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Your cart is empty.Race-proven performance and a powerful deep muscle-car sound to match, with a PowerFlo Exhaust System from SLP Performance Parts. This exhaust system includes a pair of our PowerFlo mufflers and Loudmouth II muffler, which use a straight-through design and ceramic-wrapped perforated core to significantly outflow traditional chambered and turbo-type mufflers. Combined with our Dual-Dual slash cut polished tips, you'll really feel and hear the difference!
Kevin D
Reviewed in the United States on March 15, 2025
Love this exhaust on my 96 Z. Fit ok only minor adjustments needed. If you don't have converters it's gonna be LOUD!!! Which is exactly what I wanted. At highway speeds it actually has little to no drone and you can have a normal conversation without yelling.
Sean Flavin
Reviewed in the United States on June 16, 2024
This is a slp loudmouth 1 and it comes pretty much as pictured. Quality and fit is good, sounds great. I did have to separately order some 2.75 inch u clamps as they accidentally sent me all 2.5 inch u clamps. The band clamps were all correct. I simply used a cut off wheel for my old borla system and slid this slp loud mouth onto the factory y pipe and outward. Good system for the money. Only cost me $10 dollars to replace the missing clamps.
Speedyg
Reviewed in the United States on June 16, 2023
For such a high price tag and name brand iconic to the Camaro nothing fits right. The clamps are too small, the pipes don’t fit together, the hangars are all in the wrong locations, and what they call a muffler is a gimmick. I had to return it and that was a headache also.
Timothy Wayne Bell Jr
Reviewed in the United States on January 30, 2023
Easy install , tip clamps were too small had to buy 2 3/4 Ubolts... other than than More Than Happy
Brandon H.
Reviewed in the United States on August 20, 2021
Pipes were too short, could barely get it to fit together and the exhaust clamps that were sent with the kit dont fit. Oh and they sent two passenger side exhaust tips. Not happy and will never be ordering from here again
Jerrod Andrews
Reviewed in the United States on July 14, 2021
On the fence about 2 stars on this one. The pipes were bent well and of good quality. The slant cut tips look good. But, could definitely be polished better.The pipes openings are wide and allow the other sections of pipe to slide in easily which is great for adjusting fit. However, one tube, the one that begins the upward bend over the axle is to long, making the system hang to low. My car is on 2” lowering springs and I have to be careful over speed bumps etc. It could stand, in my application at least, to be approximately 1.25” shorter. The exhaust clamps did not fit over the pipe, nor were they even close. I had to go out and buy new bolts for the clamps and they still did not fit right. I needed to use a hammer to push them in to both sides of the clamps. They really were just to small. Seems strange, but trust me. I stayed at a holiday in express.Lastly, and I know this is called “the loudmouth” for a reason. They are not lying on this. Currently running catless and with 1 7/8” headers. This canister that appears to be a muffler or resonator is in fact just a bubbled section of pipe. I may have missed that detail somewhere in the description. (I also spent quite a bit of time on YouTube and oddly no one mentioned it!) But, you are essentially just straight piping your car. The bubbled (muffler looking) section though I’m sure has some design features that make it acoustically sound better than just a standard straight pipe. It creates a very loud drone noise when cruising and it will eventually get old. Perhaps with factory headers and cats it would be just fine.Bonus is that the price is good. My previous flowmaster lasted about 12 years before completely disintegrating the baffles in the muffler. Don’t see that to be a problem with this one. But, everyone says it sounds amazing and it absolutely gets noticed everywhere I go! So, with that said, that’s the entire purpose of all this, right?!?!
Customer
Reviewed in the United States on May 18, 2021
Good
JR
Reviewed in the United States on February 28, 2021
Really like slp and have for a while now, if you purchase this be prepared to buy some new/different exhaust clamps for about half the ones provided, not a big deal but they should take care of this problem. It wouldn’t keep me from buying again, but I expected better from slp. Oh and one more thing it comes with no instructions , you have to download off of their website. Paper instructions would have been nice as I usually like to Bluetooth music from my phone to a speaker. Would have given a 5 star if the clamps weren’t an issue.
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