Cheap mufflers

[RandallNeighbour]

The reason I asked is that when you wrap headers on our cars, the additional heat moving downstream usually burns out the car's cats in short order. However, the muffler being the last in line wouldn't do much more than put out more heat through the pipes. Then the only concern would be overly hot pipes melting the plastic bumper cover.

None of this may be a genuine concern, but talking about it prevents me from having a car with a lower resonating muffler that melts my bumper cover or worse, sets it on fire!

I should give it a try though. Might be a very cheap fix to a very annoying problem and I can always keep a good eye on the plastic to see if it's getting too hot.

I will post any thoughts I have about it after I do it.

[DFW02S]

I just picked up on the the mufflers from John and George at Top Speed and here's what the discrepancy looks like before putting it on the car:



That's a stack of 6 business cards under the right tip.
Here's a measurement at 1/8th to 3/16ths difference, sorry that I couldn't level the tape:



The welds look pretty good too:




When I mount it on the car, if someone is close enough to notice that 3/16th's difference, I'll just wave them past because they're too close to me.
The appearance is completely insignificant, I can't wait to hear it wail at the track this weekend!

[DenverSteve]

I'm interested in the tone and volume when you get these going. Are they the "racing" muffers that are advertised cheap? Since I never putz around at 2500 rpms, it's unlikely I would experience the drone. I rarely drive below 3,000 rpm.