JONBLARC7

Never mind it's 535 if you didn't already have a LT5 throttle body to send them. I'll pass, it's not and all out race truck.

I can get the LT5 for 196.74 through my father in-law. The soler is 335.00 that 138 i save will go towards a LT2 intake.

I got a EVAP that won't complete so I've been logging to see if it ever finished it's test so I can pass inspection. So if anybody know how to force the test to complete I'm all ears. Just in a first gear pull shifting at 6,276 or something like that. My MAF 43.18 and MAP 94.3

I can tell you what my cammed 6.2 with Air raid JR with modified stock air box and headers does. I'm getting ready to buy a ZR1 95mm throttle body and try my hand in some DIY porting. Will see how it goes.

I'm been think about doing this mod to my truck since I can spin mine up a-little higher with my cam and ported heads. Here is a good video on what needs to be done to make it work with a with our tucks. It's doesn't look all that bad to me.

TSP carries a Flex fuel kit that fits up at the fuel rail. It should be real easy to install. If I didn't already have my wires extended and just need alittle 50 dollar DSX piece I would buy this one. https://www.texas-speed.com/p-8612-smg-silverado-sierra-2014-flex-fuel-kit.aspx

Make sure you don't use those Russell fittings. I had them on my truck and they failed and sprayed fuel all over the ground. Sounded like a shower under my truck when the low side pump primed. And straighten out that OEM fuel line did work for me either. I made my truck run lean at WOT. The other guy in the thread tried to argue with me that 02 sensors didn't show his truck going lean. I didn't feel like arguing then, but O2 sensors aren't accurate for anything but stoich. So he had now way to really know even with HP tuner VCM scanner with out a wideband. I ran the truck right before I put the fuel line on. And it held steady at at .87 to .88 Then I slapped that OEM line I straightened out on and ran the truck again. It idle and cruising speed it was fine but when you put more fuel to it under Power enrichment my wideband jumped up to .91 to .93. So I went straight back home removed the line and went right back out to log. Wideband straight back to .87 to .88. With the straight through Russell fitting I didn't have this problem. But they failed so when I get back to running E85 again I'll just put the 50 dollar straight through DSX fitting. I really liked E85 on my L86 that was stock except unlocking E85 and some trans tuning. Then I had it on E85 just cam and heads and that was even better. Then the fitting failed before I put the full bolt-ons with cam and heads. I plan to use the DSX fitting in the next week or two.

Well I'm going too stick with a XR1. The 12909 is no louder than a stock muffler. It's just a-little deeper. When you add headers and no cats it gets much louder. I can get the XR1 in the round 15"x5" round case. And from reading comments on YouTube the round XR1 is suppose to be less raspy. The 12909 is a 22" body and if I go down to a 15" body on a XR1 I should pick up the little bit of sound I want.

Can you explain why??

I watched some videos of the Atak and it sounds nice. But I'm looking to just swap mufflers since I already have 3.5" pipes.

I agree

Is that a 3.5 in and 3.5 out

Just like the title says will it drone. I have a magnaflow 12909 now on my cammed L86 with full bolt-ons with headers no cats. And want a tad more bark, this muffler really tones down the cam at idle. And WOT it seem a-little to raspy. Almost tin can sounding. The wife drives a Scat pack 6.4 with muffler delete and dynomax bullets in thier place. Anything I could do to get my truck to sound closer to her car would be great. Because that thing is music to my hears LOL. I had a 12909 on my last 2008 6.2 and liked it but this Direct engine sounds a-little different. I pull a wakeboard boat all summer, so I need to keep the drone to a minimal for my families sake.

I was the same way at first when I got my cam. Plus my truck is my DD so I needed it up and running ASAP once rebuild it after I stuck a lifter. I did just a cam first then added headers, intake and wideband later once got more funds to play with the truck. By then I learned enough to do all the changes for the new mods by flowing Goat Rope and what I learned from the HP tuner forum. She runs great now.

Had the same thing on my L86 at 125K miles. Miss on number 7 it was a bad lifter. Now I have a stage 2 TSP cam and DOD delete because of it. I also had a miss on #5 at 115K miles. That was a broken valve spring but It didn't drop the valve so it was a cheap and easy fix. Don't drive it anymore and pull the valve cover off of the drivers side NOW. It's easy to do. Lets know if you have any questions about it.

Very nice. If you want to learn HP tuners for your self just so you can log and know what your looking at and poke around in the tune. Go look up Goat Rope Garage and watch all his tuning 101 video's. He is very specific to the GEN V platform. https://www.youtube.com/c/GoatRopeGarage/featured

I guess I got under your skin. See it's not very fun. Have a good day and enjoy your truck!!!!!

I'll never understand people like you. Who just get off on being a dick to be a dick and hiding behind a keyboard makes it so much easier. You still haven't posted up your truck to let us take a look. I built my truck myself, Heads, cam, DOD delete, shimmed the the HPFP, headers, E85 sensor, intake, wideband and I'm not to bad with HP tuner. The only thing I didn't do is weld in the muffler. Let us know how your build is going. I'm waiting??????? But don't waste your time. Have a good day.

It's his money he can build his truck any way he wants. Why come on here just to talk ****** about how somebody didn't build it right. When you, don't have a build your self. You say you like NA builds but don't have the funds. Well maybe he didn't have the funds to buy a 6.2 at the time. So he built a truck that would walk my cam and heads 6.2. You want to keep it NA if you do build your truck right. Well well if that isn't leave 200 HP on the table. But lets be honest, your not ever going to build your truck and that's ok. But why tell somebody they needed to spend more money when you can't spend it your self.

Sorry I should have read the rest of the thread before I asked the first question. Your set up is exactly what I'm going for down to the LT4 injectors only. What cam do you have? I have the TSP stage 2 218/226 with 32% over fuel lobe.

What does it stall up to now and do you have a 5.3 or 6.2?? and what mods do you have. I would love to put one in my cam, heads L86.

Time is money too and that's a lot and I mean a lot of work for 10hp. If you going to do it your self just save up for a full cam kit and go ahead a delete those ticking time bombs they call DOD lifters. Ask me how I know.

Did you port your 6.2 intake manifold too?

Mine only had one resonator. There are 3 cats, So you could remove the third cat with out any problems.

louder yes but not a huge difference. With my headers and catless y pipe. I put a magnaflow 12909 on. I wanted it just alittle louder so I cut off my resonate and left it dumped over the rear axle. It made it just slightly louder but better.