Quote:
Originally Posted by john370z
Hi all! Just had installed the Berk HFC and the Stillen cat-back exhaust. I have some comments and questions...hopefully the experts here can help me....
I think the install was done right. good cross member clearance, no obvious rattling or leaks...but
|
Well that's good to hear at least
Quote:
|
1.) There is a hiss, like a vacuum valve is opening, around 1800 rpm on the down rev
|
Others have commented on the hiss, myself included. It could just be inherent in the nature of this exhaust, it could be from the Stillen intakes, or it could be an exhaust leak. It's kinda hard to tell. My car is cooling off on ramps right now to fix my exhaust leaks though, so I should be able to eliminate at least one option soon.
Quote:
2.) The exhaust note has a inconsistent very minor clang noise under hard acceleration. I have inspected the install on a lift and cannot see any rubbing to explain the metallically clang. It is difficult to describe but it's maybe 25% of the entire exhaust note. So it is noticeable but not suicide inducing..
3.) It is very loud. If anyone is looking for a little or moderate exhaust noise increase this is probably not for you.
At full throttle it is very nice at high RPM (greater than 5k)
At partial throttle at 3K-6K RPM it sounds like you are hauling a$$ and you are not.
|
Personally I love the nature of the sound. That sound just exudes no-nonsense raw power. When I downshift my engine sounds like a sportbike revving now (well, not quite, but it has that sort of character compared to other cars I've had in the past). If you have a leak, that could be exacerbating any rasp though. Again, shortly I'll get to see how mine is when it's leak-free.
Quote:
|
Question- Are you supposed to use those rubber ballencers (sp) that is bolted on to the stock exhaust?
|
Yes, it's in the instructions, and the Stillen unit has mounting spots for them.
Quote:
|
Are my experiences similar to your other experiences with similar exhaust modifications?
|
The main difference between you and some of the rest of us reporting on this install is that you didn't have any fitment issues clearing the crossmember, which is a good sign that either their change worked and/or the rest of us just screwed up our installs slightly
Quote:
|
Did you disconnect the battery to reset the ECU? How long do you expect the computer to take to make necessary adjustments?
|
I don't think disconnecting the battery really helps much. The car is going to learn your changes regardless, although maybe slightly slower. I don't know how long it really takes, but within a couple hundred miles I think you're pretty gtg.
Quote:
|
I hope I can get used to it and even grow to love it. Many of you have said it is A LOT LOUDER. You are right. Any comments or answers are greatly appreciated. Thanks for listening..
|
You probably will grow to love it, I have anyways. Now my neighbors on the other hand... I think they're plotting to blow up my car