Pass emissions?? (missouri) w/headers
Thread Starter
Drifting
Joined: Mar 2000
Posts: 1,477
Likes: 105
From: st. louis, MO. USA
Pass emissions?? (missouri) w/headers
OK guys, I live in missouri and have to worry about emissions. I have a 99 hardtop with a small cam (221 .558 114) and a mallett exhaust. For those not familiar, the mallett exhaust is straight back with small carbon fiber cannister-like mufflers (not your typical exhaust). Now I want to add some Bassani long tube headers with hi-flow cats. Do you think I will have trouble with emissions?? should I get O2 sims? I think the testing stations just hook up to your computer and not sniff the exhaust now. - Also can they tell if I have O2 simulators on it?? ARe those illegal? Thanks guys.
Rob
Rob
Pro
Joined: May 2004
Posts: 744
Likes: 0
From: St. Peters MO.
This is the show me state so unless your car has a code on the PCM they won't test it on the smog dyno. The 02 sensors, I'll find out and post later but these shouldn't be a problem because they fool the PCM with a look alike signal so no code will be showing. Missouri wanted to get rid of this obsurred testing but there is too much money being made by the politicians. Let's not go there on thios great Friday morning. Gary
Le Mans Master
Joined: Jul 2002
Posts: 7,076
Likes: 26
From: Nevada and Florida
Nice thing about the Bassani system is that it uses stock 02 locations (do not use sims). You also will not get cat low efficiency codes. You want to make sure your EPA readiness tests are completed and you clear any engine related codes. The idea is pass OBDII. If you do not, they will probably be doing a "visual" and you will fail since you do not have the stock cats.
Thread Starter
Drifting
Joined: Mar 2000
Posts: 1,477
Likes: 105
From: st. louis, MO. USA
So you would suggest not using the O2 sims?? Somebody told me that they had Bassani long tubes and I should use O2 sims. Basically , I just want to make sure I pass emissions thats all. I also could run straight pipes (no cats) but I thought that would really be pushing it. Did you get any tuning done after you added your Bassani headers?????
Rob
Rob
Le Mans Master
Joined: Jul 2002
Posts: 7,076
Likes: 26
From: Nevada and Florida
Originally Posted by 1999PewterCorvette
So you would suggest not using the O2 sims?? Somebody told me that they had Bassani long tubes and I should use O2 sims. Basically , I just want to make sure I pass emissions thats all. I also could run straight pipes (no cats) but I thought that would really be pushing it. Did you get any tuning done after you added your Bassani headers?????
Rob
Rob
Thread Starter
Drifting
Joined: Mar 2000
Posts: 1,477
Likes: 105
From: st. louis, MO. USA
JoeyG,
Wow , heads , cam, no cats and long tubes in Missouri. Way to go. My set up doesnt look so bad compared to that. If you passed, then I would think I could. How 'bout you 99silvercoupe, have you had emissions testing since vettemaster put all the mods on??
Rob
Wow , heads , cam, no cats and long tubes in Missouri. Way to go. My set up doesnt look so bad compared to that. If you passed, then I would think I could. How 'bout you 99silvercoupe, have you had emissions testing since vettemaster put all the mods on??
Rob
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Safety Car
Joined: Aug 2000
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From: St. Joseph MO
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Well, the thing about that is I'm on the west side of the state. Pretty laid back here. Being on the east side you guys have a little more restriction. There were a couple of guys I though that were going catless over there. Have you been tested yet?
Drifting
Joined: Apr 2001
Posts: 1,337
Likes: 52
From: Wentzville, MO.
Originally Posted by 1999PewterCorvette
JoeyG,
Wow , heads , cam, no cats and long tubes in Missouri. Way to go. My set up doesnt look so bad compared to that. If you passed, then I would think I could. How 'bout you 99silvercoupe, have you had emissions testing since vettemaster put all the mods on??
Rob
Wow , heads , cam, no cats and long tubes in Missouri. Way to go. My set up doesnt look so bad compared to that. If you passed, then I would think I could. How 'bout you 99silvercoupe, have you had emissions testing since vettemaster put all the mods on??
Rob
Safety Car
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From: St. Joseph MO
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Originally Posted by 1999PewterCorvette
I dont have the headers on yet. Theyre just sitting in the garage begging to be put on.
Pro
Joined: Sep 1999
Posts: 666
Likes: 0
From: St. Louis MO
Originally Posted by 1999PewterCorvette
OK guys, I live in missouri and have to worry about emissions. I have a 99 hardtop with a small cam (221 .558 114) and a mallett exhaust. For those not familiar, the mallett exhaust is straight back with small carbon fiber cannister-like mufflers (not your typical exhaust). Now I want to add some Bassani long tube headers with hi-flow cats. Do you think I will have trouble with emissions?? should I get O2 sims? I think the testing stations just hook up to your computer and not sniff the exhaust now. - Also can they tell if I have O2 simulators on it?? ARe those illegal? Thanks guys.
Rob
Rob
