which of these is better does
the stillen one have the restriction
like the courtesy one does i have a 99
also what is the price on the two?

 

Stillen = loud (no resonator)

Courtesy = quiet (small resonator), nice build quality

Both make about the same power. Make sure that if you get the Courtesy B-pipe, skip on the extension piece they'll send you. It is way restrictive. Just have a shop fabricate the extension. Check out my site for pics.

Dave

 

if i allready have the hks muffler and i get the B Pipe would that make a full catback exhaust

 

Just goto a custom muffler shop and have them fabricated a 2.5" piping with a resonator. It cost me $125 and it sounds nice with my Apexi N-1 muffler.

 

If the 2.5 pipe is not mandrel bent then your wasting your money. When they bend the pipe it gets smaller around the bend, so whatever the smallest part of the pipe is isall its gonna flow. If not mandrel bent it may even be smaler than 21/4

 

First of all, b-pipe and muffler doesn't really affect hp, at least not on Maximas. We only gain 3-7hp. Y-pipe is the main resistriction. Mandrel bends only make a big difference if you're car is pushing out 300+hp. Otherwise on a NA car, it doesn't really matter. Anyways, custom mandrel bends are very very $$$$.

 

because by just adding my B-pipe, I dropped .2 in et and gained over 2mph in the 1/4 under the same conditions and similiar 60 foots. I noticed a nice gain in torque and upper rpm hp and so did Greg P.

Dave

 

Yes, I will vouch for Dave B's comment. The B-Pipe with a straight extension piece will definitely add low-end. Not by a HUGE margin, mind you, but it is noticeable.

 

OK so i most likely will get the b-pipe
from courtesy and have a straight piece
made i was going to get a greedy but 1.cant see spending that much money
2. i dont want the drone 3. and i sure as heck dont want the huge gopher tip