Tri-Mil 2-tip muffler...will exhaust discolor rear bumper?

[rcooled]

Is anyone using one of these Tri-Mil 2-tip mufflers on a pre-'72 Ghia with the stock towel bar bumpers?

Are the tips long enough to keep the rear bumper from getting discolored by the exhaust? Are they about the same length as the stock peashooters?
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'63 Ragtop (current)
'65 Ghia coupe (totaled)
'67 Ghia convertible (current)
'69.5 Ghia convertible and
'62, '63, '65, '69 Bugs (all long gone)

[laker]

i'm using one (ceramic coated) on my 72 Ghia convert, no problem so far.
Is a little laud for my taste.

[Rome]

This is a ceramic-coated Tri-Mil on my '64 (on '70 pan). Sturdy and well-built unit that was easy to install. Rear openings of pipes are just about even with the end of the bumpers.

Exhaust soot would be mostly influenced by your carb mixture (rich). My engine has dual-throat dual carbs. I had this muffler on the car about 3 years, about 2000 miles total. Did not notice any soot or minor discoloration on the underside of the bumper blade. Didn't drive it at all in 2015. When I next drove it in early 2016, I no longer liked the tinny, "immature" exhaust sound. I replaced the Tri-Mil with an older, reconditioned Berg header and single quiet muffler. Sounds much richer and "refined", and actually also quieter.

[rcooled]

[Rome]

Thanks, r. Some quick rust repair work in the rockers done using Photoshop .

As to the performance, I did not notice a difference between the TriMil and the Berg header; based on seat of the pants feel. Never had a dyno run to compare- it would not be worth it with the near-stock 1600.

My Berg header and muffler go back about 15 years. Back then I elongated the holes in the header slightly to rotate the Berg muffler that it is horizontal, or tilted ever so slightly upwards. When new I had the header aluminized at a company in Hartford CT. The coating gradually deteriorated, causing rust pockmarks and the coating flaking off. So when I prepped the header last year for reinstallation, I used strips of emery cloth to laboriously sand off the rust, wiped off the pipe, then sprayed it with rust converter. Finally I painted the header with header spray paint. Did same with muffler which was not aluminized, but not rusted badly. It's held up well after this past year, though I probably drove less than 300 miles total .

Before reconditioning the Berg system, I scrounged up a regular generic header to try out on the Ghia. Yes, the lower pipes and the muffler flange simply hung too low. That would unfortunately also be a problem if fitting dual quiet mufflers to the Ghia; just looks like too much "junk" hanging down under the apron.

Even if you did get some minor discoloration under the stock bumpers from the Tri-Mil, it would be quickly removed with chrome polish at the end of the driving season. There was no discoloration on the TriMil pipes either.

[c21darrel]