I installed a Gibson dual single side exit catback on my truck a while back. The pipe that leads to the rear-most exit butts right up next to my spare tire. Wrapping it with exhaust wrap kept it from burning my tire up until the tire rubbed a hole in the wrap. Then a nice sized chunk of rubber got burned out of the edge of the tread. I rewrapped it but it's probably only a matter of time before it happens again.

So, the other day I stopped by a muffler shop and asked for a quote to do a custom re-route of the pipes to make them a dual rear exit setup. I was quoted $200 to $250 and about 4 hours of time. Today, I took my truck to another shop for state inspection and started talking to a guy there about what I had in mind. I didn't realize they do exhaust work as well. He recommended leaving the forward exit where it is and just reroute the rear pipe across and out the same spot on the other side (dual side exit). He said it would take him an hour or so and he'd charge me a C-note for it as long as I'd keep the tips I already have, which I want to do anyway.

Anyway, I'm posting a pic of my current setup, I took this the day I installed it. Most of the duals around here are rear exit. But my main goal is to get the hot pipe away from my spare without relocating or downsizing the spare. But I don't want it look strange either. Opinions?

 

Move the exits in front of the wheel--and my lord, $250 and 4hrs??? Shop that did my entire setup front-to-back was less than that and finished in about an hour and a half.

 

Yeh it took my less time than that to remove my stock exhaust and install this entire kit. I thought it sounded a little high, which is why I'm glad I got a 2nd opinion. I don't really want the exits in front of the wheels. Behind them is fine and I know dual side exit is common in some places, but don't see it around here very often. I guess it seems like a no brainer to go that route.

 

Are your current pipes side-by-side or over-and-under at the point where they pass the spare? I haven't looked up near my spare in awhile now, but if my memory serves at all, there should be enough room between the tire and the frame to have the pipes on top of each other and then bent horizontal again for the exit. If it's a SI/DO muffler, could be as easy as putting the muffler on its side and running new pipe to the exits. Just spitballin' some ideas for ya'.

 

They are side by side and, yes, there is enough room to move the one that is in the way and keep the exits where they are. But it's going to cost me just as much, or almost that, to have that done. I wanted a dual exit to begin with and bought this single side exit specifically because of where the spare tire is and how big it is, and it was still an issue. If I have to move a pipe, and cost is about the same, I'd just as soon have it exit out the other side.

It's a SI/DO muffler. See the pic below.

 

You can do it a bunch of ways, you need a certain amount of length in a tube for proper scavenging, but even the dual in-front of the rear tires is enough.

Loudest is going to be dual-same side in front of the rear tire and sound db will diminish slightly but deepen the farther you go back. Rear exit is the quietest but should have the deepest tone although we're not talking a huge difference here.

If all the components are in good shape, then I'd probably go the least expensive route to get the pipe away from the rear tire. BTW, $250 to basically re-route both pipes to dual rears isn't way out of line, on the high side of what I'd expect a shop to charge, but not what I'd call way out of whack...

 

Yep, I do agree that it's not out of line and I would pay that if no other option and/or if it was just absolutely what I wanted. I was fine being the only guy around with single side exit duals, so may as well be the only one around with split side exits. Especially at half the cost.