new member here, ? about magnaflow
#1
06-10-2009 | 04:35 PM
Thread Starter
Joined: Jun 2009
Posts: 7
new member here, ? about magnaflow
well tomorrow I'm having the local muffler shop weld up a magnaflow to all the stock pipeing on my 96. Well when I noteiced that they dont make a 2.5 in 2.25 out I called him. I was going to suggest a 2.5inch tailpipe when he said that he would just order the 2.25 muffler, shrink the end of pipe coming from the cat and weld it up. my question is will there be any noteicable difference between this setup and a 2.5 all the way through? I know its only a quater inch but just curious.
#2
06-10-2009 | 05:25 PM
BF Guru
Joined: Dec 2006
Posts: 6,594
From: Fort Worth,Texas
You will notice a difference only if you want to. In other words, no.
#3
06-10-2009 | 06:12 PM
Thread Starter
Joined: Jun 2009
Posts: 7
thats about what I figured. Thanks for the fast response and I'm loving the information on this forum, I've just about been through every page in performance. I'm thinking about a wait4me tune, some pullieys, and an airaid cai next.
#4
06-10-2009 | 08:31 PM
BF Guru
Joined: Dec 2006
Posts: 6,594
From: Fort Worth,Texas
If you're referring to underdrive pulleys, I would pass on them for general daily driving.
#5
06-11-2009 | 09:43 AM
Starting Member
Joined: Feb 2009
Posts: 153
From: Silver Spring, MD
why would you pass on one for a daily driver?
#6
06-11-2009 | 10:05 AM
BF Guru
Joined: Dec 2006
Posts: 6,594
From: Fort Worth,Texas
In a nutshell, here's a paragraph from Wikipedia:
Be careful if your car is driven on the street to not have more than 15-20% underdrive. Some companies also offer stock diameter crankshaft and accessory pulleys. Poorly designed cheap pulleys or copies and knock-offs of major brands can have severe side effects because of too much underdrive of the alternator, power steering, and/or air conditioning units, which are not spinning fast enough. These lead to dips in alternator voltage, power assist, and air conditioning effectiveness may be noticeable, especially at idle. The headlights may dim when coming to a stop, or the stereo may lower in volume, for instance. Too much underdrive for a race car, this is not of concern, but for a daily driven vehicle it can be a major annoyance.
It's your call.
Be careful if your car is driven on the street to not have more than 15-20% underdrive. Some companies also offer stock diameter crankshaft and accessory pulleys. Poorly designed cheap pulleys or copies and knock-offs of major brands can have severe side effects because of too much underdrive of the alternator, power steering, and/or air conditioning units, which are not spinning fast enough. These lead to dips in alternator voltage, power assist, and air conditioning effectiveness may be noticeable, especially at idle. The headlights may dim when coming to a stop, or the stereo may lower in volume, for instance. Too much underdrive for a race car, this is not of concern, but for a daily driven vehicle it can be a major annoyance.
It's your call.
#7
06-11-2009 | 10:35 AM
BF Veteran
Joined: May 2009
Posts: 4,772
From: Halifax, NS, Canada
Welcome to the forum!
#8
06-11-2009 | 03:31 PM
Thread Starter
Joined: Jun 2009
Posts: 7
thanks guys! I got the muffler put on today along with the high flo cat and love it. It sounds perfect crusing at 45 and 50. well I have kicker subs and amp so the pullieys may not be a good idea for me. I'll prolly just go with the air aid cai and tune. later on mabey headers and cam.
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