I have a 2000 Silverado it is an extended cab 4x4 and I use it to tow my Jeep. It has the 5.3 with an automatic and I am looking for ways to increase the performance. Looking at a Gibson cat back , K&N fipk kit and possible a new hypertech chip. Has any one here got any first hand experiance with these? Are they a waste of time? Need to know what works.

thanks

Michael

Gibson and K&N are very nice products.....I highly recommend them:D