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Do88 intake fitment on the stock 15G

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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Jotunn77
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Year and Model: 97 855t - 91 945t
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Do88 intake fitment on the stock 15G

Post by Jotunn77 »

Used a smoke machine to find multiple vac leaks in my original intake: the turbo inlet and the ptc valve. Ordered a do88 intake to replace the original one. It’s huge and clearly intended for larger turbos, but the instructions assure it will seal up to a stock turbo. It looks like a lot to band clamp down on a 300 part. If the tube creases, I’ll lose my mind. Has anyone installed one of these in the same manner?
1997 855 T5 - 297k
1991 945T - 121k

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ZionXIX
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Post by ZionXIX »

Jotunn77 wrote: 20 Jan 2026, 08:27 Used a smoke machine to find multiple vac leaks in my original intake: the turbo inlet and the ptc valve. Ordered a do88 intake to replace the original one. It’s huge and clearly intended for larger turbos, but the instructions assure it will seal up to a stock turbo. It looks like a lot to band clamp down on a 300 part. If the tube creases, I’ll lose my mind. Has anyone installed one of these in the same manner?
I was very close to ordering that part but I was able to seal my intake tube up with a new rubber mount for the PTC valve. Im curious to see how your turns out. Also you may check on swedespeed or one of the other performance volvo forums to see if anyone has had issues.
Scarlett: 1996 850 Turbo Wagon in Reagent Red Pearl ~210K mi
Norman: 2012 F150 XLT Crew Cab in Oxford White ~110K mi
Ember: 2005 XC90 2.5T FWD in Ruby Red Metallic ~83K mi *Newest addition to the fleet*
Ruby: 1997 850 Turbo Wagon in Reagent Red Pearl - parts car
Rose: 2020 Ram 1500 in Delmonico Red Pearl - SWMBO's Vehicle

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