Speedyejl

They must be smoking heavy amounts of crack.

CrazyAl

I do not belive the gain of ANY hp from a catback install.

I have had my overaxle pipes off when I installed my Borla catback...and the OEM pipes are already very good quality, mandrel bent. There is one very small "crimp" on the OEM passenger's side overaxle pipe for body clearance, and the aftermarket catbacks fix this. However, I cannot see this one tiny "dent" having ANY effect on HP, let alone as much as they are claiming.

I'm willing to bet that their graph is either an outright lie, or it is actually a comparison of stock vs. Magnaflow + tune, in which case the TUNE is where the power is coming from, and the gains would be exactly the same regardless of whose catback you put on there. I have seen several brands of axleback and the Borla catback on the dyno, and they all have the same performance...zero HP gain.

ezio350

Yeah, thats what I'm thinking. Magnaflow said is that they will not make an exhaust system unless they gain some power. If there are no gains, they dont make it. Maybe they got .19hp and .20lbs of torque. haaaaaaaaaaaahaaaaaaaaaaa

probinator

ask if u can get a refund or how they did there dyno.

JibStyle

i'm about to install the 2.5" magnapacks catback this weekend, but i'm not expecting any more HP lol, just sound. do any catbacks add hp? even 1 or 2 hp?

Arwing

No way.

[sm=bs.gif]

AmericanMuscle4.6GT

whatever the folks at magnaflow are smoking, i sure would like some, because it would seem to be very very powerful ****.