"Founded in 1986. We are the Inventor of the XPIPE and so much more! Our Exhaust Systems have been in every NASCAR from 1996- 2013, 11 years in the IROC series. We have 9 Daytona 500 Wins.With over 40+ championships under our belt. We have brought our Exhaust systems in countless Resto Mods, Muscle Cars, Classic, Dirt track cars and much more to you! 


My Account
Shopping Cart 0 item(s)
View Cart
Follow us!

Dr. Gas Facebook
Dr. Gas Twitter


Hello everyone, we have some great news! Dr.Gas! will not be closing and I have a new buyer and we are starting to make our product line available again. William will be continuing my exhaust systems as I have done for the past 33 years.  We are excited and we hope you will soon see our updated website which will still be drgas.com but with a modern touch. 

Our sought after BoomTubes and other items are in production soon. We look forward to speaking and hearing from all of our loyal customers and look forward in getting to know each one of you. I will be contacting each one of who has placed orders over the phone to get your order out soon, thank you all again.





Home > Dr. Gas exhaust systems

Dr. Gas RevPro 4-Trap Muffler

Part Number SPM4
Dr. Gas RevPro 4-Trap Muffler
Email a friend Email a friend
Price
Your Price:  
$149.95
Availability:
In Stock
Choose Options
Case Thickness
Thin Case (3.25")
Thick Case (4.25") [+$15.00]
Inlet/Outlet Size
2.5" Inlet / 2.5" Outlet
3" Inlet / 3" Outlet
3" Inlet / 2.5" Outlet
3.5" Inlet / 3.5" Outlet (Thick Case Only)
3.5" Inlet / 3" Outlet (Thick Case Only)
4" Inlet / 4" Outlet (Thick Case Only) [+$25.00]
Paint Color
Black
Copper [+$3.95]
Quantity
Add to Wish List
Description
The muffler you've been waiting for! A 100%-flow performance muffler that won't make your ears bleed. The Dr. Gas RevPro Muffler comes in small case (4-cylinder/6-cylinder) and large case (6-cylinder/8-cylinder).

Our Dr. Gas RevPro mufflers use our patented spin-trap design to give you an extremely smooth, deep-toned exhaust note with no rasp and excellent performance.  Our Dr. Gas RevPro mufflers flow equal to a piece of straight pipe!  It's true.

Plus, our mufflers are tough!  They're constructed from thick-gauge aluminized mild steel, then painted with high-temperature muffler paint.  Would you dare drive your truck over one of our competitor's mufflers?

Thin Case Dimensions:    14 1/2" x 6 1/2" x 3 1/4".
Thick Case Dimensions:  14 1/2" x 6 1/2" x 4 1/4".

Note: At this time, these mufflers are only available in offset-in / offset-out configuration.

*PATENTED*

Related Items
Boom Tube Muffler
Boom Tube Muffler
Your Price: $324.95
Dr. Gas RevPro 3-Trap Muffler
Dr. Gas RevPro 3-Trap Muffler
Your Price: $134.95
Dr. Gas RevPro 5-Trap Muffler
Dr. Gas RevPro 5-Trap Muffler
Your Price: $164.95
Boom Tube Muffler Tip
Boom Tube Muffler Tip
Your Price: $399.95