SPA TURBO Forged piston and rings set 83.5mm VW 2.5L Jetta MK5 07k + T3 High Performance Turbo Exhaust Manifold

SPA TURBO Forged piston and rings set 83.5mm VW 2.5L Jetta MK5 07k + T3 High Performance Turbo Exhaust Manifold

Marsoni

M251S

$549.95

Get it in 3 business days with 1 day shipping. Friday, May 29

SPA TURBO Forged piston and rings set 83.5mm VW 2.5L Jetta MK5 07k + T3 High Performance Turbo Exhaust ManifoldForged piston and rings set 83. 5mm VW 2. 5L Jetta MK5 For VW 2. 5L Jetta MK5 Nominal bore diameter: 83. 5mm Recommended bore to piston to bore clearance: 0. 08mm (For nitrous or extreme applications, consult your builder) Piston ring grooves: 1. 5 mm 1. 5 mm 2. 0mm Compression height: 29. 3mm. Dish volume: 12. 7cc Pin offset: 1. 10mm. Material: Forged aluminum 4032 T6. Average piston weight (unit, without pin): 329g (11. 60 oz). Rated for 1000hp.

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The Good: Changing the fluid in the lower unit is a very easy DIY job. This can save you hundreds of dollars each year by doing it yourself. The Bad: You need a special pump to change the oil, and sometimes it comes with the gear lube. Unfortunately this product did not come with it. Luckily my neighbor had an extra one from changing the lube a different boat laying around and was able to use that. The Ugly: If you have to go get the pump, that could cost a few extra dollar but is just an extra nuisance. The pumps are interchangable but you just need to clean it between uses (DON'T MIX DIFFERENT OIL BRANDS)

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Reviewed in the United States on October 28, 2025

Verified Purchase

Joe H.

Belleville, US

★★★★★ 5

Works fine in outdrive

Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube

Good gear oil. Purple dye for leak detection

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Reviewed in the United States on April 2, 2026

Verified Purchase