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PSI Motorsports would like to thank the Houston S550 Mustang group for coming by Sunday to have a dyno day. We dyno’d 31 S550s and saw a lot of great looking rides! Congrats to Aurthur Wilson for the highest power adder 5.0L dyno in his PSI Built Whipple 2015, Chris Rumery for the highest power...

From now until the end of the year, we are offering free installation on Whipple's full kit for any Coyote Ford when purchased from us. This includes 2011-2015 Mustang and 2011-2015 F150. This offer is for Whipple's complete kits with calibration and includes before and after dyno testing and...

We are offering free installation on kits purchased from us during the month of September. This offer applies to full kits using Whipple Calibration. Pricing is based off of Whipple retail pricing plus tax. Call or email us for an exact price. 281-557-2874 or [email protected]