All Products

Fits 2001-2010 2500HD and 3500 series trucks. These joints are extremely prone to failure and should be accompanied by our support kits.

This OE idler assembly includes the frame part as well unlike aftermarket units that are the arm only.

This smooth idler pulley fits 2001-2010 Duramax including LB7, LLY, LBZ, and LMM. Each engine takes two pulleys. Listing is for one piece. Genuine GM/AC Delco parts.

"I find that the bearings are getting pretty dry feeling in the 90,000 mile range. This is a good time to do both idlers, tensioner, and belt. Replace before they fail." -JK

Brand new S&S injector for Duramax LLY. Fits 2004.5-2005 LLY only. Does not fit 2006 model year.

Requires core deposit of $150 per injector which is refundable when cores are received. Cores must be returned within 30 days in the original boxes.

Injector body oring and copper crush washer to install one injector on 2004.5-2010 LLY, LBZ, LMM. Typically supplied with new and reman injectors. Order 8 for a set.

Set of 8 brand new genuine GM/Bosch injectors fits 06-07 LBZ only. Cores must be returned within 30 days in the original boxes or a core fee of $150 per injector will be applied.

Set of 8 genuine GM/Bosch reman injectors fits 06-07 LBZ only. Cores must be returned within 30 days in the original boxes or a core fee of $150 per injector will be applied.

Set of 8 BRAND NEW injectors. Fits 07.5-10 LMM only. Cores must be returned within 30 days in the original boxes or a core fee of $150 per injector will be applied.

Set of 8 genuine GM/Bosch reman injectors fits 07.5-10 LMM only. Cores must be returned within 30 days in the original boxes or a core fee of $150 per injector will be applied.

Requires core return or pay $150 per injector core fee.

Basic tune changes include passlock reset for engine swaps, speedo recalibration, factory updates, and fixing of any Diagnostic Trouble Code issues that were covered by GM factory updates. Also includes ECM recovery from failed tuning attempts and reset to a good clean factory tune.

"This is not a complete tune, only a basic fix and requires the ECM to be sent in to us or a suitable core must be provided. We will not provide a core for this item. It also does not fix 2001 limp mode issues. See Kennedy Custom tuning for this." -JK

Basic tune changes include passlock reset for engine swaps, speedo recalibration, factory updates, and fixing basic Diagnostic Trouble Code issues.

"This is not a complete tune. It does not fix P0087 issues. It is only a basic fix and requires the ECM to be sent in to or us or a suitable core must be provided. We will not provide a core for this item." -JK

Basic tune changes include passlock reset for engine swaps, speedo recalibration, factory updates, and fixing basic Diagnostic Trouble Code issues.

"This is not a complete tune, only a basic fix and requires the ECM to be sent in to us or a suitable core must be provided. We will not provide a core for this item." -JK

Dual mode switchable tuning allows you to have your choice of two tunes available at all times! Tunes available to produce anywhere from 40HP economy to 250+HP Race. Includes DSP2 switch.

"This item requires an exchange ECM or we can provide one for an additional charge. See listings below." - JK

Race Tune Dyno Plot

When comparing dyno numbers, please note that my dyno plots do NOT use correction factors. These are no BS dyno runs with no inflation to make sales. -JK

Tunes available to produce up to 150-200RWHP gains while still remaining tame enough to act as a daily driver. Smooth shifting, lower EGT's, and more power/response than many higher claimed generic tunes.

Installation Instructions

Dual mode switchable tuning allows you to have your choice of two tunes available at all times! Tunes available to produce anywhere from 40HP economy to 200 RWHP. DSP2 switch included with purchase.

"This item requires your ECM be sent in OR exchange ECM can be provided." - JK

Dyno Plot

Race Dyno Plot

When comparing dyno numbers, please note that my dyno plots do NOT use correction factors. These are no BS dyno runs with no inflation to make sales. -JK