Hey guys, I have been running a T1R testpipe for the past few months and I just noticed yesterday after I washed my car that my rear bumper was turning a brownish color around the exhaust tips due to the exhaust fumes without the cat. After 30 minutes of cleaning it with a cleaner wax the bumper looks brand new, but it was a PITA to get it off. I just wanted to remind everyone that is running a test pipe to wax their rear bumpers for a little protection. Also, I wash my car every week and I still got this buildup so just keep an eye on it .

 

Yup, that is the only downfall to a test pipe. Don't mind tho, the benefits far outweigh that. I clean mine with rubbing compound and it comes right off. Do it about once every month or two. Whenever it becomes yellow enough to look bad.

 

what brand products are you using to clean the bumper?

 

I use mothers chrome polish.
Not the best method but it comes right off.

 

thanks for the heads up i will start doing that when i get mine installed

 

Screw the environment, protect your bumpers!!!

 

If you are that worried, dont post here. It will over load the severs resulting in a "crash", forcing me to drive my car all over town in a "pedal to the metal" frenzy!

Please dont be dumb. We are all well aware.

 

^ "A pedal to the metal frenzy"

 

a S2000 w/ test pipe pollutes less than most cars on the road today. Mine passed smog in Charlotte NC

 

You can use grime-away and it takes it off with 1 spray and two passes with a wet towel. It goes from brown to shiny in 10 seconds. Make sure you completely wash all of the grime-away off afterwards though.