fiftyfordfloored
Explorer Super Upper
- Joined
- January 27, 2007
- Messages
- 207
- Reaction score
- 5
- City, State
- Alpha, NJ
- Year, Model & Trim Level
- 2005 Explorer 4x4 Limited
On my 1994 Ranger 4.0L, the exhaust was wasted, so I'm redoing the whole thing. I'm putting Pacesetter headers and y-pipe on, a Magnaflow cat, and I'm debating on the cat back portion of the exhaust. I know Dynomax has a kit that's 2.25" inch pipe, but the intermediate pipe going from the converter to the muffler they say to use the factory piece, which is 2". Seems to defy logic to shrink from 2.5" to 2" and then enlarge the pipe to 2.25" again, as the outlet of the converter is 2.5". Looks like Gibson makes one that's 2.5" all the way back, but I'm concerned with loosing too much back pressure. Any thoughts?
I should ad, I'm not looking for all out performance, but rather a bit of performance but mostly the fuel economy boost. I used this setup on my Explorer and it made a huge difference (17 mpg up to 20-21 mpg highway), but IIRC the Dynomax I used on the Explorer was 2.25" from the converter all the way back.
I should ad, I'm not looking for all out performance, but rather a bit of performance but mostly the fuel economy boost. I used this setup on my Explorer and it made a huge difference (17 mpg up to 20-21 mpg highway), but IIRC the Dynomax I used on the Explorer was 2.25" from the converter all the way back.