Exhaust components/assembly questions

[JJKJ]

I'm new to Camaro ownership, well C5 Camaros anyway. I'm still waiting for my 1LE with NPP to show up. My mod plans include LT headers with high-flow cats, x-pipe and retain the stock NPP mufflers.

What I'm trying to figure out is where does each component start/stop and how are they assembled from the factory (welded, clamped?).

So for LT headers with high-flow cats, would I need a custom-length x-pipe or are there x-pipes designed to bolt up to headers with cats? Are there x-pipes that bolt up to the factory mufflers?

I see the term axle-back and cat-back; I'm assuming the cat-back includes an x/h-pipe and mufflers whereas the axle-back is just mufflers?

I see most LT headers have 3" collectors, where are you guys stepping down to 2.5" for those not doing a full exhaust?

If anyone has a pic of a full exhaust system you can post, that'd be great as well.

Thanks!

[biggerisbetter]

Originally Posted by JJKJ

I'm new to Camaro ownership, well C5 Camaros anyway. I'm still waiting for my 1LE with NPP to show up. My mod plans include LT headers with high-flow cats, x-pipe and retain the stock NPP mufflers.

What I'm trying to figure out is where does each component start/stop and how are they assembled from the factory (welded, clamped?).

So for LT headers with high-flow cats, would I need a custom-length x-pipe or are there x-pipes designed to bolt up to headers with cats? Are there x-pipes that bolt up to the factory mufflers?

I see the term axle-back and cat-back; I'm assuming the cat-back includes an x/h-pipe and mufflers whereas the axle-back is just mufflers?

I see most LT headers have 3" collectors, where are you guys stepping down to 2.5" for those not doing a full exhaust?

If anyone has a pic of a full exhaust system you can post, that'd be great as well.

Thanks!

long tube headers with cats are the same legnth as your stock manifolds. so the x pipe that works with the stock exhaust will work with long tube header setup as well.
you are correct on the catback vs axel back exhaust.
you can get a lt header for 3" exhaust or for 2.5 it all depends on what you want

[05mbm]

I would get LG's long tube headers. Their system goes all the way back to mufflers and includes the x-pipe. Essentially you would be keeping your NPP exhaust as an axle back exhaust.

[JDP Sales]

See below in bold. If you have any questions feel free to call, PM or email me anytime!

Originally Posted by JJKJ

I'm new to Camaro ownership, well C5 Camaros anyway. I'm still waiting for my 1LE with NPP to show up. My mod plans include LT headers with high-flow cats, x-pipe and retain the stock NPP mufflers.

What I'm trying to figure out is where does each component start/stop and how are they assembled from the factory (welded, clamped?).
Manifolds - Connection pipes containing cats - Cat-back containing H pipe, resonators and mufflers. The connections are flanged at the manifold and clamped at the catback.

So for LT headers with high-flow cats, would I need a custom-length x-pipe or are there x-pipes designed to bolt up to headers with cats? Are there x-pipes that bolt up to the factory mufflers?
I recommend having a Magnaflow - 2.5" Universal X-Pipe part # 10791 welded in place of the stock H-pipe.

I see the term axle-back and cat-back; I'm assuming the cat-back includes an x/h-pipe and mufflers whereas the axle-back is just mufflers?
Correct

I see most LT headers have 3" collectors, where are you guys stepping down to 2.5" for those not doing a full exhaust?
The step down typically happens in the connection pipes

If anyone has a pic of a full exhaust system you can post, that'd be great as well.

Thanks!

Best regards,

Tyler
888-308-6007

[JJKJ]

Thanks for the answers everyone. Cleared up my questions.