Hes just an indy mechanic. He races sprint cars which makes him which makes him a firm believer that forged pistons are the only way to go(850hp, you know). But he has worked on Saabs/ Volvos for a long time. I have heard a number of horror stories about Viggens cracking pistons. The 99s were different than 00-02(im sure you know) but I dont want to blow up the motor. The t7 2.3 has Mahle pistons? If you really think this is a waste of $ let me know. From my research(forums) I thought this was needed past stg 3.
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