np, glad to help bud!
btw, catless dp referring to "catless downpipes." Removing the catalytic convertor improves exhaust air flow which in turn gives you a noticeable hp gain with along with a proper tune.
To pass emissions you would need what is called a "dp fix" which plugs into the wiring harness. This will help fool the cars computer into thinking everything is business as usual.
Quote:
Originally Posted by jake169
It seems unique and not too obnoxiously loud, just the right amount of sound from what I heard on some of the youtube videos. Although pretty much anyone with an E89 has a race version. I heard the sport version on the 335i which was not too loud.
What is a catless DP,  . I am a newbie when it comes to modding. Hoping to get the right thing done with help from you all.
Also will I pass inspection with a catless DP.
Thanks a lot for all the help.  |