stock piping

[magicdragon]

first off ive been having trouble searching for things again so if this topic is out there i do apologize for reposting but here it goes

i need to know the size of the stock piping on our cars
i think they are all the same but if not

my car is a 91 accord sedan lx

i need to know because i am getting parts for my exhaust and well need to have every thing planed before i go buying stuff i dont want to be at the store buying 3 different sizes

now i think its 2.25 but i dont have much confirmation on this

[JoshM]

Stock exhaust piping is right around 1 3/4". IIRC, the exact number is between 1.65" and 1.70".

[marcusv8thunder]

Mine was 1.75" stock

[JoshM]

Mine was 1.75" stock

See, that's what I always thought. But, when I was changing out the exhaust on my EX, I measured just a hair under 1.71". When I measured the exhaust on my DX, it was even smaller.

Maybe neither of my CBs had OEM piping.

[tm123]

not too sure exact size
i have read on here though dx/lx and ex are different size not 100% on that one

[zacatecas]

1.75 here. would it make a difference if its a 2.25 piping with stock muffler?

[marcusv8thunder]

See, that's what I always thought. But, when I was changing out the exhaust on my EX, I measured just a hair under 1.71". When I measured the exhaust on my DX, it was even smaller.

Maybe neither of my CBs had OEM piping.

Im sure theres a difference between, Honda stock piping and a standard replacement piping, im sure with the replacement exhausts there is less effort in exacting the diameter

Also in relation to the last thing, a slightly tapered exhaust diameter keeps up the velocity improving torque. like for example, 2.5 tapered to 2.25 but depends on your setup

[zacatecas]

It wouldn't flow very well.

Imagine pouring water into a funnel. The side you're pouring water into is 2.25", and the exit end is 1.75". As you pour, the water will get backed up and begin to overflow out of the top.

Same goes for your exhaust.

[Paradien]

is the prelude larger than the accord?

[magicdragon]

i need to know because im need to buy a pipe that will fit over the stock so i can eaither clamp it down or weld it

[theSOB]

i need to know because im need to buy a pipe that will fit over the stock so i can eaither clamp it down or weld it

got a ruler??