Best exhaust diameter to go with for custom dual exhaust?

Going to make a straight pipe dual exhaust for my 06 tacoma. The pipe diameter on the truck now is 2 1/4 was wondering what size pipe I should run from my y pipe back. Hoping a larger diameter pipe will make it sound a little bit deeper. Also what size tips (mainly for looks). Thanks

 

My friend has a 06 that we strait piped and dumped right before the axle. We ran 2 1/2" pipe all the way back. It sounds good....until he floors it. Then he looks like a fag

 

Is there much cab drone ?

 

That's not dual exhaust. That's dual cat back.

Make a real dual exhaust. From the manifolds back.

 

What size pipe should I run I was thinking 3 in with 4 in tips ?

 

Borla says:
“There is no easy answer, but as a basic rule, if the car is used for your daily driver, and/or if it has a fairly stock engine, you’ll be happier with a smaller (such as 2 1/4-inch) system. The performance you’d gain with the larger system usually isn’t worth the loss of better sound quality. However, if the engine is very built-up, and if you race it on the weekends, you may want to reap the benefits of the larger and louder 3-inch system.”

Flowmaster says:
“This is the age old question: Power or sound control? Flowmaster doesn’t recommend 3-inch for street use because of the sound legality side of things. Basically, a 400hp engine is quite happy with 2 1/2-inch exhaust. It doesn’t matter if it’s blown or nitrous fed as long as it doesn’t make over 400 hp. If you’re going to be much over this in the way of power (i.e. if your base engine is 350 hp, but the bottle drives it up to 500 hp), you will likely need 3-inch duals. The bottom line on power enhancers is, how much of the time will it be run in this mode? If it’s very limited use, stick with 2 1/2-inch and enjoy the sound.

As for engine size versus exhaust size, the engine is an air pump. If a 350 engine produces 400 hp at 6,000 rpm, it has “X” air and exhaust flow. A 454 engine producing the same 400 hp at a power peak of 5,200 will be flowing the same air and exhaust flow (within a few percent). Therefore, the exhaust flow requirements between the two engines are the same even though the 454 is a larger cube engine.”

DynoMax says:
“A common misconception is that the larger the diameter the better the system. But, bigger isn’t always better. Systems that are too large in diameter can actually hurt performance. As a general rule (when not running a high compression ratio, nitrous, and/or a blower), switching to a performance exhaust system that is 1/4- to 1/2-inch larger than stock will provide you with the best horsepower increase. To determine which pipe diameter will be best for your system, decide what rpm range your engine will operate at most of the time. Smaller diameter pipes will usually produce better low- to mid-rpm torque. Larger diameter pipes usually produce more mid- to high-rpm torque.”

 

Very bad can drone .... i hate riding more than 15 min in his truck

 

Cab not can

 

Yeah I had my exhaust unbolted from the y pipe to see what it sounded like. The cab drone was unreal if you went over 2k your ears were ringing. However I thought that since the exhaust exit was right under the truck the drone would be much worse than if i exited it from the rear but apparently not.

 

A strait pipe will always have bad drone no matter where you dump it, plus it makes people hate you lol. Get a universal muffler and weld it on the stock pipe. My dad has a 2015 and put a super 44 flowmaster and it sounds really good with a nice rumble. If you like a more clean sound (like me) get a magnaflow. They both sound good but magnaflow just had a deep clean tone that sounds awesome!

 

Yeah I got a super 10 on myne now anything below 2k you can barely hear it. I find it has a nice rumble when your on the gas but Idk I just don't think it's loud enough for me haha

 

Super 10 and not loud enough?! Maybe you should just run headers and nothing else lol