The complete bolt on list....
This is a GTO Specific list however is applicable to LS1's/LS2's.......
Here Is A List of Bolt On Modifications You Can Do To Your Pontiac GTO to increase Horsepower & Torque. The RWHP Numbers That Are Given Are What People Usually See At The Dyno. Custom Tuning Will Help Some Bolt On Modifications Maximize Their Full RWHP Potential. Results WILL Vary.
NOTE: 2004 LS1 GTO Output With Full Bolt On's
RWHP ~ 330-350
RWTQ ~ 340-360
NOTE: 2005 LS2 GTO Output With Full Bolt On's
RWHP ~ 350-380
RWTQ ~ 350-380
* = Will Also Work With The LS2 2005 + GTO
Cold Air Intake
RWHP Gain ~ 5-15
RWTQ Gain ~ 10-15
Average Cost - $180 - 370
* LPE*
* K&N*
* Speed Inc.
* MPD
* Gravanna*
* AEM*
* New Era*
* Stainless Works
* JHP/HSV MAF Pipe
* CS Performance Ltd MAF Pipe
* CS Performance Ltd CAI
Long Tube Headers
RWHP Gain ~ 25-35
RWTQ Gain ~ 20-30
Average Cost - $1100 - 1300
* Kooks*
* SLP*
* Stainless Works*
* DynaTech*
Mid Length Headers
RWHP Gain ~ 15-20
RWTQ Gain ~ 10-20
Average Cost - $750 - 900
* SLP
Shortie Headers
RWHP Gain ~ 10
RWTQ Gain ~ 10
Average Cost - $560 - 735
* JBA*
Cat-Back Exhaust
RWHP Gain ~ 5-15
RWTQ Gain ~ 5-15
Average Cost - $500 - 910
* B&B
* Borla*
* Corsa*
* Flowmaster
* Stainless Works*
* SLP*
* Magnaflow*
Intake Manifold
RWHP Gain ~ 5-15
RWTQ Gain ~ 5-15
Average Cost - $750 - 1000
* FAST LSX*
* Weiand
* NX
* Holley
* Edelbrock
* BBK
Custom Tune
RWHP Gain ~ 15-25
RWTQ Gain ~ 15-30
Average Cost - $150 - 500
* LS1 Edit
* LS2 Edit*
* Predator Power Programmer*
* Superchips Power Programmer
* Hp Tuners*
* EFI Live
Electric Water Pump
RWHP Gain ~ 10-15
RWTQ Gain ~ 5-10
Average Cost - $550 - 600
* Meziere
Thermostat
RWHP Gain ~ 2
RWTQ Gain ~ 2
Average Cost - $10 - 40
* SLP*
* LPE*
Ported & Polished Throttle Body
RWHP Gain ~ 5-12
RWTQ Gain ~ 5
Average Cost - $100 - 500
* SLP
* MTI
* FAST*
* NX
* LPE
* Nick Williams*
* Shaner
* Bo White
* Jantzer
Throttle Body Coolent Bypass
RWHP Gain ~ 2-3
RWTQ Gain ~ 2-5
Average Cost - $15
* BMR
Oil Catch Can
RWHP Gain ~ 2-4
RWTQ Gain ~ 2-4
Average Cost - $90 - 130
* AMW*
* CS Performance Ltd*
Underdrive Crank Pulley/Alternator Pulley
RWHP Gain ~ 8-12
RWTQ Gain ~ 8-12
Average Cost - $180 - 220
* ASP*
* SLP*
* March*
Thanks to LS1PontiacGTO for putting this together...