Rules of thumb? Pipe Diameter?

On the previous article, the pipe diameter is one of the main key to select best suit exhaust system for your vehicle, But, how do we choose the best dimensions that suit to our need??

The quick and easy way to choose what diameter pipe you will need from the headers to the mufflers is to go back to the old rule of thumb, that for every 100 horsepower = 1” of total pipe diameter is needed across the system. For example, a 500 horsepower engine needs a 2.5″ dual exhaust (2.5″ x 2 = 5″). This, of course, is a rough estimate, and there are several complex mathematical formulas to help you discover the “perfect” size of pipe to use.

Our team had done several tests, researches for this calculation, the result is shown astable below:

Engine Displacement (ci)

Horsepower Single Pipe Diameter (inches) Dual-Pipe Diameter (inches)

150 to 200

100 2.00 2.00

150 to 200

150 2.25

2.00

150 to 200

200 2.50

2.00

200 to 250

150 2.25 2.00
200 to 250 200 2.50

2.00

200 to 250

250 2.50 2.25

250 to 300

200 2.50 2.00
250 to 300 250 2.50

2.25

250 to 300 300 3.00

2.50

300 to 350

250 3.00 2.25

300 to 350

300 3.00 2.50

300 to 350

350 3.50

2.50

350 to 400 300 3.30

2.50

350 to 400 350 3.50

2.50

350 to 400

400 3.50 2.50
400 to 450 400 3.50

2.50

400 to 450

450 4.00 3.00
400 to 450 500 4.00

3.00

450 to 500

500 4.50

3.50

450 to 500 600 4.50

3.50

450 to 500 700+ 4.50

3.50

 

What About Muffler? For muffler diameter?

Your choice of mufflers is as much about performance as sound. Do you want a low deep growl sound, or do you want to wake up thebe the eye-catching beast on the road? There are multiple options available to you. Click Here to take a listen to some of Max Racing Exhaust’s offerings. You can click on the description to play the sound of each muffler, and check the attribute whether the muffler specification suit to your vehicle.