Fuel mileage - something everyone wants to improve. Check out the Zoomer muffler from Jobe Performance. The new design will help lower back pressure and exhaust gas temperatures while improving fuel economy. Available in 4- or 5-inch inlets, this diesel muffler is constructed of T-304 stainless steel and is C.A.R.B. certified. Looking for the next big thing in diesel exhaust? Call Jobe Performance at 817-773-5150 or stop by their website at www.jobeperformance.com.