It used to be ST, but under the current 2012 rules: STC, although there is pending discussion to move TDi's to STF.
Is it STX, I have a stock TDi jetta wagon with only springs (for looks) trying to test it at autox what class would i be in. thanks
02 GTi 1.8T haldex'd w/35r-SOLD 7.3@102mph 27psi on 93 octane--04 A4 1.8T converted to AWD also- SOLD--'11 JSW Tdi 6speed Manual- Gone--
13' BMW 335i M-sport EBII