Does anyone have an exhaust sound clip running an oem exhaust with just a test pipe or test pipe and jpipe combo? Also wondering if anyone is running the atlp high flow cat and how it affects sound and power.

 

I don't have a sound clip, but I did have a jpipe and test pipe combo for a while. The j pipe adds a little growl that only you will notice and in my opinion the test pipe won't do anything. I ended up taking it off to remain street legal. Now I have the jpipe and atlp cat back exhaust.

 

Thanks for your feedback but I would have to disagree with you about gains, removing a catylaic converter for a straightpipe should definitely produce gains with the tl.

 

https://acurazine.com/forums/4g-tl-performance-parts-modifications-295/test-pipe-question-838632/

Heres a link with what other people have had to say about the test pipe. I was just going off of personal experience. didnt dyno the car so can say much about gains or lack of...