Forum: Performance Modifications

hey all. im in the process of an LQ9 swap and im in need of a new muffler(s) this is a cali legal swap so im keeping the stock manifolds/cats. the...

Gonna pull my 4.8 and throw it into my dads 57 since it runs much better then his current engine. In doing this my truck will get the 6.0 it's always...

my truck is completely stock(except CAI and 3" magnaflow catback), with the stock tune still. i scored a set of brand new obx longtubes. what kind...

Hey everyone, been a long time since I've posted. Just been lurking. I've got a friend who works full time for a known engine builder whos...

I have read most prior post before I ask this question and have searched and done lots of reading. I plan to swap my 212/218 low lift cam for a...

I'm putting a vvt cam in my Ly6 It's 216 intake 230 exhaust and 600 lift Was wondering if I should degree the cam when I install it or do I put it...

if you have ever gone from a chambered muffler to a straight through muffler, and gained or lost performance, please post up your gains/losses. ...

It would appear that the headers offered for $300ish from the likes of Speed Daddy are gone. The closest thing now are OBX kits for 500+. Anyone know...

I have almost finished my LQ9 swap into my single cab. New exhaust is needed. I am thinking flowmaster super 10's true duals. Anyone have anything...

I know not the first choice for all out, but for those who Worked with what they had..... Who's got power house 5.3 builds... Power Numbers Build...

I have a lm7 it is getting the vinci trucker cam along with pushrods and springs. I plan on getting a nelson tune and hitting it with a 100 shot will...

I'm looking for a cam and springs for my "cheap as dirt" 4.8L build. I'm not trying to build a max effort 4.8 or anything like that, just...

I just picked up an ls7 cam, does any1 know wat it's worth? I'm not going to use it so I wanna sell or trade it.

Picked up a 6.0 block Saturday and getting ready to build it. I'm not try to build an extravagant boost engine , just a stout 600 HP engine . I need...

Seems like everyone is going turbo anymore, so I'll stick with nitrous. Block is a 6.0 bored 4.030 Pistons are Wiseco 12+cc dome pistons that...

I've been looking on eBay for sometime now at buying a set of the stainless steel longtubes with a y pipe and now I see they are temperature...

I've got a l33 that I will be building and wanted to see if anyone eles here had the same setup that has dynoed there truck. It will be a mild build...

I found a shop in town that will dyno tune with EFI live. I do not know anything about EFI live so I had some questions. Does EFI live allow...

So Ive searched and not come up with much other than forsale threads from back in 07. Im running some pacesetter longtubes with the ORY, and need to...

I found one for sale close to me new for $50. Heres the link for the one i found...