Well I'm trying to decide on the Fujitsubo RM01A or the Greddy Evo2 and it seems they both have their own restrictions.

So which is worse?
The RM01A's 2 resonators that neck down?
or the Greddy evo2 with its one resonator (that has a neck) and its crazy "S" bend that connects the muffler to the mid pipe?

 

just make your own at a local muffler shop and use a 3 magnaflow muffler. should not cost more than $300 to build a true 3" cat back with no neck downs or restrictions.

most aftermarket exhaust have restrictions and do not flow well. i persionaly use to haver the espelir and it tapers to 2.5 or less at the flange where it meets the car and the resonator is less than 2 inches on the inside. i know most of hks exhaust are also this way.

buschur is a good exhaust that true 3" all the way but its over priced and too loud due too the tiny muffler.

 

You have an Espelir? Wern't you the guy with the like 3 foot magnaflow muffler? and another 2 foot resonator with mad sharp bends and ****ty welds in your pipe?

 

turboxs rfl is a true 3in, sounds great and is well priced

 

I'm not asking on what exhaust to get, lets stick to my question on the first post.

 

I have a question, will a 3" hfc work on a 2.75 cbe and dp?

 

hey, get the **** out of my thread

and to answer your question, yes it will

 

well if not then I was going to say don't get my exhaust

 

i dont know the 2 exh. systems your talking about but:

i recomend getting the exhaust that has the neck-down furthest away from the turbo.

the more time the exhaust gases have a chance to cool down, the more you will flow through any type of restriction / smaller diameter.