Kyle,
Get with Allen/NP for sure, they'll get your truck running just right
If I recall, the FlashPaq doesn't do torque management, which will be your biggest "seat of the pants" gain when switching to a HPTuners tune. It'll be all around better for sure. If I remember correctly, you've got Pacesetter shorties right now, right? Everyone on here will tell you to ditch them since they don't give much for performance gains over stock manifolds, if any. Instead, you could go with some LT's, people on here have had good luck with the Speed Daddy ones off eBay located here: http://cgi.ebay.com/ebaymotors/1999-...ts_Accessories or if you're wanting to spend a bit more, LPP has a great quality product, they're found here http://lpparts.com/store/page7.html. Cam and stall next! But that's a whole other thread. Point is, a Nelson tune will be the best money you've spend yet guaranteed.
Last edited by bartjo06; 08-25-2010 at 09:19 PM.
2001 GMC Sierra SL ECSB - Project
2012 Honda Civic Si - DD
2009 GMC Sierra SLT ECSB - Sold