Frequently Asked Questions

How can I contact you?

You can email us by clicking here or call us at 417-929-1824. We are happy to help you every step of the way- from choosing a muffler to giving you personal installation advice.

How much is shipping?

We offer FREE shipping to the continental United States on all products.

How long will it take to get my muffler?

Shipments usually arrive within 7 business of the order date, and often arrive in less than 3 days. If you are interested in expedited shipping, you can Contact Us.

Do you ship outside of the continental United States?

Yes, but you must Contact Us directly for shipping rates. 

What is your return policy?

You may return new, unused items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.). We will issue your refund after we receive and inspect the returned item.

If you need to return an item, please Contact Us with your order number and details about the product you would like to return. We will respond quickly with instructions for how to return items from your order. 

What models do you offer?

We currently offer:

The "Signature Series" which comes in 2 Versions. Both versions have the same sound:

  • Signature Series Elite: Stainless case, seamless ends, and a limited lifetime warranty.
  • Signature Series Premium: Aluminized steel case, and a limited 6 year warranty.

The "Hot Tamale", which has an aluminized case, a louder (but still refined) sound, and a 5 year limited warranty.

Will Paradox Performance Mufflers Work On My Vehicle?

Our universal mufflers fit virtually any vehicle if installed by a professional muffler shop or fabricator.

We designed our mufflers to perform excellently on:

  • Most stock/unmodified vehicles of all engine types.
  • Most modified V8s up to 600 horsepower.

Without extra sound control, our current models may not be enough for:

  • Engines producing 600+ horsepower.
  • Supercharged vehicles.
  • Heavily tuned/ultra modified 4 and 6 cylinders.

To learn more about if Paradox is right for you, click here.

Why don't you offer more direct-fit kits?

We have chosen to focus our efforts on versatile, high quality universal mufflers rather than kits for specific vehicles. We are a small family business, and we have decided to prioritize excellent customer service and tech support. If you need help with installation on your vehicle, email us by clicking here, or call 417-929-1824

How loud/quiet are Paradox Performance Mufflers?

Sound is in the ear of the beholder, and varies from vehicle to vehicle. In general, the sound level is comparable to other performance mufflers commonly found in muffler shops. The difference is the great sound quality, the reduction of "drone", and the ability to bring sound out of quieter vehicles,

Can the necks be clamped/welded?

We recommend welding the inlets/outlets. However, they may also be clamped with a "band" (AKA "lap joint") exhaust clamp and a liberal amount of muffler cement. NOTE: Due to the extra thick metal used in our mufflers, we do not recommend traditional "saddle" (AKA "U Bolt") clamps.

Are Paradox Performance Mufflers Directional?

Yes. Each muffler has an inlet marking.

Do you offer a warranty?

Yes. For the Signature Series Elite, we offer a Limited Lifetime Warranty. For the Signature Series Premium, we offer a limited 6 year warranty. For the Signature Series Basic, we offer a limited 3 year warranty. For the Hot Tamale we offer a Limited 5 Year Warranty. For more information, visit

Where are Paradox Performance Mufflers manufactured?

Our Signature Series Basic and Hot Tamale Mufflers are manufactured in Missouri, USA. Our Signature Series Elite and Premium mufflers are manufactured in Ohio, USA.


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