ripgtp97

iTrader: (2)

Before: 280hp/290tq with everything stock. clogged cats. and a borla exhaust

After: Longtubes, ORY, SLP LM2, MTI Lid, P&P TB, AIR! EGR! MSD Ignition Wires, NGK Tr55 Spark Plugs
and a tune

btw its a 2000 A4 Trans am

I'm thinking i'll get around 10-15 back if i just put new cats on.. they are extremely clogged and causing stalling issues. so with that being said i'm thinking this:
+20 cause of the ORY ( assuming id normally be 15 higher than this)
+15 for the headers
+10 LID
+5 LM@
+5 TB / K&N
+10 for tune

= 330-340??

ripgtp97

iTrader: (2)

anybody? Am i shooting too high??

Arctic2002ss

Yeah, I would hope for 330. I was at 342 with similiar mods and M6. You might look at upgrading to an LS6 intake too.

BlackScreaminMachine

iTrader: (17)

Unless the Borla was fully capped there should be no real diff between a LM and that. The clogged cats are certainly the variable here. You really should get a LS6 intake, definitly if getting tuned. The deals are out there.

As for a comparision.

My car:

-2002 (see LS6 intake), NON WS.6, M6 and 10 bolt w/ SLP lid and filter = 324 rwhp

-Then added Dynatech headers, catted Y, Corsa, 3" steel DS and Moser 12 bolt (still 3.42) with Tru Trac diff and NO tune = 325 rwhp (yea, I was suprised and pulling timing).

-Dynotuned (dyno jet) + 4.10 gears vs 3.42's 355 rwhp.
-Added Vengance Racing VRx4 cam 228/230 112 LSA 386 RWHP.

senicalj4579

iTrader: (41)

mods in sig 337 rwh and 443 rwt on a dyno dynamics dynometer.
and 326 rwh 335 rwt on mustang dyno with the stall.

Track times in sig also.

ripgtp97

iTrader: (2)

I'm really hoping to see decnetly big gains because of those damn cats.. and also the borla was the non-adjustable so I"m hoping to see some gains from the loud mouth 2 as well