With the old 305/dual set up I had a set of universal replacements, am looking at a good set of stainless for the new exhaust. My county in Pa has a visual emissions inspection & gotta run them. Its better than a sniffer test.
Cats or no cats?
- Thread starter CaliWagon83
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[QUOTE="565bbchevy, No cats on the 565 and not even sure if they make them big enough.
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I'm pretty sure cats are available....Problem is - the company would run out of supplies before they're built to your spec.
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I'm pretty sure cats are available....Problem is - the company would run out of supplies before they're built to your spec.
There was an engine masters about that. They were the same within a hp or two of eachother. H pipe sounds throaty-er and is better if you need to take the exhaust off more than a few times. X pipe sounds like a newer car, raspy-er, and is more of a pita to work around.
pontiacgp, interesting video. I know with a lot of newer cars with fuel injection, they actually run a little better with a little backpressure (i.e. cat). Anecdotally, on a Nissan Sentra I had in the mid-'90s, I put a header on it thinking I would pick up all this power, and it actually ran like a dog with it. It ran a lot better with the stock exhaust manifold.
Hard to take that video seriously when mr. mumbles can barely pronounce the product he's selling.
Cala-kick-ick.
Ca-lick-ick
Cala-lala-ick
and by the end he was so lazy, they just became Calick converters. Good job!
palm-face @ back-pressure and the premise of this whole thread.
Cala-kick-ick.
Ca-lick-ick
Cala-lala-ick
and by the end he was so lazy, they just became Calick converters. Good job!
palm-face @ back-pressure and the premise of this whole thread.
For me it basically came down to fitment, with my exhaust there would be now way to get an x-pipe in there without interference issues, many people prefer x-pipes but I like the ease of installation of H-pipe which I just call a "balance tube" since that is really the only reason I have it on there but I would take either style over not having something in there.
I still run a cat, you can smell if a car has a missing cat and its not pleasant . G bodies came with several different cat designs from the factory, base models had poorer flowing units than the performance models. The MCSS L69 cat is a pretty high flowing unit. The original 231 V6 in my Regal had a much longer but narrower cat than the L69 which is a very wide and short cat, maybe the 231 required more exhaust scrubbing?
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The 2025 Calendars are HERE. Two different editions, two different sizes, and a digital package!! Starting at $12.97US
