Exhaust question

[nickgodwin1]

I have a 1984 CJ7 with the AMC 258 i6 / 4.2l I6. I have an exhaust leak where the down pipe bolts to the manifold. The whole system is pretty rusty so my exhause guy is just going to build a new one. My questions are... Can I buy a down pipe for the 76-78 CJ7 ? I think the only difference is its longer under the jeep and i didnt plan on running a cat anyway so was wondering if it would work? Also what mufflers sound good with the six cyl? I ran a dynomax bullet on my last truck and loved it but this is my first 6 cyl and was wondering what yalls input on sound was... thanks guys!

 

[dalefan88]

i have a flowtech raptor on my AMC 258 i6 / 4.2l . i love it. it rumbles at idle. loud when you get on it then at about 45 mph it is quit. the best part is i got it at work and they run about 25 to 30 dollars.

 

[nickgodwin1]

Whats the size on our exhaust? 2"?

 

[BrockGrimes]

I had a 3" and ran a CherryBomb with it right under the driver seat after the cherrybomb I had it turn down toward the ground. Sounded great no droning, obnoxious, or ricey. Had a nice deep note and was fairly quiet at 80mph.

 

[Cheepjeep85]

i don't think you can use the older downpipe the mounting flange is different, and my vote is for a 2 chamber flowmaster, 3 chamber if you like em a little quieter

 

[nickgodwin1]

Thanks man. What diameter size would get my exhaust guy the closest? 2"? 2 1/4"

 

[Cheepjeep85]

good question i'd have to measure it which i can't do right now i ain't close to the jeep, your exhaust guy should be able to make you a new downpipe he'd have to flare the end to match the exhaust mnifold but that shouldn't be a problem