1 Clean WS6

iTrader: (1)

Hey all!

I'm in the market for getting a cat-back for my '05 SD. I've had a bit of trouble finding a company that makes a system for my truck. The 6.0L (LQ9), crew cab and 5'8" bed combo seems to be a bit of an oddball.

I found a system by Magnaflow marketed for the 1500HD 6.0L (LQ4) with the part # 15782. It is described as such:

"V8 6.0L Crew Cab, Short Bed 5 x 11 x 22 in. Muffler, 3 in./4 in. Tubing, 4 in. Tip; SINGLE REAR SIDE EXIT".

Will this system work for my truck??

Pic...



Many thanks for your help!

Mike

lq9crew

Easier to search for a catback for a Silverado SS. They used the same setup as your truck and mine.

The one above is not a bolt on for your truck. It will be too long among other things.

BigCountryx

iTrader: (3)

I would bet it slides right in... most catbacks for these truck are prety interchangeable as long as it's the same L motor. For example I have that same tailpipe from that kit with an Aero STX640 muffler and it fell right into place. Good luck.

ForcedTQ

iTrader: (1)

You'll want to check the inlet size on the existing system to the muffler. I believe they are dual 2.5" not dual 3". I picked up the Magnaflow system in my signature which is designed for the SS and the Denali's. I ended up purchasing the cat pipes off of an SS so that I could run the whole thing like OEM since I was installing long tubes, but for you it would bolt right up. If you want a single rear exit exhaust this one in my sig is pretty damn nice.

Here's a link to my exhaust build https://www.performancetrucks.net/fo...d.php?t=403537.

tiffo60

iTrader: (2)

Why not just go to a muffler shop and get a custom setup? You will more than likely save a couple of hundred bucks and have exactly what you want.
I did a true dual magnaflow set up on my Denali and stainless tips and seems like it was around 400 or so