hey whats up, i have been a member for a lot time but stop coming to the site becuase of lack of money. so now i think i am going to get back into to moding my car. so far i have Injen CIA, Pulley,Axle Back, and some cosmetic stuff. I am thinking about buying myself coilovers for X-mas. but i had a real quick question. if i had a shop weld on a highflow cat would i gain any power, or would i just gain sound?

 

you won't notice a power difference, if any on a stock exhaust.
even with an axelback as well...
might be a bit louder/deeper...thats about it..

 

really won't gain a whole lot if anything with the mods you have...

 

...Uff

Of course there will be a gain, the cat is the most restrictive part in the exhaust, aside the pressed part in the downpipe. Thats how u unlock the top end of a RA

 

the DP is more restrictive than the cat, do it all at once and you will see a difference. the car will be more raspy with a HFC unless you get a good sized muffler and resonator combo, the stock ones don't handle the noise well enough with all the additional flow. It will be a little raspy even with your axleback.

 

Back in the early nineties my brother had the best high-flow cat ever, on his Daihatsu Charade (3 cylinder turbo! was actually an awesome hatchback, lowered, body kit, racing seats in front, back seat ripped out, big subwoofer in the spare wheel well etc.)

The cat looked like the stock standard one, but inside it was just a hollow with pipe running straight through... can't get much more high-flow than that - and it looked stock wa-hey!

 

I don't think that was a HFC, maybe a gutted CAT but not a HFC.

 

wait....you need money to come here?

 

yea, i charge a $20 admission fee

 

i got into a car accident, so all of my money was going to that. plus with a wrecked car looking at this site would just make me mad. but that is all in the past i am back in the game now. screw the HFC, i am buyin myself some Tein SS coilovers for x-mas. hopefuly have the supension that way i want it before winter ends.

 

duh :P

 

Just hope u dont get snow!

 

 

I have a dp/catless/RRM catback. I definitely feel a ton of gain up top, though I feel as though I lost a bit down low, but I don't mind. Btw... the RRM exhaust setup, catless is loud. Simply put, very raspy and kinda has a slight "coffee can" rattle to it in the lower RPM's. But it purrs otherwise. I don't mind it, I'll be getting a cat soon though otherwise dangerousdan will go danger danger on me... haha

(PS Dan I got all the tuning components in.. I just need to install them now PM me, I never talk to you anymore.)

 

awww snit!!! some more tuning through tah PM's!!