ok...i just found out that the headers i want need a custom y pipe. i am getting the hooker 1 3/4 long tubes. i also have the random technology hi flow cat converter(3"), and i will have the hooker aerochamber cat back. now...after evaluating my situation i find that the headers are NOT emission legal...so that brings us to my next point...should i even use this hi flow cat in my setup or should i just sell it new. either way when emmissions testing comes around in two years...ill have to put the exhaust manifolds back on to pass. thanks a million guys.

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Rick
90 Camaro RS 305 TBI
400 small block, Hooker 1 3/4 super comp long tubes, Random Tech Cat, Hooker aero chamber cat back on the way!!
TH700-R4 with Trans-Go shift kit
MacEwen Motorsports White Gauge Overlays
K&N Filter Charger (wooohooo)
GTS Headlight and Taillight covers
5% Limo Tint all around
Classic White Chevy Bowtie sticker on rear window

Man if my camaro were a rice-rocket all those mods would give me what...easily 50-60 hp!!!

 

help

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Rick
90 Camaro RS 305 TBI
400 small block, Hooker 1 3/4 super comp long tubes, Random Tech Cat, Hooker aero chamber cat back on the way!!
TH700-R4 with Trans-Go shift kit
MacEwen Motorsports White Gauge Overlays
K&N Filter Charger (wooohooo)
GTS Headlight and Taillight covers
5% Limo Tint all around
Classic White Chevy Bowtie sticker on rear window

Man if my camaro were a rice-rocket all those mods would give me what...easily 50-60 hp!!!

 

please

 

Muflex makes a y-pipe made specifically for the Hooker full length headers. The question of using a catalytic converter or not depends on if you are using this car for mainly street of strip. I have no cat right now but I will be putting one on in the near future. I believe that the low backpressure is actually hurting me right now.

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1991 Z28 - 350 TPI, T56, Centerforce Dual Friction clutch, ported plenum & runners, AFPR, Holley Annihilator ignition box and wires, Hooker shorty headers w/o AIR, no cats, Flowmaster muffler, homeade ram-air, SSM subframe connectors, Steve Spohn adjustable torque arm and T56 crossmember

 

You can't go wrong in putting in the hi-flo cat. It's not the end of the world if you can't use the headers! If you want something better, try looking around in the junkyards for the stainless tubular exhaust manifolds. Look in the engine bone pile; they are often still attached. They are good for the street and will satisfy the smog-legal appearance test.

 

but you see...i want the headers almost indefinitely. i was just thinking that...the headers wont pass emmissions....so why bother wiht the cat. its like 200 bucks...i could sel it. i dont mind swapping the manifolds and old oem cat back on at emmisions time. i just want reassurance that i should just sell hte cat and put a tube instead.

------------------
Rick
90 Camaro RS 305 TBI
400 small block, Hooker 1 3/4 super comp long tubes, Random Tech Cat, Hooker aero chamber cat back on the way!!
TH700-R4 with Trans-Go shift kit
MacEwen Motorsports White Gauge Overlays
K&N Filter Charger (wooohooo)
GTS Headlight and Taillight covers
5% Limo Tint all around
Classic White Chevy Bowtie sticker on rear window
www.geocities.com/esvalenz

Man if my camaro were a rice-rocket all those mods would give me what...easily 50-60 hp!!!

 

i have an idea..put the cat on! u wonder why all the people bitch and complain its hot here in LA? Cuz dumbasses who dont run with their smog equipment, or dont smog their cars, or who just dont give a s h i t...im 16 and already recognize this!!

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88 Firebird 2.8
MODS (either coming or on):
Flowmaster 80 series, Random Technologies Cat, 3" intermediate pipe, Accel 8.8 wires, MSD Coil, MSD Ignition Module,MSD 6A
Currently Working On:
t5 swap
Next to buy:
Slp dual cold air intake!

 

ttt

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Rick
90 Camaro RS 305 TBI
400 small block, Hooker 1 3/4 super comp long tubes, Random Tech Cat, Hooker aero chamber cat back on the way!!
TH700-R4 with Trans-Go shift kit
MacEwen Motorsports White Gauge Overlays
K&N Filter Charger (wooohooo)
GTS Headlight and Taillight covers
5% Limo Tint all around
Classic White Chevy Bowtie sticker on rear window
www.geocities.com/esvalenz

Man if my camaro were a rice-rocket all those mods would give me what...easily 50-60 hp!!!

 

Not to flame anyone who defends emmision laws around here but Smog and pollution have been around this country (especially L.A) since before cars and factories. I recently found out that the L.A area was called the "land of fog" or "land of smoke" or something like that by indians back before cars were even dreamed of. So whether your running a cat or not I doubt will effect the environment.....YES I know this didnt answer your question, just some info I recently aquired

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Fire fighting, Scuba Diving, and Fast cars.....Does life get any more exciting

'86 TPi T/A L98
Mods:
Borla 3" Adjustable Cat Back
Edelbrock Headers

Orderin Ram Air Hood, 4th Gen. Spoiler, and 4th Gen Seats and center console next week.

AOL Screen Name, Madbiker1


[This message has been edited by 86FyrBrd (edited August 03, 2001).]

 

I would personally try to find environmentally friendly mods and I would run a high flow cat if I had one... I may look like a hypocrite from my sig, but I do what I can afford to my car and that is why I don't run a cat right now... if you have the patience to swap out the headers once a year then hey why not run the cat too...extra 20 min of work...

BTW regardless of whether the indians called it the land of smoke or whatever, the level of toxic gasses has risen since the industrial revolution and whether it's a natural occurance or not, it isn't worth totally ignoring. The indians didn't know that fog was different than smoke, so from what I gather, they were referring to fog 300 years ago which has since been replaced by smog... The EPA isn't a government conspiracy, and smoking does cause cancer and JFK wasn't assasinated by the FBI etc. etc.

Oh well I don't give a ****, I hate big cities anyhow...

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1984 Firebird - Daily driver, 305 LG4, T5 - Hurst short shifter, Edelbrock 600 CFM Performer Carb - Edelbrock Pro-Flow air filter, gutted cat, IROC 16x8 Wheels, Goodyear P215/60/R16, AIWA bargain basement (from Sears of course) CD player
Player accessories: fuzzy dice, eight-ball Shift ****
Check out my ride here

Quote from my sister: "It sounds like a boat"

[This message has been edited by ChillPhatCat (edited August 10, 2001).]

 

carcraft magazine ran a test on cats with a 305 tpi car it made 5 ftlbs more with the cats in place and only lost 1hp.if you have the cat you may as well run it and save your self the trouble of having to swap one in every 2 years. as for the headers i was thinking of buy these and welding air tubes to them so i can run my smog pump and be smog legal. anyone done this?

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91 Z28 slp headers adj reg accell cap rotor coil comp cam roller
random tech cats flowmaster catback
new motor in

 

there are hooker headers that come with the smog tubes and such like our exhaust manifolds,right from the factory.

What you can do is just remove the cat and when it's time for inspection just install it back again,,just an idea.

Of course I do my share for cleaner air.