I think the post tuck and stretch tank exhaust mods are complete. Both the tummy tuck and GenRight Crawler tank lead to less real estate for the exhaust. I had a full stainless 2.5” exhaust since before the stroker went in (stock was 2.5” to the Cat and 2.25” behind that). Even the extra 1/4” in diameter made the tail pipe a little tricky without the tuck and stretch tank (which is wider though shorter front to back and not as deep as stock). When I put the stroker in, I also changed to a stainless header. To protect that from cracking, I added a flex coupling in front of the oil pan.
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That, in turn, made the rest of the exhaust a little more wiggly which wasn’t a problem before the tuck. But after the tuck, the Cat would sometimes rattle on the UCF skid (2.5” below frame and no body lift). And after the GenRight tank, the tail pipe needed to be pretty stable to stay away from the tank skid. My solution was an additional exhaust hanger near the engine/transmission junction.
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It uses one of the starter bolts to secure it. I thought about a frame attachment, but that didn’t make sense because the forward attachment is to the header and the next rear is to the back of the transmission (both of which shouldn’t move relative to one another). Here’s mount to the trans and the space for the Cat:
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Its nice that with the tuck and MML, the front of the exhaust is all above the frame rail.
View attachment 358662The stainless 2.5” tail pipe was previously custom fabricated and TIG welded by a local artist and had to be redone by the same talented individual. It’s tight but hits nothing and is rattle free. Its hard to tell in my pics, but it clears the tank skid by 1 1/2“ and even after a 45 min drive mostly in town traffic today, I could leave my hand on the skid. So heat apparently is not an issue.
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I really like the tailpipe not going below or behind the tank skid. It should be well protected. The exhaust sound is also nice again. The loud buzzy drone it had with the temporary post-muffler dump is thankfully gone. Amazing what a difference just adding a tail pipe makes.
For reference here was the previous situation:
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With the hi-lift and drop hitch gone and tail pipe re-configured (and the better clearance tank skid), the departure angle is looking better.