I have a 91 hf crx and am putting an apexi exhaust.. What size pipe do you guys reccomend me going with? the muffler shop guy said not too bug cuz it kills the sound.. opinions?

 

you gonna keep the hf motor? I'm gonna go 2 1/4 on my si hatch. I wouldn't probably go bigger than 2 inch on the hf. If you get like a resonator or something in there it will help with the sound

 

yea im gonna keep hf for now.. whats a resonator? where can i get one?

 

exaust shops have them. they're like a catylatic converter shaped thing that make the sound a little quieter without reducing the flow too much like the cat does. My car has one stock. Your car might also

 

agreed. 2" is the max dia for an engine as small as the hf's.

 

If you plan on swapping, size the pipe to the engine you want to put in. Any exhaust you design around the HF will be a waste of time, so you might as well build something you'll want to use in the future.

Plan ahead to save time and money.

 

2.25" is the largest you'll ever need for a non forced induction daily driver application for the 1.6

 

i have run 2 1/4 and 2 1/2 stainless mandrel bent in my stock 89 crx si but i never run a cat or resinator and the 2.5 flows alot better and i ran much better times with it too, thats right from the factory dp to the dynomax super turbo 2.5 in and 2.5 out muffler.

 

well went to muffler shop guy said he put one size larger than stock size... plus he put his type of cat in my car... it sounds pretty soft but i realize its cuz the motor but he said he made it to where it doesnt sound nasty like some of them foreign cars sound now adays.. i dont know what he meant by that?

 

i rather my car sound nasty, lol, and flow better than some restrictive exhaust that makes your car sound stock.