Ls4hundred

Hey guys, how much did you spend to have your exhaust made? I am planning on deleting the resonators and adding an x-pipe. Should I use 2.5 or 2.25 from the cats to the x-pipe? After the x-pipe I am planning on using 2.25 so as not to lose low end. One more question though, should I get rid of the mufflers or buy some high flow ones? If so, which should I use, magnaflow, flowmaster, or borla?

pfantom68

You don't need more than 2.25 really if you're doing a true dual setup. Get rid of the mufflers and get Magnaflows or Borlas. Magnaflow is usually cheaper than Borla, and produced a much nicer sound than Flowmaster.

I'm not sure how much the mufflers and x-pipe will cost, but the piping and labor itself shouldn't run you more than $300 tops.

greenvy2k

are you just trying to achieve different sound?

i just did a muffler delete on my 99 ls. sounds really good. it cost me 150 for labor and parts.

sonyman

It's not even a matter of need. Dual 2.5" would be too little backpressure and reduce low-end power. Also, the price above would be for a crush-bent system, which should suffice for a N/A setup. Magnaflow and Dynomax are two good brands.

PureDrifter

iTrader: (10)

2.25in is the best choice for the 1UZ as long as ur not FI.

i JUST got my exhaust done not completely done yet but it will be soon

Ls4hundred

ok, thanks guys. I was going more for performance than sound, but a good sound is a must. Would mandrel bent be more expensive and/or effective?

PureDrifter

iTrader: (10)

definitely more expensive but performance gain will be minimal on a stock motor.

basically the $$$ normally isnt justified by the performance advantage on a car thats stock.

illcelsior

You'd be better off buying a light weight material, than putting the extra $$ into Mandrel bent pipe.

Ls4hundred

The Ls uses a center in center out muffler, not offset right?

pfantom68

Here's a picture of the stock catback with yours truly...



The stock muffler inlets are center, but it looks like the outlets are slightly offset. Shouldn't be that big of a deal.

greenvy2k

well like pure said it would be very minimal to see any performance gains from exhaust mods on a stock motor. so unless u were doing planning on doing any mods to the motor i would just do a muffler delete.

i have to post the pics of my muffler delete so you can get an idea of a option.

i know that those outlets a little offset and you would also want to keep the hangers in mind.

PureDrifter

iTrader: (10)

nononono, ur misunderstanding me.

doing a full cat-back exhaust will have a decently noticeable effect in response, but going with SS tubing, mandrel bent tubing, any tubing >2.25in is a waste since the minute performance advantages are NOT justified by the cost.

PureDrifter

iTrader: (10)

2LS is slightly different in the center

TJW98LS

iTrader: (1)

Id love tyo see everyones exhaust set-up of underneath the car.

PureDrifter

iTrader: (10)

soon