DooMer_MP3 said:
What does the magnaflow have as far as a resonator or secondary cat? If I get a header, I don't want to be a straight pipe. SpicyMchaggis already said it sounds horrible. Is there a resonator? Or a cat? Or both?
Also, people complained about surface rust with the magnaflow. Has it been an issue yet? You've only had it for a short time though...
Chris
Chris, Matt, Scorch, et al--
P5 is running Injen CIA, Magnaflow CB and EssentialSPEED shorty header to maintain both cats (Colorado is an emissions test state), although I might be able to dump cat #1 and run #2 only. Something for futurethink.
With the setup above, the engine cranks 105 ponies with 115 lbs/ft of twist. That's it, but those are dynoed, not "probably" numbers. Scorch and I had the same basic mods before we installed different headers and our dyno #s were slightly different, but this can be expected with different dynos, even of the same manufacture. Dynos can and do vary slightly, and that's why it's important to always use the same dyno when pulling runs. Otherwise, you're doing a little apples to oranges stuff.
I went with the ES shorty for reasons stated above, but may put this header on wife's '03 ES, which also has Injen/Magnaflow combo, and move to a 4-2-1. The reason Scorch gained as much WHP as he did is the AWR header design. You'll note the gain in torque is less than half the kick in HP. What we all want is a nice 7-8 WHP gain with an added 8-10 lbs/ft of twist. HPs great, but torque is what makes the wheels go 'round.
BTW, Chris, the Magnaflow CB is a deep mellow purr, absolutely non-rice, even with the header. In fact, the header took the slightly annoying resonance out of the system at cruising speeds--3500-4200 rpm or 70-80+ mph. Once again, though, that's a "bundle of snakes" shorty header, not a direct drop 4/1 as is the AWR, Wagner, Forza, etc.
I, too, wanna see 130+ WHP, but with that, I also want to see 140-150 lbs/ft of urge--at
least. Not sure that's possible with current mods I'm looking at.
I still have an ES TB to install, hopefully this weekend, to see what a 17% increase in throat area does for thinner air here at 5280 feet. Maybe zilch with stock EMS. I do know that a minor change in carb mains in my Alfa 2.0L makes an immediate difference in driveability and performance. But then, I don't have to try to outwit a computer chip.
My $.02 worth...