Parts Inventory > High Performance Mufflers & Exhaust Components > Pittsburgh Power > W900 Style Mufflers 

PITTSBURGH POWER
W900 Style Mufflers

W900 STYLE 5" IN 5" OUT MUFFLER

  • A straight flow under cab muffler for Kenworth trucks, International trucks and some Cat Acert applications
  • Up to One MPG fuel savings
  • Up to 50 additional horsepower gained

If you own one of the trucks with a reverse-flow muffler under the bunk, you are killing your engine with exhaust backpressure and it is costing you a lot of money. In fact, on a 550 Cat Engine, this muffler has 60 inches of backpressure and will rob the engine of as much as 50 horsepower and a fuel mileage loss of up to one mpg. That is 1500 gallons of fuel for every 100,000 miles driven or $3,650.00 extra in fuel. If you drive 150,000 miles per year, you lose $5,425.00 in fuel consumption. On the other hand, that reverse-flow muffler is quiet. Quiet like the guy siphoning your tank.

The muffler and pipe combination we have designed is not as quiet as I would like, however, space is a problem. You are dealing with only one muffler unless the engine is a Cat Acert and then there are two mufflers under the bunk. Another feature to this muffler we have designed is the raspy sound it makes when the Jake Brake is on. So, if you are a team driver and your partner is sleeping in the bunk while you are driving it will rattle their cage. No team driver, no problem. You will love the sound.

One 64-year-old owner-operator called after several trips with this new muffler on his 550 Cat in a W900-L KW and said it was too noisy for him. I said; no problem, just send it back. and his reply was Hell no, I will not send it back! I gained 1/2mpg! Just try to make it quieter.

Another owner-operator that runs between Las Vegas and L.A. said he gained a full gear on the hills. It takes 50 horsepower to gain a full gear. And again our muffler system does not collect soot, so your oil analysis will be cleaner, which means the engine will live longer. It is impossible to obtain fuel mileage with a truck that has restrictive fuel, air, or exhaust flow. The new W-900L muffler system is easy to install and you can do it in your driveway. Just remove the stainless band clamps that hold the existing muffler to the pipes, remove the 2 brackets that hold the muffler to the chassis, and slide off the old muffler. Notice the weight of the old unit. It holds soot.

Now all you have to do is clean the dirt off the Y pipe and also the pipe coming from the engine. Apply a little grease to the ends of the pipe so the new muffler and U pipe will slide on easily; install the two stainless band clamps and one 6 inch stainless band clamp to hold the U pipe to the muffler. Finally, install the 2 chassis brackets to hold the unit to the frame. You are finished and now have a free-flowing straight through muffler. The truck will run free, the exhaust temperature will be cooler; and the fuel mileage will improve. The muffler is 64" long and 16" wide and has a 5" inlet and a 5" outlet

 

W900 STYLE 5" IN 5" OUT SHORTY MUFFLER

  • A straight flow under cab muffler for Kenworth trucks, International trucks and some Cat Acert applications
  • Up to One MPG fuel savings
  • Up to 50 additional horsepower gained

If you own one of the trucks with a reverse-flow muffler under the bunk, you are killing your engine with exhaust backpressure and it is costing you a lot of money. In fact, on a 550 Cat Engine, this muffler has 60 inches of backpressure and will rob the engine of as much as 50 horsepower and a fuel mileage loss of up to one mpg. That is 1500 gallons of fuel for every 100,000 miles driven or $3,650.00 extra in fuel. If you drive 150,000 miles per year, you lose $5,425.00 in fuel consumption. On the other hand, that reverse-flow muffler is quiet. Quiet like the guy siphoning your tank.

The muffler and pipe combination we have designed is not as quiet as I would like, however, space is a problem. You are dealing with only one muffler unless the engine is a Cat Acert and then there are two mufflers under the bunk. Another feature to this muffler we have designed is the raspy sound it makes when the Jake Brake is on. So, if you are a team driver and your partner is sleeping in the bunk while you are driving it will rattle their cage. No team driver, no problem. You will love the sound.

One 64-year-old owner-operator called after several trips with this new muffler on his 550 Cat in a W900-L KW and said it was too noisy for him. I said; no problem, just send it back. and his reply was Hell no, I will not send it back! I gained 1/2mpg! Just try to make it quieter.

Another owner-operator that runs between Las Vegas and L.A. said he gained a full gear on the hills. It takes 50 horsepower to gain a full gear. And again our muffler system does not collect soot, so your oil analysis will be cleaner, which means the engine will live longer. It is impossible to obtain fuel mileage with a truck that has restrictive fuel, air, or exhaust flow. The new W-900L muffler system is easy to install and you can do it in your driveway. Just remove the stainless band clamps that hold the existing muffler to the pipes, remove the 2 brackets that hold the muffler to the chassis, and slide off the old muffler. Notice the weight of the old unit. It holds soot.

Now all you have to do is clean the dirt off the Y pipe and also the pipe coming from the engine. Apply a little grease to the ends of the pipe so the new muffler and U pipe will slide on easily; install the two stainless band clamps and one 6 inch stainless band clamp to hold the U pipe to the muffler. Finally, install the 2 chassis brackets to hold the unit to the frame. You are finished and now have a free-flowing straight through muffler. The truck will run free, the exhaust temperature will be cooler; and the fuel mileage will improve.

The muffler is 48" long and 15" wide and has a 5" inlet and a 5" outlet.

W900 STYLE 5" IN 6" OUT MUFFLER

  • A straight flow under cab muffler for Kenworth trucks, International trucks and some Cat Acert applications
  • Up to One MPG fuel savings
  • Up to 50 additional horsepower gained

If you own one of the trucks with a reverse-flow muffler under the bunk, you are killing your engine with exhaust backpressure and it is costing you a lot of money. In act, on a 550 Cat Engine, this muffler has 60 inches of backpressure and will rob the engine of as much as 50 horsepower and a fuel mileage loss of up to one mpg. That is 1500 gallons of fuel for every 100,000 miles driven or $3,650.00 extra in fuel. If you drive 150,000 miles per year, you lose $5,425.00 in fuel consumption. On the other hand, that reverse-flow muffler is quiet. Quiet like the guy siphoning your tank.

The muffler and pipe combination we have designed is not as quiet as I would like, however, space is a problem. You are dealing with only one muffler unless the engine is a Cat Acert and then there are two mufflers under the bunk. Another feature to this muffler we have designed is the raspy sound it makes when the Jake Brake is on. So, if you are a team driver and your partner is sleeping in the bunk while you are driving it will rattle their cage. No team driver, no problem. You will love the sound.

One 64-year-old owner-operator called after several trips with this new muffler on his 550 Cat in a W900-L KW and said it was too noisy for him. I said; no problem, just send it back. and his reply was Hell no, I will not send it back! I gained 1/2mpg! Just try to make it quieter.

Another owner-operator that runs between Las Vegas and L.A. said he gained a full gear on the hills. It takes 50 horsepower to gain a full gear. And again our muffler system does not collect soot, so your oil analysis will be cleaner, which means the engine will live longer. It is impossible to obtain fuel mileage with a truck that has restrictive fuel, air, or exhaust flow. The new W-900L muffler system is easy to install and you can do it in your driveway. Just remove the stainless band clamps that hold the existing muffler to the pipes, remove the 2 brackets that hold the muffler to the chassis, and slide off the old muffler. Notice the weight of the old unit. It holds soot.

Now all you have to do is clean the dirt off the Y pipe and also the pipe coming from the engine. Apply a little grease to the ends of the pipe so the new muffler and U pipe will slide on easily; install the two stainless band clamps and one 6 inch stainless band clamp to hold the U pipe to the muffler. Finally, install the 2 chassis brackets to hold the unit to the frame. You are finished and now have a free-flowing straight through muffler. The truck will run free, the exhaust temperature will be cooler; and the fuel mileage will improve.

The muffler is 64" long and 16" wide and has a 5" inlet and a 6" outlet.