If you're interested in how other modded Stingers perform in the 0-60 realm here's a list of the top 15 quickest on the forum.
Seems your car is doing about what it should be with minimal modding.
1. 3.65 seconds, 177.35 feet, -.92% slope
@Tonkabob,
GT2 AWD, Tork ECU tune, Ark catback, JT
intake, Ultimate FMIC, SSR Midpipe, 23 lb wheels. E15 94 octane
2. 3.79 seconds, 188.58 feet, -.87 slope
@ScottyCole
AWD, Lap3 Pro, K&N
Intakes, UP HFC down/mid, Borla Catback, 93 octane
3. 3.94 seconds, 194.68 feet, +.40% slope
@Get Stung
AWD,
JB4 Map3, Secondary CAT bypass, Borla catback, 93 octane
4. 4.04 seconds, 201.83 feet, -.49% slope
@KLR STINGER
AWD,
JB4 map2, Intakes, Velossa
snorkels, Magnaflow Catback, JT FMIC, Lap3 primary dp, JunBl Mid (no cats),
Magnaflow Catback
5. 4.06 seconds, 193.21 feet, -.17 slope,
@Terry@BMS
GT RWD,
JB4, BMS
intake, Water/Methanol injection 50/50, Drag radials, wheels.
6. 4.08 seconds, 194.66 feet, 0% slope,
@STINGER
RWD, JB4 map 3, WMI, VT
Snorkel, K&N Drop ins, NGT primary, JunBL mid (no cats) EVC cat back
7. 4.16 seconds, 206.39 feet, -.16 slope
@Stormlasher
AWD, Lap3 Pro, intakes, UP primary and secondary, catback
8. 4.18 seconds, 205.29 feet, +.64% slope,
@Blitz
AWD, 92 Octane,
JB4 Map2, Agency Power
Intakes, SSR DP
9. 4.19 seconds, 201.95 feet, -.49% slope.
@Adamdan
AWD
jb4 map 3, jun mid pipes-evc catback, k&n panel filters, 91 octane with some E85.
10. 4.20* seconds (*
escort G force, unknown distance and slope)
@eflyguy
AWD, Presseretech ECU tune, 93 octane
11. 4.27 seconds, 212.10 feet, -.46% slope
@HARRY
AWD, JB4 map3, borla catback, NGM intake
12. 4.29 seconds, 204.35 feet, +.16%
@Whiteybird
RWD, JB4, WMI, SSR mids, JT CAI, DRs
13. 4.31 seconds, 203.13 feet. 0% slope
@ryan1stinger
RWD, RaceChip, and Tork Intake
14. 4.40 seconds, 211.80, -.93%
@Matt77
RWD, catback, secondary dp
15. 4.48 seconds, 215.45 feet, +.46 slope, @ D-C
RWD JB4 map 5, Ark cat back, 30% E85
And some times from an older list.
4.63 Seconds, 216ft, +.615 slope,
@DaBears4Lyfe
Intake, dump valves
4.64 seconds, 223.29 feet, +.29 slope,
@washguy"Wash"
RWD,
JB4, K&N Drop ins
4.83 seconds, 237.52 feet, +.83 slope, @Ahawk
Stock
4.91 seconds, 73.01 M (239.53 feet), +2.19 slope, @Danel Egan
RWD stock
4.96 seconds 247.63 feet, -.4 slope,
@friss
GT2 AWD, Big mouth, K&N drop in