Hey guys, my name is David, i just signed up on the forums. I have a long history with srt4s as this one is my 3rd lol. This is the car that ive spent the most time and money on. The question for u guys is i recently got tuned with hp tuners at D3 Performance in Houston, Tx. The car made 330/330 trq and the tuner said he just cannot squeeze anymore out of the turbo because it has a .48 exhaust housing. We are at about 24 psi of boost with plenty of fuel left.Should I just upgrade to a .63 housing?? or Bigger Bigger Turbo lol?? The car pulls hard in 2nd but in third and 4th it lacks power. Here is the list of mods on the car...Sorry I just copied and pasted... 2004 Srt
Engine/ Transmission
- Borg Warner s251sx turbo .48 housing 51mm extended tip technology. 3in inlet and 2in outlet. (47lb flow rate)--- 621.42
- TMZ/South Bend Clutch Heavy Duty Stage 4 CUSTOM TZ/B Kevlar/Ceramic-Series Modular Clutch 550-600 torque capable--- 580.00
- Siemens OE 888cc (@ 43.5psi)/ 1025cc (@58psi)--- 254.00
- Walbro 255 LPH High Pressure Fuel Pump--- 99.99
-Tial 38mm Wastegate with Large Green Spring (13 psi)--- Free
-CXRacing Direct Fit Intercooler---184.00
-Tuned By D3 Performance Engineering---640.00
-AGP 3 inch Cold Air Intake System--- 170.00
-AGP Big Turbo Bolt and Locking Tab Kit--- 55.00
-AGP Big Turbo Gasket Set--- 39.00
- AGP Big Turbo Water Plugs--- 15.00
- AGP Hardpipe Kit - UHP and LHP--- 225.00
- Mopar 3 bar MAP Sensor--- 59.50
- Mopar 3 bar TIP Sensor--- 39.50
-Oil Drain Kit (For Upgraded Turbos)--- 39.00
-Oil Feed Line Kit (For Ugraded Turbos)--- 79.00
- AGP Log Manifold, 3in O2 Housing, and wastegate dump tube--- 644.04
- Ed Peters Rebuilt transmission, Ed Peters Throw Out Fork--- 615.00
-DCR Brass Pivot Ball--- 39.95
-3in Silicone turbo elbow- 12.00
-Mopar OEM Clutch Slave Cylinder--- 114.99
- Mopar OEM Clutch Master Cylinder--- 157.99
- OEM Exhaust Manifold Gasket--- 14.99
- Granatelli Spark Plug Wires--- Free
- Mopar OEM Rear Main Seal--- 15.99
- (2) Mopar OEM Axle Seal--- 31.98
-MPx Oil Catch Can--- Free
- HKS SSQV4 BOV--- 105.00 (New), HKS SSQV BLOW OFF VALVE BOV Replacment O-RING and C-CLIP SET--- 21.99
-Syked Stage 1 ECU--- 150.00
-NGK Iridium Colder plugs--- 30.00
-Hallman Pro Boost Controler--- 129.00
Interior
-Viper Seats (Used)--- 294.99
-Mopar OEM Floor Mats--- 67.10
-Kenwood Excelon KDC-X697--- 126.36
-Rockford Fosgate Power 6.5s and 6x9s--- 356.38
-Jenson 760watt 4 channel amp--- 95.00
-Rockford Fosgate R2 Ultra Shallow 10-Inch 4 Ohm DVC Subwoofer--- 59.00
- Polk Audio DB1001 1-Inch Silk/Polymer Composite Dome Tweeters--- 58.95
- Autometer Cobalt Boost Gauge--- 80.56
-MPx Polished Shift Knob--- 44.99
-Maddog STS 58-4 and solid shifter base booshings- 140.00
- Booger Shift Linkage Bushings--- Free
-Gauge Cluster LED Kit VERSION 3.0--- 40.00
-NEO4-BHP 4mm NEO4-xHP Blue LEDs--- 14.44
- New Headliner--- 38.00
Suspension
- Koni Adjustable Yellow Shocks--- 400.00
- NRG Closed End Spline Drive Lug Nuts with lock--- 100.00
-H&R Sport Lowering springs- 193.00
-Motegi Racing MR127 Wheels--- 912.99
-Hankook Ventus V12 Evo K110--- 339.20
-AGP Dogbone Engine Mounts--- 134.99
-BWoody Performance Solid Transmission Mount--- 69.99
-Prothane Total Suspension Bushing Kit--- 179.99
-Hotchkis Swaybar Set--- 359.99
Exterior
-Basecoat--- 424.77
-Primer and Clear Coat from SPI Polyurethanes--- 222.63
-20% Window Tint All Around/ Windshield Bra--- 140.00
-Sylvania Silverstar Blue Turn Signal Bulbs--- 24.99
-SRT-4 Front Bumper Badge--- 20.00
-Dodge Neon SRT-4 Nostril Badge Emblem--- 40.00
- SRT-4 Caliber Badge MOPAR SRT4 EMBLEM--- 30.00
- 2.4L TURBO Hood Scoop Decal by TFB Designs--- 10.00
- DEPO SMOKE BUMPER SIDE MARKER LIGHTS--- 20.00
- SMOKED REAR 3RD THIRD BRAKE TAIL LIGHT--- 24.99
-DEPO LED Black Taillights--- 140.71
-Torque Solution Exhaust Mount Kit--- 23.99
- 3in MPX Dual Exhaust with catted downpipe--- 799.99
- 3in MPX Cattless Downpipe (currently running)---209.99
MPx Shorty Antenna--- 19.99
Engine/ Transmission
- Borg Warner s251sx turbo .48 housing 51mm extended tip technology. 3in inlet and 2in outlet. (47lb flow rate)--- 621.42
- TMZ/South Bend Clutch Heavy Duty Stage 4 CUSTOM TZ/B Kevlar/Ceramic-Series Modular Clutch 550-600 torque capable--- 580.00
- Siemens OE 888cc (@ 43.5psi)/ 1025cc (@58psi)--- 254.00
- Walbro 255 LPH High Pressure Fuel Pump--- 99.99
-Tial 38mm Wastegate with Large Green Spring (13 psi)--- Free
-CXRacing Direct Fit Intercooler---184.00
-Tuned By D3 Performance Engineering---640.00
-AGP 3 inch Cold Air Intake System--- 170.00
-AGP Big Turbo Bolt and Locking Tab Kit--- 55.00
-AGP Big Turbo Gasket Set--- 39.00
- AGP Big Turbo Water Plugs--- 15.00
- AGP Hardpipe Kit - UHP and LHP--- 225.00
- Mopar 3 bar MAP Sensor--- 59.50
- Mopar 3 bar TIP Sensor--- 39.50
-Oil Drain Kit (For Upgraded Turbos)--- 39.00
-Oil Feed Line Kit (For Ugraded Turbos)--- 79.00
- AGP Log Manifold, 3in O2 Housing, and wastegate dump tube--- 644.04
- Ed Peters Rebuilt transmission, Ed Peters Throw Out Fork--- 615.00
-DCR Brass Pivot Ball--- 39.95
-3in Silicone turbo elbow- 12.00
-Mopar OEM Clutch Slave Cylinder--- 114.99
- Mopar OEM Clutch Master Cylinder--- 157.99
- OEM Exhaust Manifold Gasket--- 14.99
- Granatelli Spark Plug Wires--- Free
- Mopar OEM Rear Main Seal--- 15.99
- (2) Mopar OEM Axle Seal--- 31.98
-MPx Oil Catch Can--- Free
- HKS SSQV4 BOV--- 105.00 (New), HKS SSQV BLOW OFF VALVE BOV Replacment O-RING and C-CLIP SET--- 21.99
-Syked Stage 1 ECU--- 150.00
-NGK Iridium Colder plugs--- 30.00
-Hallman Pro Boost Controler--- 129.00
Interior
-Viper Seats (Used)--- 294.99
-Mopar OEM Floor Mats--- 67.10
-Kenwood Excelon KDC-X697--- 126.36
-Rockford Fosgate Power 6.5s and 6x9s--- 356.38
-Jenson 760watt 4 channel amp--- 95.00
-Rockford Fosgate R2 Ultra Shallow 10-Inch 4 Ohm DVC Subwoofer--- 59.00
- Polk Audio DB1001 1-Inch Silk/Polymer Composite Dome Tweeters--- 58.95
- Autometer Cobalt Boost Gauge--- 80.56
-MPx Polished Shift Knob--- 44.99
-Maddog STS 58-4 and solid shifter base booshings- 140.00
- Booger Shift Linkage Bushings--- Free
-Gauge Cluster LED Kit VERSION 3.0--- 40.00
-NEO4-BHP 4mm NEO4-xHP Blue LEDs--- 14.44
- New Headliner--- 38.00
Suspension
- Koni Adjustable Yellow Shocks--- 400.00
- NRG Closed End Spline Drive Lug Nuts with lock--- 100.00
-H&R Sport Lowering springs- 193.00
-Motegi Racing MR127 Wheels--- 912.99
-Hankook Ventus V12 Evo K110--- 339.20
-AGP Dogbone Engine Mounts--- 134.99
-BWoody Performance Solid Transmission Mount--- 69.99
-Prothane Total Suspension Bushing Kit--- 179.99
-Hotchkis Swaybar Set--- 359.99
Exterior
-Basecoat--- 424.77
-Primer and Clear Coat from SPI Polyurethanes--- 222.63
-20% Window Tint All Around/ Windshield Bra--- 140.00
-Sylvania Silverstar Blue Turn Signal Bulbs--- 24.99
-SRT-4 Front Bumper Badge--- 20.00
-Dodge Neon SRT-4 Nostril Badge Emblem--- 40.00
- SRT-4 Caliber Badge MOPAR SRT4 EMBLEM--- 30.00
- 2.4L TURBO Hood Scoop Decal by TFB Designs--- 10.00
- DEPO SMOKE BUMPER SIDE MARKER LIGHTS--- 20.00
- SMOKED REAR 3RD THIRD BRAKE TAIL LIGHT--- 24.99
-DEPO LED Black Taillights--- 140.71
-Torque Solution Exhaust Mount Kit--- 23.99
- 3in MPX Dual Exhaust with catted downpipe--- 799.99
- 3in MPX Cattless Downpipe (currently running)---209.99
MPx Shorty Antenna--- 19.99