Off-road Catless X Pipe With Muffle Delete Kit

[Robby Tremblay]

i have a 1998 mustang Gt I just brought a off-road catless xpipe and my buddy gave me a brand new muffle delete kit , I'm just trying to see if anyone runs that setup and how does it sound

 

[Mustang5L5]

It will sound badass....but you will make your car slower due to slightly shifting the torque curve higher up in the RPM range. For a street car, you want the torque down low...and the 4.6L SOHC lacks this.

If you go catless, I'd at least keep some sort of muffler on there


I've seen plenty of peers go from mid-14's to mid 15's while sounding like the world was coming to an end.

 

[Nemethjames1]

I have ran a couple of my mustangs with no mufflers (straight pipes) and when I was a kid I thought it sounded cool. But really it just sounded like crap, cruising around speeds sounded like garbage. Idle was loud and not a good loud and wide open throttle was the only time it sounded ok. But no back pressure is a big notice in low end torque GONE.

When I cut my cats off and welded pipe in place I noticed low end torque lost but gained power up top. But off road mid pipes sound much better.