IndyC3

Here is my C3. Ive had it for 10 years now. Almost to 93,000 miles. Made 1 year in green, black and pewter. 4400 total. LQ4 engine http://www.silverado...e&do=view&id=61

My 1 7/8 American racing headers went right in. I didnt have to modify the truck or the trans to exhaust mount. I didnt need any extensions either. The only thing i had to do was tweek one hanger a little in a vise to get them parallel. My tail pipes both ended at 3in straight tubing to mate to a custom exhaust. All in all it went smoother than expected. I helped my brother install some in his Jeep srt8 this weekend-Now that was a major PITA!!!!!

No performance gains. Stick with the stockers they work just fine.

This looks like it would be a great addition to any SS. You can get the trans controller with it also. http://www.tciauto.com/products/6x/

Congrats! If your in cali you gotta go to in-n-out burger. Also if you like mexican there is a El Torito on Redondo Beach pier (south of santa monica) that is pretty good. Have fun.

When I gutted my cats I didn't see any improvement in times. If you cut them out and put a tube in it's place it should be better. Since then I have gone to a headers- no cats set up.

I use a ZEX sysem. With a 75 hp shot I dropped 1 second in the quarter mile. The kit is really easy to install and only has 3 wires: 1 to a switch, 1 to a ground and 1 the a TPS wire. It learns where full throttle is. A window switch could be added also if needed. 2 thumbs up for ZEX!

That doesn't sound like a sending unit. Sounds to me like your gonna be pulling the oil pan on that bad boy to change some bearings.

Thanks guys!

Hows the install coming along?

I looked in the inlets and there was an x right at the entrance and yes there is a y at the outlet. Its funny because I dont see anything on their website about that muffler having an x in it. I took the front muffler off but now it is too loud so I'm putting it back on. If there was only 1 x in the system it would probably be perfect.

We'll guys its quiet. Too quiet. I'm taking the front muffler off tonight. One thing I was surprised to see was that the rear muffler had an x in it when I cut the tubes to reposition them. At least it doesnt have any drone at this point.

I'm jealous!!

The tailpipe is 4 in. I saw how you had to fight some noise thats why I'm doing this.

I saw what Moregrip did with his exhaust a while back. He used 2 mufflers after an x and then a dual 3 in/out and dumped it at the bumper. I have the mid pipes on now and it still sounds like a Top Fuel car when they first start on alcohol maybe louder.

I'm not gonna argue that a muffler has the same restriction as a straight through pipe. I wasnt born yesterday. I just dont want to wake up the neighborhood using 2 short 3" mufflers. I believe with this system the performance will be there.

Trust me those muffler are straight through there is basically no restriction in them. It'll be just fine especially since it is 3 inch pipe. It was 2.5 yeah then it might be some restriction.

I've been thinking about installing headers for a while now. When I saw the American Racing Headers I had to have them because of the 1 7/8 and 3" mid pipes. I am trying to keep the noise tolerable so I am using 2 mufflers a 12599 magnaflow with built in X and a 15789 kit for the 2500 truck. So far I have put the headers on and moved 1 mount on the tailpipe. I have some fab work to do on both sides of the first muffler to connect everything. Here are some pics of the work in progress.

I saw those on TV last weekend. A bit expensive.

My 6.0 had egr. I just made a block off plate.

When you get it on let us know how much boost your getting and pulley size. I'm thinking about upgrading in the future. That is a 1900 correct?

Here is one of the mufflers I am using. This is the one with the X in it. The second muffler will have a single 4" out let.

Those are some pretty short mufflers. The larger the muffler the quieter it will. That Magnaflow 12599 I was talking about is listed as a 5x11x22 but it actually measures a little larger. Adding length the your system should help quiet it down also. I am going to have 40 inches of muffler under my truck. If I were you I would move that X forward, move the 2 xr1 mufflers forward and put a larger muffler where they are now. Magnaflow makes a 5x8 dual 3 in/out straight thru muffler that should work nicely. BTW nice truck

Do the 3". I have a set of 1 7/8 AR Headers coming also. I am using a dual 3" in/out x pipe magnaflow muffler(12599) and then to a dual 3" in to single 4" out(15789kit). I don"t want it to be to loud. Let us know how yours comes out.

I wish I could make it. I live only a few miles from the park. I will be out of town this week end. I go to most NHRA races so it is difficult to make most events.