04.5-05 LLY Performance Parts Discussion | Chevy and GMC Duramax Diesel Forum

Sticky Read Before Posting Please

13

10K

by FLBoy

Looking for More Turbo Whistle and little more power -What's your thoughts on this Turbo Upgrade?

2

23

756

2004 LLY upgrades recommended?

9

328

Egr delete with no up pipe?

2

138

7

1K

Best intercooler upgrade for lowering LLY EGT

2

28

842

by ShopSpecialties

S&B mouth piece or any copies?

10

839

60 over nozzles install

13

882

by yip

Downpipe sugestion

4

217

2004.5 LLY Mostly stock - looking for upgrades but still Pass CA smog

9

247

by yip

Upgraded Transmission

2

32

2K

2

138

by SilverGorillaLML

0

280

Finally got a Duramax and have some exhaust questions

12

2K

Spade Jack Tuner

10

736

HSP Cold air intake

1

232

1

217

by caleb.broege

HSP Cold Air Intake Bundle Woes

3

377

0

173

2

20

2K

by DMVet

375/45 on 22x14

2

193

Kit for intake on 2004.5 duramax

3

347

1

246

steering wheel play

15

7K

by SkinnyECV711

Leveling of my GMC 2004

0

168

LLY Fleece 63mm vs 68mm

4

809

S472 daily driver lly?

3

252

Choosing between two- lift pump or delete

15

2K

Crazy larry setting. Bully dog power pup

9

4K

Cts2 in conjunction with Banks six gun?

3

346

by Col. Walter E. Kurtz

LLY Running Warm

14

2K

Cab Lights Leaking

5

4K

by lmr839

4

1K

Next step in build insight

6

426

by SilverGorillaLML

Real worth of a Duramax? Are they even worth a rebuild?

2

35

6K

by [email protected]

PPE passenger side up pipe.

9

782

by DirtyMaxBliss