catless y pipe and high flow main cat
Thread Starter
Burning Brakes
Joined: Dec 2006
Posts: 782
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From: Ga
catless y pipe and high flow main cat
opinions on summit pn cto-9518 (sorry i dont know how to create a link). seems like a good deal and possible power adder over the stock system? thanks in advance
Instructor
Joined: Jan 2003
Posts: 233
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From: IL
catco unit
I put one on my 85' and then used the later model Borla mandrel bent rear Y pipe. It turned out much better cause no flat flanges on the cat assembly. The Borla rear Y pipe might be somthing you might want to look at cause its much less restrictive. I found some OEM LT 1 mufflers that sound real sweet!
Le Mans Master
Joined: Jun 2006
Posts: 5,642
Likes: 5
From: One day you're a Comet...the next day you're dust... Arkansas
I put a Magnaflow main cat on mine and had the muffler shop cut the pre-cats off and sleeve the y-pipes. It runs and sounds better. Make sure they leave the O2 sensors in or your milage will go in the dumper.
