The complete bolt on list....

**Sarge** · 12-05-2005, 04:56 AM

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...

**predator** · 12-07-2005, 02:32 PM

You Da Man Sarge....

**Redphoenix1998** · 12-08-2005, 12:25 AM

great info sarge, you deserve a sticky for that one!

**trino pp** · 04-26-2006, 07:39 PM

It couldn't be better. Thanks Sarge

**klink** · 05-12-2006, 11:55 AM

Hi Guys,

new to forum, I am in australia and own a 02 Holden Commodore SS (4 door version) compared to gto 2 door. LS1 M6.

Stock they claim 225fly wheel kw

I installed a set of headers 13/4 inch 4 into 1 with 3 inch collector. Had factory cats modified to fit collector with 21/5 inch redback exhaust.

They tuner then did a mafless ls1edit.

I now have 321kw at fly wheel and 245 at the wheels.

Just for comparison. may help may not.

**Red Chevy** · 08-23-2006, 11:25 PM

Thanks a lot Sarge. I gave you 20 for that.

**MYZ2HATE** · 10-21-2006, 08:13 PM

can u please tell if i can turn my 96 z28 into a 98 ss

**predator** · 10-22-2006, 02:26 AM

you talking body or every thing?... body is just a matter of parts and paint... an actual ls1 in the thing is slightly more of a hassle.

-me

**Vexzer** · 04-17-2007, 06:08 PM

Oil Catch Can? RWHP Gain ~ 2-4 RWTQ Gain ~ 2-4 Average Cost - $90 - 130

What are you guys talking about? Thanks

**INMY01TA** · 04-19-2007, 02:22 PM

Well according to LS2 Tuner you forgot to putt Nitrous on this list.

**greatwhiteZ28** · 05-26-2007, 02:56 PM

woow great write up

**Sarge** · 05-26-2007, 03:09 PM

Originally Posted by Vexzer

Oil Catch Can? RWHP Gain ~ 2-4 RWTQ Gain ~ 2-4 Average Cost - $90 - 130

What are you guys talking about? Thanks

Well many folks attribute gains to keeping the oil out of their intake and TB. Me...I just dont want oil in there

**Twistingreality** · 05-31-2007, 07:29 AM

Great write up, can you give me a website to get a catch can?

**Sarge** · 05-31-2007, 10:32 AM

http://www.accmachtech.com/pcvcatchcans.htm

**INMY01TA** · 05-31-2007, 02:12 PM

http://catchcans.com/index.html

**35thAnniZ28** · 06-13-2007, 09:00 PM

ima buy one now

**Vexzer** · 06-14-2007, 07:31 AM

Catchcan -Yes! Mine smokes a little on startup. I know that doesn't have to do with oil introduction through the PCV, but any reductions got to help. Thanks for the tip.

**SS-Power** · 06-16-2007, 07:50 AM

Here is one at the ws6 sore.
http://www.ws6project.com/user_stor/...c4f332b585375c

**kyemt** · 08-17-2007, 05:24 AM

i know a old thread but i have all these mods, i thought a ls1 gto dynoed stock close to 300 rwhp? if that being the case, i have all the mods listed except electric water pump, i shoudl have between 374 rwhp and 438 rwhp right not the 350 rwhp?????