2nd Gen Non-Engine/Transmission Exhaust repolacement

[mfburns]

Its getting time to replace my muffler and tailpipe. I would like to get recommendations. Its a pretty stock truck and I would like to get better mileage. I have an auto transmission and do some light towing, 18' boat. I am looking at 4" systems. Any data on increased mileage would be appreciated.

 

[Mark Craig]

MFBurns,



Have had a lot of folks want MPG improvements with exhaust but the gains are really pretty small for it with exhaust alone. You'll drop EGT's , decrease spool up time, increase hp and torque etc, but MPG won't be a large change.



Mark Craig

 

[Fuzzy Bear]

I installed one of Rip Rook's 4" systems a couple weeks ago. I am very impressed. The sound is good. In the cab, at idle not much different than stock. Under load a nice throaty rumble. Mileage is a little better, but I attribute that to less right foot. The turbo is spooling up a lot quicker, so I believe the extra boost is giving me the same performance with less throttle. Definitely worth the $.