Just put the car thru a tail pipe emission test and passed. Thought I would share the info incase others would like OR need the same results. Tuned and built by Darth/Sinister. No muffler and sounds a bit quieter and crisper.

Converter is from a 2013 3500 Chev 6.2L gasser

Was a crime to cut up the old exhaust, and also needed some more space so the trunk lost that battle.

The car if anyone needs more info https://www.fiero.nl/forum/Forum4/HTML/055206.html

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88 3800 turbo...10 sec Quarter Mile Member.

It has always been my opinion that OEM factory GM catalytic converters used on trucks flowed the best and performed the best in performance applications.

Nice results but it is what I would expect from a 3800 with a good working cat on it.

Thanks for sharing.

-ryan

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OVERKILL IS UNDERRATED

Custom GM OBD1 & OBD2 Tuning | Engine Conversions & more | www.gmtuners.com

Looking good Pete!

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'11 Subaru WRX
'04 Mazda RX8 Build Thread
My former Fiero- '88 GT- 3800 Turbo 11.367@121.03mph (Sold and gone now)
GM Tuners