Best bolt on parts for my 06 GTO?? - LS1TECH

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Best bolt on parts for my 06 GTO??

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Old 01-06-2017, 01:55 AM   #1
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Default Best bolt on parts for my 06 GTO??

I just bought a 2006 GTO with the 6.0 and auto trans, ive ordered long tube headers with catless y pipe and the SLP loudmouth mouth exhaust system and a k and n cold air intake. What would be the next step in modding my 6.0. I am planning on doing heads and cam later on. Just wanting to do bolt one for now. And get a good tune. I have been told to upgrade the throttle body and intake, what's my best option? Any help would be great, thanks in advance.
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Old 01-06-2017, 03:28 AM   #2
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Torque converter 3600-4000
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Old 01-06-2017, 05:41 AM   #3
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Definitely a torque converter as stated above. Yank, circle d, and coan are a few choices. I would wait for the intake and TB for when you do your heads/cam. You will see the most returns from that upgrade at that time. Plus when you retune, you could save some cash and tune it in one shot.
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Old 01-06-2017, 01:36 PM   #4
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Welcome to the wonderful world of GTO's! They are a great GT car for the money. What are your plans and budget? Street, drag, road course, other?

'06 GTO's don't have a Y pipe. I presume you mean catless mids and either and X or H pipe. Agree on the converter. If it was me I would lean toward the high side. The LS2 power band really kicks in at 4k rpm. And add a good cooler and shift kit.

The K&N is a waste of money. Return it and get an over-the-radiator kit. Check out for your options for the OTR kit. You should tune after you add the exhaust and air filter. You can also add an under drive pulley. Budget permitting, FAST intake and TB will give you a good upper-range increase. Add all these up and you should have some good bolt-on power. You'll have to deal with the suspension and drive train at some point if you keep adding power.
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Old 01-07-2017, 02:48 PM   #5
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Another vote for a torque converter here. It will literally transform the car and really get that heavy thing going. Some other bolt-ons to consider would be having the stock intake manifold and throttle body ported. Porting both have been proven to make worthwhile solid gains and I can speak to that from experience.
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Old 01-09-2017, 06:26 PM   #6
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Best to return the hot air K&N and get an OTRCAI ( over the radiator cold air intake) and a MAFLESS tune.

My preference is the RamJet, although it does take quite a bit to make it fit.
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Old 01-19-2017, 09:57 AM   #7
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The K&N is a major waste of money and will do you no good whatsoever. Any OTR is an improvement. Vararam, has its fans and detractors, but I like mine, keeps the air intake temps very manageable and with some trimming and extra material to seal the pan to the hood, it looks great. With the scoops modified to be open and direct air down, it allows a little outside air to flow down into the engine. make sure you re-tune after adding any OTR. Adding a catch can will really help keep oil out of your intake. When you decide on heads and a cam, a ported FAST 102 with a 102 TB is a great addition.
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Old 02-04-2017, 10:53 AM   #8
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I'm in the same boat as the OP. What are the popular TB used on the GTO???
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