I was a little too aggressive last year with modifications so I decided to slow it down a bit.A few months ago, I installed a B&M automatic transmission Super Cooler and an Earl's Temp-A-Cure engine oil cooler to help prolong the lifespan of the transmission and engine, respectively. I also installed a Greddy electronic fuel pressure gauge to monitor the fuel pressure because the fuel regulator went bad last summer. The service advisor at Hendrick's Toyota in Fayetteville, S.C. (where I happened to break down while traveling back to Florida from the Turbokits.com headquarters in Windsor Locks, CT) charged me over $400 to replace the fuel pump, and didn't bother to test the fuel regulator. The car didn't run after the fuel pump was replaced so she told me the problems were caused by the turbo system. I took it to All Pro Automotive in Longwood, FL where the regulator was replaced and the car was up and running again. I spent three days and two nights in Fayetteville at a hotel while my car was being "diagnosed" and "repaired". When it didn't run after the fuel pump was replaced, I had to take a one-way flight back home to Sanford, FL and then return with a pick-up truck and a U-Haul auto transport to tow the car back home. $2000 later, problem solved (that's the other reason I had to take a break from this car).