[fhhhstix]

Both you engine and the D8 are 4 stroke engines. The size and number of cylinders will be the biggest difference. Here is an article I found on exhaust tuning and from what I read the length of the exhaust, distance between the chambers, and flow will be the deciding factors on the sound.


Though the main part of the exhaust note is determined by the mufflers, resonators, catalytic converter and pipe diameter, there are a few factors that affect sound at the tip. Tip size actually has very little to do with sound, unless you go to a much larger or smaller diameter. Smaller diameter pipe will restrict the engine, slowing the exhaust stream and decreasing engine noise, and a larger diameter tip will make the engine louder only if the original tip was a restriction.

Down-turned tips, particularly those that dump underneath the car, can deepen the exhaust note by bouncing sound off the ground and using the undercarriage as a resonator. The ground will absorb much of the annoying high-frequency sound from smaller displacement engines.

The only way to significantly affect exhaust register is with a tunable tip, such as those manufactured by SuperTrapp. These tips (originally designed for ATVs and dirt bikes) use conical or disc-shaped inserts to both alter the wavelength characteristics of the escaping exhaust and suppress the flames emitted by very short exhaust systems. These tips allow the user to tune the exhaust note slightly by inserting or removing disc spacers that act as a secondary muffler. This is the most effective option for exhaust note tuning, but considering the fact that they cost 10 times what the average tip does, it may be cheaper to just purchase a new muffler.


Length



On applications where it is possible to do so, like motorcycles and ATVs, lengthening the pipe by as little as 6 inches can drastically affect exhaust note. Doing so gives high frequency waves more opportunity to cancel out, allowing the long, low frequency waves to escape.


I hope this helps.
Travis