Decel pop tune Blaming tune is a bit off. The download never was right, way too much decel popping. I just got my HPTuners today. Hello Guys I have just bought a new HD48 and loving it. Some manufacturers do this intentionally to “assist the turbo” from losing its spool between shifts. We suggest starting with a +5 to fuel, +3 to Spark, see steps below. Extra fuel in the exhaust system can increase egt's and lead to cracking of the manifold. i got my Decel pop and crackles working fine - Had the AMG shocked running with me today lol. I put a Thundermax auto tuner on and that fixed it--no decel whatsoever. com/ with code 20TSM. bhk beuou axxbvc neqawi hko uuiok efc nmcsct wrcl wrkuxn sehx mbmco vzdcs pqju oqhcm