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- Jul 31, 2011
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after some well read reviews im getting excited to inquire a tune from you guys i have a few question tho regarding my vehicle
some info; 1998 gmc yukon 4x4 slt -stock 5.7 liter engine with a drop in K&N airfilter
1.first is the major ? is i plan to regear from my stock setup to 4.11 or4.56 gears and add shorty headers with a aftermarket MAF should i wait till after this is done for a tune or before or is this somthing i can just flash real quick after said mods?
some info; 1998 gmc yukon 4x4 slt -stock 5.7 liter engine with a drop in K&N airfilter
1.first is the major ? is i plan to regear from my stock setup to 4.11 or4.56 gears and add shorty headers with a aftermarket MAF should i wait till after this is done for a tune or before or is this somthing i can just flash real quick after said mods?