipe like 99% of the other resonators & mufflers on the market. This one must be butt welded in or have your pipe expanded.

Used this on a Polaris RZR XP Turbo Side by Side, well made muffler welded in pipe nicely. Quality is good sounds great but very loud.

I get 2 of the 7" and i put it on a chevrolet silverado and the sound its great the sound it's so diferent from all the others brands. I really recommend this muffler. Cheap and amazing.

Product welds are nice. Seems solid. Bought this to get rid of some unwanted rasp. I paired this with a totalflow muffler. Still have some rasp and drone. Will be adding a baffled style muffler to the mix.

Good item but sound is bit mild. Not exactly what i was looking for. I was hoping for aggressive sound. But its definitely value for money.

Great little muffler. I'm using it on a Formula Ford 1600 push rod engine. Not known for a very good sound with an open header but this muffler takes the edge off of it. Nice.

couldn't pass them up at the price I got them, picked up 4 total for under twenty bucks. Gotta love sales. That's my feedback.

I was looking for some mufflers to quiet my truck down a bit. I love the sound of a V8 but neighbors might not and cop like to give out "driving rewards" for too loud. So I want take out the raw loudness of no mufflers while keeping a bit of sound to feel my need to sound like I got a well tuned race car. I also had an idea to do dual turn outs in front of the back wheels which meant I couldn't have anything to long or it wouldn't work. I saw these mini mufflers and thought the size would be…

Construction was very good, appearance & quality was first class. Also was well packaged & arrived in a timely manner. I’m using them on an open exhaust with headers, no X or H pipe, and took some of the rasp out of the exhaust note