aFe ShiftLogic Exhaust Brake Control Module (77-52002) 3510 HW4-XTSS kit features an Xtreme

HW4-XTSS kit features an Xtreme pressure plate for the most demanding driver

Suits: Nexus Series VCU's with internal onboard wideband

Engineered to crawl with best-in-class clearance on even the most aggressive departure angles

featuring 102mm slash-cut tips on each side of the vehicle

and 2005-09 Chevrolet Trailblazer SS (17U-21-0060-8)

aFe ShiftLogic Exhaust Brake Control Module (77-52002) 3510 HW4-XTSS kit features an XtremeShiftLogic Module by aFe. This top of the line product is engineered to ensure excellent driving performance and help your vehicle achieve optimum fuel economy and engine emissions. It is crafted from top grade materials to provide the ultimate in quality and reliable service for years. The aFe POWER ShiftLogic Transmission Module modifies the transmission line pressure, resulting in improved shift firmness and reduced transmission slippage while also