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02-07 Subaru WRX & STI GrimmSpeed Uppipe

The GrimmSpeed catless uppipe is made of 304 SS (all of it; the flanges, flex section and tubing) and has super thick, 14-gauge pipe-wall thickness, which is the most heavy-duty pipe you will find for this kind of application. Other pipes use cheaper, thinner steel and are marketed as "super light weight," not GrimmSpeed's. Also, their one-of-a-kind, Triple Layer Flex Joint is not located in the bend, which increases the life expectancy of the flex section. The inlet size is 1.92" and the pipe tapers down to 1.72", which acts as a funnel as it moves into the turbo allowing for increased air velocity. The GrimmSpeed Uppipe outlet size is a perfect match to the most common stock location turbos allowing for a smooth transition into the turbo. Because GrimmSpeed is a porting company they make sure to have the smoothest transitions possible between pipes to allow for maximum flow and quickest spool up (they call this "quality airflow"). Ceramic coating is available and is a great way to lower engine bay temps and increase velocity of the exhaust gas, resulting in even more power! 02-05 WRX models have a pre-turbo catalyst, making this uppipe a major performance improvement. Though the 06-07 WRX and 04-07 STI do not have a cat in the factory uppipe, this product will still improve throttle response and drivability. This product does not include the stock EGT bung.

  • Note:
  • This product does not include an EGT bung.
  • Subaru STI 2004-2007
  • Subaru WRX 2002-2007
Description Part # MSRP Price Inventory  
Uppipe, uncoated 003001 $237.81 $206.79 5 available
Uppipe, Black Ceramic Coated 003002 $268.17 $233.19 5 available
44mm Block-Off Plate 008008 $66.78 $58.07 5 available
Uppipe, Blue Ceramic Coated 003003 $247.92 $215.58 Usually ships in 2-3 weeks
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