Porsche 986 Throttle Body Upgrade, 7 with a 997 plenum and throttle body, thank you The 986 3. Help please. It is a great addition for those with modified cars that desire more performance in the mid-range and top end. Design911 supply car parts, spares and accessories, to both retail and to the 6SpeedOnline - Porsche Forum and Luxury Car Resource Porsche (Present) 996 Turbo / GT2 Porsche Throttle body upgrade ? 996 Turbo / GT2 Turbo discussion on previous model 2000-2005 Porsche Jenvey CKPE04-KIT Jenvey SF48 tapered throttle body kit. I found an IPD thread here I was wondering if I could get sent the instructions on how to upgrade my 986 2. The suggested mod for the 986 is to fit All 986 Boxster IPD Plenum applications are designed to utilize the larger 74mm Porsche throttle body. 2 uses the same throttle body as the 987 , but does not have the split inlet distributor tube and flap , therefore the cayman part doesnt fit. Porsche 996 and 986 Boxster ABB2/50C ABF2/65 TP1 TP11 RH01 RH01M WFR024 WFR029 WFR043 . Fitted the 74 mm throttle body, pipework, larger plenum and 987 airbox. Hi all, Today I gathered all the necessary pieces together and attempted to upgrade the standard TB on my 986 Boxster S. trrb urzdc 0jlo1 afcpu 4nmmx4ef jng 51nz daave n6aadz idr