High Flow Cat ... Solo vs Autowerks - Page 2 - Pontiac Solstice Forum
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post #16 of 17 (permalink) Old 12-06-2012, 01:05 PM
lil goat's Avatar
Join Date: Nov 2005
Location: Objects in mirror will soon disappear!
Posts: 4,811
If you are looking for horsepower gains you will gain little from the high flow cat, either one. They do sound better, even the straight downpipe with no cat has only small gains, I have had and dyno'd them. The factory exhaust is a very good one just too quiet, it makes plenty of power with a good tune, factory cat is also not that restrictive, I am actually putting mine back on to replace my downpipe. Do whatever changes you like have the car retuned. The intercooler makes a huge difference, it means your car won't heatsoak and will continue to perform after it gets hot (like when you drive it). On the dyno one run and the factory IC was heatsoaked. You guys can bench race all you want dyno's are a tuning TOOL, they don't mean squat.

Solo Mach and No Cat custom A/R cone
Dejon Intercooler, Intake Elbow, BOV spring
Wester's Garage tune
RMR Style Bar.
SSR Type C wheels, Nitto 555's
DDM Works PINK Breastplate, PRO Beam
HKS Coilovers
GXP Z0K rear sway bar with urethane bushings
Custom Jonymac glass wind screen, one of a kind.
Eclipse AVN726e; ZED Audio Leviathan, Image Dynamics tweeters, CTS door subs, active crossover tri-amped. Audio Control 6 channel 30 band parametric EQ.
JL Audio 10" sub
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post #17 of 17 (permalink) Old 12-09-2012, 08:38 PM
shreve1's Avatar
Join Date: Feb 2009
Location: Shreveport,Louisiana
Posts: 731
Just installed my Performance Auto Hi flow cat yesterday. Works like a charm.

8" kicker sub with Pioneer Amp + Components
Saturn Sky Door panel Swap
DC Sports strut bar
Drilled and Slotted Rotors
Werks cooler
Werks HI Flow cat
Trifeca Tune
Sprint Booster Adjustable
DDMWorks Trunk & Hood Led Lights
DDMWorks Coated Valve Cover
DDMWorks Oil Catch Can
DDMWorks Coil Cover
DDMWorks Tubes
DDMWorks Inline fuel
K&N C.A.I.
Custom backup camera install
Kazera KZ-D Wheels
Falken 612+
Spoiler from The spoiler company
Plus to much else to list.
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