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04-07 STI Perrin Rear Differential Cover

The rear differential is a expensive part to replace, so it is important to keep differential oil temperatures cool for a prolonged life. Under harsh conditions like autocross or track racing, your differential fluids heat up and start to break down. The Perrin STI Rear Differential Cover is designed to keep these fluids at a safe temperature with enlarged cooling fins to dissipate heat. It is constructed of heat-treated cast aluminum, and will hold 30% more oil than your stock rear differential cover. The Perrin STI Rear Differential Cover is a great upgrade for the weekend racer, and anyone looking to add some style to their STI.

  • Note:
  • This item is now only available in Wrinkle Black color.
  • Subaru STI 2004-2007
Description Part # MSRP Price Inventory  
Wrinkle Black PSP-SUS-510BK $354.65 $319.50 1 available
Mon-Fri 8am-8pm
© 2015 JSC Speed Inc.  All Rights Reserved.
1635 Bustleton Pike, Suite B, Feasterville, PA 19053
Tel: 215.489.2820
Mon-Fri 8am-8pm

©2015 JSC Speed Inc.
All Rights Reserved.

1635 Bustleton Pike,
Suite B
Feasterville, PA

Tel: 215.489.2820