Yay a performance mod!
 

LPP headers GMMG idle - YouTube

LPP Headers, ORY, GMMG Exhaust - YouTube

http://i.imgur.com/gBgplQul.jpg

http://i.imgur.com/VmXB9Erl.jpg

LPP Headers, and an LPP Y pipe.

She be raspy. Gotta put a kitty kat in there to tone it down and please the NJ inspection stations!

Sounds like POWER!!!!

So when is the trip to the track or dyno to see how much it helped?

I wish I had a stock dyno number, but I never got a chance to do it!

Would have been able to go Saturday but we got rained out. Probably next meet at island!

Sounds pretty good. I like those headlights as well. :)

so...

apparently the Y-pipe is the cause of the rasp?!?!?!

http://ls1tech.com/forums/lt1-lt4-mo...kill-rasp.html

Side note.

It is without a doubt NOT the same as a pace setter Y. Not even close.

Very true, I can see the difference in the merge of the 2 pipes.

Regardless, people are saying the Magnaflow Y transition fixes the rasp I have.

Throw the cat on first and see where that leaves you.

Aye. I am going to have it put on with flanges so I can remove it if needed. or should I just weld it in ya think?

I think you can't have clamps or flanges and pass.

ah poop. well then...... welding it is lol

There is a way :lol:

Buy another off road y and swap the entire half

Hey, PolarBear probably still has the one I gave him.

True. If he doesn't have it, I can just make the magnaflow Y people are raving about, and use the LPP as the catted Y version :P lol

Sounds awesome!

I had a custom y made since my headers didn't come with one. I used a Magnaflow merge with two of their bullet cats and don't have much of any rasp, except a little bit at high rpm but it sounds good like that lol

I didn't get a baseline either, but def a SOTP gain 8)

Why can't the cat bolt in and out?

Stock LT1s had it bolt up at least one side and I know my truck had the cat bolt up on both sides. I think.

Either way, def cut out the horrid cheap merge and weld in a nice one if you can swing it.

I got failed for it at Flemington, which is where I assume he is going to go. Makes it too easy to "tamper" according to them.

This was because it was not the stock exhaust.

If the cat I put in doesn't cut it, I will replace the merge with a magnaflow Y merge as mentioned before :)

That is where I'll be going. I'll be sweating bullets next june when I try to go through lol

Not to go far off topic, but you have a OBD2 car, find a friendly shop who will just plug in and run the test minus a hard look under the car. Can't be that hard.

I would say go to bakers basin, but since my last inspection they switched over to the chassis camera vs the mirorrs

I thought they cracked down hard on that in NJ and places don't do that anymore? From what I remember lol