catalytic converter removalel

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13 years 9 months ago #12116 by OBehave
The replacement of the exhaust manifolds with 85/86 shorty headers and no cat will yield a noticable improvement in exhaust note and performance, But it would be irresponsible of us to not inform you that it may be illegal in your state to do so and you should research it before just doing it.I am not trying to be a buzzkill just a friend.

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13 years 9 months ago #12118 by pcar928fan
Ed, you are a buzzkill! LOL! That said, a friend has an '88 S4 and this is the last year of the dual stage idle test for our cars. He fitted an X-pipe NO CATS and an RMB and he still passed his emissions test with flying colors! Go figure!

James
78 Silver / Black-white #295
84 Ruby Red / Black AO84
88 Dark Blue / Linen-Black
92 Polar Silver / Dark Blue 92EURO
93 Arrow Blue / Black

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13 years 9 months ago #12121 by OBehave

pcar928fan;12465 wrote: Ed, you are a buzzkill! LOL! That said, a friend has an '88 S4 and this is the last year of the dual stage idle test for our cars. He fitted an X-pipe NO CATS and an RMB and he still passed his emissions test with flying colors! Go figure!


Note: "your results may vary!"

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13 years 9 months ago #12123 by pcar928fan
LOL! SO TRUE!!! Our silly little EPA test is pretty sad actually! We do nothing like D/FW or CA or many other places. Just glad we can still get away with a little hooliganism here in Austin, TX!

Thanks Ed for all you do for the 928OC my friend! Getting back to you on your PM soon. SUPER BUSY this week so it might be next week before I can get you my tool write up. But you can mention it for The Shark Vibes that there is a Tire Pressure Monitor Sensor removal tool available on the loaner program... We will fill in the blanks later if anyone ever wants to borrow it!

James
78 Silver / Black-white #295
84 Ruby Red / Black AO84
88 Dark Blue / Linen-Black
92 Polar Silver / Dark Blue 92EURO
93 Arrow Blue / Black

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13 years 9 months ago #12144 by mm928
Replied by mm928 on topic catalytic converter removalel
If you do end up needing a cat, the SS hi-flow from Roger is a good one. 3 inch ! Passing a lot of gas... HA.

1983 928S - 16v 4.7L L-Jetronic
Slate Blue Metallic w/ Blue Leather
85/86 exhaust manifolds
Y-Pipe
SS Hi-perf Cat
S4 springs
Bilstein shocks
Air pump delete
VIN: WP0JB0926DS861180
- - Isn't Life great? - -

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13 years 9 months ago #12301 by Normy1

pcar928fan;12465 wrote: Ed, you are a buzzkill! LOL! That said, a friend has an '88 S4 and this is the last year of the dual stage idle test for our cars. He fitted an X-pipe NO CATS and an RMB and he still passed his emissions test with flying colors! Go figure!


That is correct.


Properly calibrated LH-jetronic [or even L-jetronic] fuel injection will produce at idle emissions WITHOUT a catalytic converter that will pass California emissions tests.

The cat was always intended as a "scrubber", in case the fuel system made a mistake.

-Cutting off your catalytic converter isn't a good idea. You can buy a catalytic converter right here: www.randomtechnology.com that can flow enough gas to equal over 500 hp. If you install these on your car, you will be following the law, and perserving air purity, all while not losing a single horsepower.

NO, I don't have these on my car, and NO I have nothing to do with Random Technology. But their products are GOOD. And a good idea!

N!

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