bcmaxx
NAXJA Forum User
- Location
- The West Kootenays,B.C. Canada
Can anyone tell me if anyone makes a front exhaust pipe without that stupid crush relief in it?
Its a 89 xj 4.0
thanks all
Its a 89 xj 4.0
thanks all
The replacement one I got from Advance auto didn't have one. I would guess all of the aftermarket ones don't, but I have no idea.
Is that the ONLY reason for that relief? Has any one seen changes in idle or power after ditching the OE setup? I just wonder why Jeep didn't route it differently instead.
I wouldn't go bigger than 2.5 on that downpipe, and just curious why the 3" cat? The less restrictive the exhaust is the bigger the potential for higher horsepower, but that comes at the expense of torque. You need a certain amount of backpressure from the exhaust to build the torque that makes the 4.0 such a good low rpm torque monster.