some one tell me which high flow cats to get with my custom HKS exhaust....

 

Im pretty sure the connections are designed to fit over a range of sizes...so how big is your exhaust piping on the hot side?

 

60mm=2.36"
do a search. educate yourself. quit having others make decisions for you.

 

gezz Z boy u have been riping me apart the last week....my question was which brand was best

 

helix or crawford?

 

LOL. You've been a member of the forum for about 18 months, and are as I tired as I am with the “what is the best...” questions. I try my best to ignore them.

 

Crawford, hands down

 

Helix, hands down. Helix has better material in their cats. From what I know, crawford uses carsound HFCs, while Helix uses a metal substrate cat. Helix will out live the crawfords.

 

which will flow better...Crawford or Helix ?

 

NISMO eggplant high flow cat. Flows the best and cleans the best, even better than the stock cat.

 

got a link Mike

 

If i got helix high flow cats... wat would i have to tell my shop to do inorder for it to be installed correctly, such has welding? Annd does it come with 02 sensor?

 

LOL at NISMO cats - they "clean the best and flow the best" - they better clean my HOUSE for the price they are!

All the high flow cats on the market will flow withint 20-30 or so cfm of one another. Pick what is readily available, and what you can afford (and what has a reputation for not cracking, fitting properly, etc)

they do not include 02 sensors...you reuse your old ones

you need to order new gaskets from the dealer - that is all

 

Ive had both...RT and Crawford cats . The RT's flow much better . Louder and got rasp...but flow better

 

i apologize. i've been on percocet due to a painful knee surgery recently, and i've been *****y lately. sorry.

 

I think Z Boy has been bucking for a Moderator job lately...j/k

 

hehe. naw. i just know i can be intolerant at times, and i don't wanna get banned.

 

Crawfords

 

HELIX...

If and only if you can figure out a way to support them. ie welding or brackets. I used brackets mounted to the OEM flex brace. They use a 200 cell metal substrate. I've had mine on since May and really like them, along with my other n/a mods.

My other choice would be UR high flow cats or Crawford...

Zquicksilver

 

Over time the R/Ts break Up inside, and don't flow at all. Crawfords here.

Lou