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Muffler Delete Pipe by MBRP®. Muffler Delete Pipe Inlet Diameter: 3". Muffler Delete Pipe Outlet Diameter: 3". Let it all hang out and bypass the muffler entirely on your truck. This 4” T409 stainless steel pipe fits directly into place in your exhaust system and replaces your muffler. Yes, it’s loud.
Sometimes things just don’t line up the way you want them to, and it becomes necessary to improvise. Use these adapters to change the diameter of an exhaust pipe to a larger diameter. They’re swaged to slip-fit the mating pipe exactly, needing only a simple muffler clamp to achieve a perfect seal and mechanical integrity. No welding required.
It’s only a matter of a few minutes to give your exhaust system the ultimate reduction in back pressure. Just unclamp the muffler and hang this polished stainless delete pipe in its place. It uses all the factory hangers, so it looks like it belongs there. Great for car shows, drag racing or dyno testing, but will probably get you a ticket on the street. The T304 stainless steel pipe has been polished to a mirror shine, and it will stay that way.
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We assure you that we ship all the parcels received on the same day till 12 pm standard central time.
We send shipment tracking numbers via email. It is sent to the email address you provided in your order. If you would like to change the email address you provided, Feel free to contact our support team at (support@part-synergy.com).
We are here to serve you. If there is any item that is damaged or needs to be exchanged or returned for any reason, please contact our support team(support@part-synergy.com). Please read our return and exchange policy to learn more about this.
All orders are free of shipment costs. The cost mentioned on the website is for getting it to your doorstep.
Please do get in touch with our customer support as they may be able to provide you with a return label which will cost you much less. But if you still need to send an item back, here is our shipping address.

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| If Picked Up On | Will be delivered by | ||||||
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| Tuesday | Wed | Thu | Fri | Mon | Tue@ | Wed@ | Thu= |
| Wednesday | Thu | Fri | Sat | Tue | Wed@ | Thu@ | Fri= |
| Thursday | Fri | Sat | Sun^ | Wed | Thu@ | Fri@ | Mon= |
| Friday | Sat | Sun^ | Mon | Thu | Fri@ | Mon@ | Tue= |
| Saturday | Tue* | Wed | Thu | Fri | Mon@ | Tue@ | Wed= |
| Sunday | Tue** | Wed | Thu | Fri | Mon@ | Tue@ | Wed= |
*Sunday^ delivery if the shipper is enrolled in weekend spotted trailer pickups
**Monday delivery if the shipper is enrolled in weekend spotted trailer pickups
^Monday if not a Sunday eligible ZIP code
@ The following week
= Earliest possible delivery the following week
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