I have a T1r Sparrow dual exhaust. For the longest time ive never had a problem getting the "burnt" tips and canisters looking good as new.

But this last month or so i must have driven over some chemicals or something beacause now they look dull and looks like drip marks on the tips. Nothing i have used has worked. What do you guys think i should do?

 

wd-40 is a pretty safe bet...
spray it on a clean rag and rub it on the pipes. let it sit just a minute or so and buff it off with a dry rag.
then report back. if this doesnt get it , you got something more goin on- and we will move to a more aggressive product

 

trying that right now....

 

Didn't work.

What elese should i try?

 

Try some Flitz metal polish

 

good suggestion...
just about any quality metal polish is likely to help-
they are more aggressive than wd-40, so my suggestion is to get under the pipe (if you have a creeper, this is the time to use it- or an old piece of carpet - you will be on the ground on your back so you can see how its going).
do a very small area on the underneath part of the pipes (cause no one can see this area)- to make sure this works without any damage to the pipes. there is some chance that it will also remove your bluing.
if you decide to remove the bluing, and want to reblue them- you will need some more advanced help, unless you can use a blow torch. you can imagine that its not easy to torch the pipes on the car with the plastic bumper parts right there... but again, this is one step at a time, and the next step is to try a metal polish under the pipes.

 

Ok, going to pick up polish now.
Thanks for the advice...

 

I have the sparrow too. Remember that the tips are titanium and they are not going to look silver like the stainless canisters even when polished. They should have a titanium color with blue tips.