00pooterSS

iTrader: (40)

Nice, the L86 manifold is good for 9 unported. Ported 17 hp per Gwatney's website.

00pooterSS

iTrader: (40)

Here is the thread with the power gain info and dyno graph

https://www.performancetrucks.net/fo...eply&p=5299404

Post number 1 in the thread.

hunterbohanan23

I was considering ported but don’t want to spend $500 on it. the throttle response and mid-upper RPM range i’m looking forward to see improvements along with this exhaust increasing midrange. mine is getting procharger or 2.9 next year so didn’t see the need for porting an intake that’ll have air shoved in it for 450-500 rwhp or taken off completely for a Whipple

00pooterSS

iTrader: (40)

I hear ya, I'm eventually gonna port one myself and put it on. Haven't gotten around to it though. I know blbdodge likes his L86 intake

But even with boost you'll see gains if it's ported. The gains you see N/A transfer over to equal or larger gains on boost.

I'm personally done with modding the baby dick 5.3 though and am gearing up to do a 6.2. The 6.2 makes such a huge difference and they have gotten really cheap so to me there's no point messing around with the 5.3. Plus an added bonus is the 6.2 comes with a 6.2 intake already lol. I say that because I was considering getting a 6.2 intake and throttle body for the 5.3 but screw it, I'm gonna go to an entire 6.2.

Bgbldodge

@00pooterSS I only welded the center section of the y-pipe and welded the flange that bolts to the cat back on to the y-pipe. It's still got clamps at the headers and a disconnect at the factory location on the cat back. Those were the only two spots that ever leaked on mine even with foil. Welded them yesterday and clearanced the bracket on the frame where the trans crossmember connects and finally it sounds like a decent truck and not like my 35 year old blazer haha.

00pooterSS

iTrader: (40)

That's pretty much how mine is. It's welded everywhere but at the header collectors. So I can at least move them around some if needed.

hunterbohanan23

hey guys, throw some copper RTV and those clamps i posted and it’s tighten them down until they won’t clamp any tighter

00pooterSS

iTrader: (40)

I may someday, but at this point it would be a major pain to pull the exhaust back to get the collectors to slide back far enough to get the RTV in there.. and my foil is doing damn good to be honest. I really don't have any leaks to speak of. I just have header sound. Overall mine is super quiet in the truck and I can't complain. It'll probably be a next time I have it apart thing (doing the RTV)

Bgbldodge

That foil trick is pretty slick. I took a wire wheel on my angle grinder to clean off the old foil and that stuff wouldn't budge. Had to get a grinder to get it off.

00pooterSS

iTrader: (40)

Yeah it's the best thing I could come up with that was easy to put on, would work well, and come back off.. mostly lol. I tried all kinds of stuff and that one came to me out of nowhere one day.

Last time I had my clamps off I noticed some of the foil had hardened and was getting stuck to the pipe, as you saw.
That was interesting, I didn't expect that to happen lol.