I have been contemplating test pipes or high flow cats for a while now. I heard all the pros and cons for both and finally decided to go with Ultimate Racing tp's. They main reason I chose this brand is because they advertise that their tp's will not trigger a CEL. Can I get some false advertising with a side of BS! My CEL came on an hour after installation. I had four codes: two 0420 and two 0430 (all stated catalytic emissions below normal.) The pipes have also depleted my gas milage. Before, I was getting about 400 miles on a tank highway and city with a little punching the gas from time to time. Now it is around 330 miles highway/city with no excessive speed. I just wanted to let you guys know before you make the same mistake I did and purchase Ultimate Racing's Test Pipes.

 

I think they are supposed to not throw a CEL on 03 models. Yours being an 06, Im not surprised.

 

^yeah. And it wont lower ur gas mileage..the secondaries dont mess w/ ur A/F i believe

 

it lowers you gas mileage because you are getting on it more casue they sound sooooo good.


tommy

 

I love mine. The exhaust note is just plain zexy.

 

I am surprised that any manufacture would guarantee that any test pipes are compatible with all emission control systems. Sort of like guaranteeing that high-flow catalytic converters will pass all emissions tests.

 

why do people use this forum without learning the search button?

 

exactly.

Love my UTR Resonated Test pipes.

 

Dude, it's called due diligence and you didn't do it. UR wouldn't make false claims (or would they?) and this forum is full of posts regarding CEL's and TP's. Cat's are on there for a reason (we all need to breath) and if it's a daily driver you should keep the cat's. Go HFC's but go cat's. UR HFC's will not throw a CEL (I know 'cause I have them on a 06 Z) and they will sound nice and keep emissions under control.

Not to rub it in but, they're called test pipes for a reason and this was an expensive test.

 

Check Ultimate Racing's website. Test pipes are a fancy word for plain old straight pipes and $200 bucks is not that expensive for a test. I have read the posts on high flow cats and test pipes so I wasn't looking for knowledge on this one. I only posted this to help anyone else out who may be looking to buy the same pipes I did and expect the advertising to match the result. But they do sound great.