I've had a K&N setup on my 97 5.2 Dakota for over 260,000 miles and have never had any problems with the MAP or TB or anything else. Get around 20mpg hwy. and 16 city. The biggest gain is with a smooth tube versa a rippled one.
72 Satellite Sebring Plus 440, 72 Dart 5.9 4-spd, 68 Valiant, 73 W200, 78 D100 sb, 78 D200, 98 DAKOTA, . Moparmarks Parts & Restorations Desert Mopar Metal Grand Jct. CO 970-261-7039 http://moparmark.com/ motormangj@gmail.com