kenny150r

I own a 1998 GT conv. and I'm thinking about doing some things to the exhaust system. Have exhaust bypass valves/cutoff valves worked well for any of you? Can I simply weld them in after the stock manifold?

Rockwell28

sound like Butt but to each is own!

00gGT

My cuzin has those on his g8 gt man those thins are beast. But that is a bigger engine.

JeremyB

only way to make it sound somewhat good is to get aftermarket headers

Rockwell28

Not just a bigger engine but its a pushrod engine they have a different sound to them.

00gGT

I didn't know that but yea I'm guessing.

Rockwell28

Yea there are quite a few differences between a gm 6.0l pushrod v8 compared to a 4.6l ford v8 and they sound quite different.

pfc_gomez

My bro has cutouts on his Challenger SRT-8 and it sounds beast! I don't know what it would sound like in a mustang though.

oxfordgt

Every set I have ever seen always end up leaking.

If you put them on just for sound then thats fine, a waste of money if you ask me on a stock 98 but fine. Don't try to race with them open cause you will run slower.

I put some on my buddys car (1200rwhp turboed Vette) and used a window switch on them to open them at 4000 rpm. He ran 2 tenths faster then before install. He tried to run them open at launch and ran 3 tenths slower.