OK, so....I now have an '08 wit da 5.3. I'm planning on getting some LTs here soon, and I want to know if there is a y-pipe out there that is made to allow me to keep my cats??? I removed the cats on my '02 and regretted it.
Printable View
OK, so....I now have an '08 wit da 5.3. I'm planning on getting some LTs here soon, and I want to know if there is a y-pipe out there that is made to allow me to keep my cats??? I removed the cats on my '02 and regretted it.
yea they some companies offer a y-pipe with high flow cats built in
Hmmmm, that could work, but i would prefer to get just the y pipe to use w/ my stock cats.. Do you happen to know the companies names or even have links???Quote:
Originally Posted by CHEVROLADE
That is kind of a waste. Just IMO. I would use high flow or nothing with LT's.Quote:
Originally Posted by jetersaurous
Would I have to worry about fuel economy without cats? I do plan on getting retuned as soon as headers are on btw.Quote:
Originally Posted by kerrige
Generally speaking the cats are a serious restriction to exhaust flow. You will likely be about the same on gas mileage maybe a little better, but the biggest difference will be the tune it should help your MPG and together with LT's you will make some fun power.