What point does the U-Bend serve? I know its good to get it out of the way, but are there any side effects to it? The only mod I have right now is a custom air intake (Which I'll be redoing SOON)
And its just: Take it out and replace with 3" piping?
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02-03-2010
What point does the U-Bend serve? I know its good to get it out of the way, but are there any side effects to it? The only mod I have right now is a custom air intake (Which I'll be redoing SOON)
And its just: Take it out and replace with 3" piping?
02-03-2010
stock is 2.5 in piping i believe... its very restrictive and is one of the first mods u should do... if u plan to mod heavily get headers... if u plan some minor bolt on mods.. get a 3 in downpipe it has u bend deleted already. no side effects...do u have a GTP or GT? also read this 5 times... http://www.grandprixforums.net/f81/s...car-17482.html
Last edited by gtpinsc; 02-03-2010 at 06:00 PM.
Originally Posted by SuperSport
02-03-2010
I know, I've read that a ton, but I was just wondering if, with only an air intake, it would have some nasty side effects.
whats it there for anyways.....?
02-03-2010
GM thought it would be a safe place for an o2 sensor... it will better the car if anyting... u would be fine doing a delete... its cheap too.
Originally Posted by SuperSport
02-03-2010
So... just take it to an exhaust shop and say "Take this out, put piping in"?
02-03-2010
pretty much yea... get the delete from ZZP or look in the for sale section for one.
Originally Posted by SuperSport
02-03-2010
buttttt its better to just get a 3 inch downpipe... i found mine on here used for 100 shipped.
Originally Posted by SuperSport
02-03-2010
Like gtpinsc said, Gm and their wonderful location for the o2 sensor. Go to a good exhaust shop, tell them you want the u-bend in the exhaust taken out and a straight piece put in place. They will match the correct size pipe to weld in place. You cant miss it when you look under the car. This will get you around 5hp and the car will breath better! Shouldn't cost more than $25 30 bucks.
02-03-2010
I agree, but I'm paying off the new tranny I got, so 100 is a big deal to me at this point, where as 20-25 or whatever is doable
02-03-2010
If you have a GTP save for headers! You won't be dissapointed. Downpipes \ ubend deletes and plogs are a waste of money if you're going to mod your car at all for performance. The money you will spend on all three of those things you could have a decent set of headers for.
02-03-2010
You can get the Speed Daddy Headers for less than $200 shipped to your front door, full 3" downpipe/u-bend delete section too...everything bolts up as well.
02-03-2010
u gotta get the headers...don't do any mods till u get enough for the headers, they'll replace the factory crap(down pipe and u bend)..^^^blue had a good post on headers(knock off kind).. by the time u do ubend delte and d/p and then plog, u would;ve already paid for headers....the u bend was for o2 clearance--yeah, gm, great idea!
02-04-2010
Oh yea, Im not gonna do d/p and plog, I will be saving up for headers, but for a quick $20, I'd love to get the u-bend deleted
02-04-2010
Also, thinking ahead:
Would you probably need the same mods to run a 3.5 pulley as yo would a 3.4? Or would you be able to run a 3.5 with slightly fewer mods? Like a CAI/Plugs/T-stat and u-bend?
I dont want to blow up my car either, but if I dont absolutly HAVE to have headers for a 3.5, I might do that as well. I probably wont take my car lower than 3.4 ever. I'll probably get a Trans AM sooner than that xD
02-04-2010
Why does everyone think the pulley drop is GOD?
A tuned GTP with a u-bend delete and a fenderwell and a T-Stat will run circles around one with those same mods and a 3.5" minus the tune...or hell...a custom tuned BONE STOCK car will eat a 3.5" car for lunch. Get supporting mods before being ignorant dropping pulley sizes. Buy headers up front and be done...that way you wont have to pawn off the PLOG/DP when you need more flow.
02-05-2010
I dont think a pulley drop is god, and I've read that post multiple times about modding my car. Clearly I'll be getting a tune, but I'll eventually be going for a 3.4 pulley, but I at least want to get it started
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