I searched through past posts and could not find an answer to my question. Anyone using the MBRP Cat-Back exhaust on a CRD. I am curious as to the noise level inside the vehicle, drone at highway cruising speeds? I previously installed one of their systems on my '02 Ram Cummins and while it fit and performed great, I found the drone at highway speeds a bit much and installed a second resonator (from MBRP) to tame the drone. I don't believe a second resonator would be an option on the CRD due to space limitations. Any experience with the MBRP on a CRD KJ out there?

_________________
2006 KJ Sport CRD, 2006 KJ LTD CRD, 2013 Subaru BRZ 6spd., 1994 Ford F150 XLT, 1969 Dodge Charger R/T 4spd. (Yes it's a Hemi).

Cannot speak as to the MBRP system, but:
I have a Flowmaster 942542 Series 40 Delta Flow, 2.50 Center In / 2.50 Offset Out muffler installed with NO CAT and still using OEM tailpipe from muffler to rear exit and get absolutely no drone at any speed. Never even hear it with windows rolled up and AC and / or radio on!
Replaced CAT and choke point with straight piece of exhaust tubing.
Total cost with labor by a local exhaust shop to install was around $150.00 ( I supplied the muffler from local parts store)

_________________
Supporting Vendor and Moderator of LOST
05 Jeep Liberty CRD Limited
Ironman Springs/Bilstein/Shocks
Yeti StgIV Hot Tune
Week's BatteryTray
No FCV/EGR
Samcos/ProVent
SunCoast/Transgo
Carter Intank-pmp
2mic.Sec.Fuel Filter
Flowmaster/NO CAT
V6Airbox/noVH
GM11 Bld.fan/HDClutch
IronrockArms/wwdieselMount
98 Dodge Cummins 24 Valve

Just a reminder to save the CAT if you elect to have it removed. If you sell in the future it may be to someone where vehicle inspections look for a CAT. Some say you can just gut the CAT and leave it in place so it's visually there but no functional. Just saying.

_________________
Sold to LOST member my 05 Ltd, GDE Stg II turbo + TCM tune, SunCoast TC w. Transgo kit, Steiger window regulators, Samcos, Fumoto valve, 2nd gen filter head with Lub. Spec. bleeder, Hayden clutch & 11 blade fan, inverted spare, P-1 battery, BF Goodrich Long Trail TAs, Etecno1 glow plugs, timing belt at 50K miles/8 yrs

The problem I had with that, is both the Cat and the muffler, as well as the spring-ball coupler between them have sections fore and aft, that are necked down to 2" OD (1 7/8" ID). To rid the system of all of these requires removing all from in front of the Cat to the rear of the muffler. (The flex-section just after the downpipe isn't reduced, and helps reduce noise and vibration.)
I used the flowmaster linked in my sig, and tucked it up just behind the rear crossmember. Like WWDiesel, I used the factory exhaust from there through the tailpipe.

_________________
'06 Lbrty Sprt CRD 150K

Sasquatch
DSS Turbo
CAT-elimntr
Weeks Stg1&2 EGRfix
PV-200
BLING
vent gauges

IDParts
head
cams
rockers
Timing set
ARP studs
eTn1 GX2123 5v GPs

YETI Custom Tune
Flowmaster 8325508
Carter P76611M
GM 12611872
Hayden 2986
GM 15976889
PATC Custom Billet
2010 Ram Hemi Trans
Sonnax 44957
Transgo kit
Cooper 51770

Just cut it all off

_________________
U.S. Army Retired