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Storefront >> Exhaust Systems/Headers >> Random Technology 3" Downpipe/Hi-Flow Cat

Random Technology 3" Downpipe/Hi-Flow Cat Price: $460.99
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- 1997-2003 Grand Prix
- 2004-current Grand Prix
- 1997-2004 Regal GS
- 2000-2005 Monte Carlo
- 2000-2005 Impala

Improved Design! Random Technology has recently revised their Downpipe/Hi-Flow Cat with many improvements:
- Improved internals of the catalytic converter means no more worrying about a possible SES light going off
- An increased flow of 90 cfm over the first-gen cat.
- Better fitment to your stock flanges for a tighter seal

Random Technology now provides a solution to the restrictive factory downpipe and U-Bend on the GT/GTP/GS exhaust. Made out of high-quality Stainless Steel construction and Mandrel Bend fabrication techniques offer you the ULTIMATE in minimizing your factory exhaust restriction. R.T. data shows a 47%(393cfm vs. 267cfm) INCREASE in exhaust flow compared to the factory system(downpipe, cat, and U-bend). This Bolt-On system is available with either a 2.5" OR 3" pipe after the Hi-Flow Cat - O2 bung included.

Dyno results show an impressive 8HP TO THE WHEELS INCREASE across the ENTIRE RPM BAND when compared with the Factory stock Downpipe, CAT, U-Bend!! Click here to open a new window of a dyno graph on a stock GTP before and after the R.T. downpipe is installed.

We also offer R.T.'s Installation Kit in both 2.5" and 3.0" outlet sizes, which adds the heavy-duty flange gasket and necessary hardware to complete your install of the downpipe/cat.

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Select Outlet Size after the CAT

Add an Installation Kit


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